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How to make a drilling machine with your own hands at home. Do-it-yourself drilling machine from a drill. Scheme of creating a machine

Drilling machine you can make it yourself at home from ordinary electric drill or steering rack.

Mini machines in amateur radio workshops homemade are found most often for the reason that it is expensive to buy industrial units, but making a device with your own hands is not difficult.

The idea of how to make a drilling machine (including using a steering rack) occurs not only to radio amateurs, but also to people who from time to time need to perform repair work at home.

At the same time, the manufacture of a micro-assembly does not require special devices or high-strength materials.

On initial stage It is necessary to create drawings to facilitate the manufacturing process of the machine.

Drilling unit from a drill

You can assemble an additive mini drilling machine from a drill with your own hands using only four main components. The first thing you need to do to create an additive machine is to select a bed - the foundation for the future.

An electric drill can be used as the rotation mechanism that is necessary for the mini additive machine to function. Then you need to decide on the feeder and vertical stand.

Since the drill is light in weight, you don’t need to look for special tools or very durable materials for the stand, you can take wooden boards or chipboard board.

For the frame, on the contrary, it is necessary to select a more massive material, which will eliminate the occurrence of vibration during drilling work.

Suitable material in in this case is a furniture board with a thickness of 2 cm.

The best option when choosing a material for making a frame may be the stand of an unnecessary photo enlarger, but its design will have to be slightly modified.

The accuracy of the drilling process on a homemade mini unit will depend on the quality of the connection between the vertical stand and the frame.

It is necessary to cut two guide strips from steel strips to move the block with the drill. Attach these devices to the stand with screws.

To securely hold the drill during the manufacture of the block, steel clamps are used.

Place between the drill and the block rubber gasket in order to reduce vibration of the mini drilling machine.

The feed mechanism of the machine is a simple lever with which the block with the drill will move vertically. The mechanical device is equipped with a spring that is quite powerful and elastic.

One end of the spring element will rest against the block, the other - against the beam attached to the table.

To achieve the most convenient use of a mini drilling machine, provided that the drill is not planned to be removed from it periodically, complete disassembly of the drill switch and mounting of a separate switch on the frame will allow.

You can consider in detail how to make an additive tabletop drilling unit using an electric drill in the proposed video.

Steering rack for drilling machine

The drilling machine can be done using an upgraded steering rack. Since buying a new steering rack will not be cheap, it is recommended to purchase a used part, preferably from a VAZ 2108.

After purchasing a steering rack, it is necessary to carry out preventive maintenance of the part in order to ensure its smooth operation.

Instructions for manufacturing the frame and its installation:

The machine body is made taking into account the dimensions of the drill and column. The table on which the platform with drilling parts will be fixed must have suitable dimensions, approximately 20x30 cm;
The structure with which the drill will be secured is mounted on the steering part at the locations of the mounting bolts;
The stand for the drilling machine is made of a U-shaped steel profile 30x60x30. It is welded to a sheet of metal 2 mm thick. The stand should have a height that exceeds the length of the column by 6-7 cm. The stroke of the rod for the steering rack from the VAZ 2108 is 210 mm;
By mounting additional ribs between the two elements, the rigidity of the rack is increased.

For comfortable use of the drilling machine, it is recommended to consider a convenient system for starting and shutting it down.

Thematic video material will complement the topic.

PCB Drilling Machine

To assemble a micro drilling machine for printed circuit boards, you will need the following parts:

micro motor or high speed motor;
clamping collet for securing miniature drills;
two wooden beams, U-shaped profile, fastening ring for fixing the electric motor;
mobile platform of the machine for printed circuit boards - made independently from scrap materials.

When assembling a desktop micro drilling machine for printed circuit boards, it is recommended to pay attention to the fact that the drill drops exactly perpendicular to the board.

The video below shows a mini drilling machine for printed circuit boards.

If the motor is skewed, then when drilling printed circuit boards, the drills will fail. Clearance and poor fixation of the motor are not allowed; at high speeds it can be knocked out of the frame.

Video material will tell you how to make a micro machine with your own hands for drilling circuit boards.

Design of the coordinate table

If in a homemade drilling machine the functions of the coordinate table are performed by the feed mechanism, then the coordinate milling table has a different design.

A coordinate milling table is a manipulator consisting of a certain number of axes. The milling table is designed to move the processing head in several planes.

At home, you can make a milling table using linear modules made of aluminum profiles.

A gear rack, a reinforced belt or a ball screw element is used as a transmission.

Computer numerical control (CNC) and action controllers are required to control the X-ray table. Controllers are used to manage technical tasks.

To make a milling table, first drawings are made, calculations are made and components are selected.

In this case, the calculation made must be suitable for technical requirements to the use of the machine, including moving masses, speed, acceleration and positioning accuracy.

The design of the coordinate table can be lightweight or reinforced, and be two or three coordinate. That is why it is recommended to initially decide why a milling table will be needed.

Two-coordinate table - base with a movable cross. A desktop is mounted on it. The crosspiece must contain hardened, adjustable and ground slats.

Travel stops are also installed to eliminate clearance. The base is fixed on the legs.

More details about making a coordinate table with your own hands can be found in the video provided.

Homemade vices for machines

If you can’t afford a Soviet vice, and you don’t like Chinese products, then in addition to a drilling machine, you can make a vice with your own hands.

To collect homemade vice, you need to have the following parts on hand:

screw – thread 20 mm, length – 150 mm, the head of the screw must have a slot, as sometimes it does not fit the size of the handles, but it is expanded with the help of a file;
a screw with a ring is used as a handle for tightening;
studs can be purchased at the store or found in old parts;
then you need to make a stationary sponge, possibly from pine wood, and nail the board to the tabletop;
To make the movable part, you will need a board (20 mm thick, 18 mm wide), the length of the movable jaws must be at least 50 cm.

Holes with a diameter of 21 mm are made in the wood. The diameter of the holes in the studs should be 10 mm. Studs, screws, nuts and bolts are installed in the finished holes.

If the vice will be used to work with short workpieces, then the studs in the structure will be rearranged.

The vice is equipped with additional holes, which should be located near the clamping screws.

Homemade vices can have different parameters, it all depends on the selected parts.

The content of the article:

Amateur radio is a multifaceted activity, for some it’s a simple repetition of other people’s patterns to gain moral satisfaction, for some it’s a sport, for others it’s the development of intellectual abilities, and for others it’s creativity, the embodiment of ideas and plans, self-affirmation. But be that as it may, this process is closely related to the mechanical perforation of the foil material, be it textolite, getinax or fluoroplastic. Of course, our (and Chinese) industry produces a lot of products that can make 1-2 holes before breaking, but we, radio amateurs, are a creative people, and we will not get hung up on other people’s buzzers and buzzers, but will try to make our own, which is warmer to the soul and works more reliably . However, the question arises, what to make of? And on what? Not every radio amateur has a workshop nearby, stuffed with machine tools and materials, and the specialists are different now; you can’t get away with a bottle anymore.

But it was a saying, now in fact. Faced with the above-mentioned problem, the idea arose to assemble a drilling machine that can be made even without any special tools. It’s not that there’s nothing to drill with - I’ve been drilling for a long time, about 30 years old, I’ve tried a lot of hand drills, but when I was faced with the need to make an adapter board with many sockets, I decided to make a machine that would greatly simplify and speed up this task. The first thing that came to mind was to google the Internet. For almost a week, in slow traffic, I flipped through what I found, but nothing suitable came across, or rather, I came across a lot, but one did not suit me because of the need to break the microscope, which, moreover, did not exist yet, another was too primitive, the third required special equipment.

Here, for example, is a machine that I liked because of its design, but which is frightening due to the complexity of its manufacture. After looking at other people's designs, I decided to connect the brain bone and make something out of available materials. In general, allow me to present to your attention an amateur radio drilling machine with, which can be repeated with minimal experience in assembling such devices.

Drilling machine bed

First of all, the bed, the basis of any machine. It must be strong and stable. The choice fell on hardware. There wasn’t one, so I had to ask the workshop for scraps. The guide rod was used from a failed printer. I trimmed it slightly with a grinder and welded it to the frame through a pre-drilled hole. To reduce friction, I used bushings from the same printer, but this is not necessary.

So, the first thing that caught my eye was a duralumin panel, 8 mm thick, found once on scrap metal (they hadn’t swept it up so carefully back then), from some disassembled device; it suited me, but it had to be cut into narrow strips. I loaded a new blade into a hacksaw for metal, an oiler so that the teeth would not get clogged, and forward, I sawed the strips, first of all I folded the top and bottom strips and clamped them firmly in a vice and drilled holes for the rod. then, inserting the remaining part of the rod into this hole (so that there was no displacement), I drilled the remaining holes.

The next step was to insert the cross brace, drill holes in it and tap the threads. Having fastened the upper, lower strips and the transverse strut with screws through the standard holes, we proceed to the longitudinal strut. We drill it in the same way as the transverse one, in place through the existing holes in the planks. We look at the rest and do it according to the drawings.

I would like to note that it is not necessary to use the materials that I used here. Several of my friends repeated this design, using plex, an iron rod for welding, and even wood, and it worked great for everyone. I’ll also add for accuracy that the return spring was used from a desalination pump, and the backlight was from an LED flashlight keychain.

Electric motor of drilling machine

We're done with the mechanics, now the heart of any machine is a fiery motor. In my design it is called DPM30-n1-19, but in principle this does not matter, others can be used. We will not heat it to the flame, so we will use a speed controller. I won’t give advice here, as many people as there are opinions. Some people like to drill with a constant torque, others - with a stop for “aiming”, others do something else. At first, I was also in favor of placing the drill at the drilling point and then turning it on smoothly. Convenient and neat if you drill in your hands. But we have a machine. First I tried it without a regulator, at stable speeds. If the drill “beats” a little, the picture is deplorable. But sometimes you don’t have to choose drills, such as they are, so I decided to try a circuit that I found on a radio site with positive feedback.

The essence of the process is that when there is no load on the drill, it rotates at a low speed (about 300 rpm), and when you press it, the load on the drill increases and maximum speed is turned on. This method of management seemed to me (and others) the most effective. The printed circuit board was redesigned to fit its dimensions.

To power the device, you can use any power source of suitable power and voltage. I used an IP from the same printer, slightly modified so that I could change the output voltage. It can then be used to connect, say, a soldering iron or other devices, for more complete use of the IP. Video demonstration of the device:

After the demonstration on YouTube, Viktor Stepanovich Semenchuk contacted me via email with a proposal to make high-quality drawings in Compass in exchange for hand drawings with dimensions, which I did, thank him very much for this. File in PDF. The file in Compas format can be obtained from the author (Viktor Stepanovich) or from me :)

I hope mine simple design It will appeal to both radio amateurs and the Tekhnoobzor administration :) Ask questions on the forum. Best regards, Oleg63m.

Watch the video on how to make a drilling machine with your own hands:

In a wide range of metalworking works, drilling is perhaps the simplest and most accessible operation for everyone. As a rule, in production, drilling work is carried out using various drilling machines.

Depending on the tasks performed, these can be the most common single-spindle units, or multifunctional multi-spindle machines with numerical control.

Homemade tabletop drilling machines

However, we will not be distracted by the description of all kinds of industrial drilling installations, especially since home handyman, for whom this article is intended, will hardly be interested in the subtleties of the design of a universal vertical drilling and boring machine. But the design of a simple homemade drilling machine, which can be assembled from scrap material at home, will interest every “handy” craftsman.

To perform drilling work at home, in most cases, it is enough to have a regular electric drill.

However, when performing work that requires great precision or drilling many small-diameter holes, which is especially important for radio amateurs in the manufacture of printed circuit boards, you will need a drilling machine, since an electric drill will not provide the required accuracy or quality of drilling.

Of course, today any specialized store sells many models of various machines, including drilling machines, intended for use in home workshops. However, their cost is considerable, and not everyone can afford such a purchase, especially since if you have certain skills and desire, you can make a simple drilling machine yourself.

The most common types of homemade drilling machines are:

Drilling machines based on an electric drill
Drilling machines based on an asynchronous motor from household electrical appliances

Let us consider in general terms the manufacturing technology of each of these machines.

Drilling machine based on an electric drill

Due to their ease of manufacture, drilling machines based on an electric drill can most often be found in home workshops.

The weight of an electric drill is small, so to make a vertical stand you do not need any particularly durable materials; it can even be made from boards or chipboard.

The design of the drilling machine consists of 4 main elements:

Base (bed)
Vertical post or beam
Feed mechanism
Electric drill

The choice of the base of the machine, the bed, should be taken especially seriously. The more massive it is, the less vibration will be felt during operation. If your farm still has an old photographic enlarger for developing photographs, after a little modification it can be adapted as a base with a stand. If you don’t have anything that could be adapted as a frame with a stand, this element can be made from a furniture board with a thickness of at least 20 mm.

When attaching the stand to the frame, it is extremely important to obtain a right angle, since the accuracy and quality of drilling will depend on this. Two guides cut from metal strips should be attached to the stand using screws, along which the block to which the drill is attached moves up and down. The block should be made in such a way that the drill can be tightly clamped using metal clamps.

To reduce vibration, a rubber gasket can be installed between the body of the electric drill and the block. The vertical movement of the block with the drill is carried out using a lever. To ensure ease of operation, the feed mechanism should be equipped with a sufficiently powerful spring that could return the block with the drill to its original position. One end of the spring will rest against the block, and the other against a fixed beam, which should be installed on the rack.

If the drill will not be used autonomously, for greater convenience, you can disassemble its switch and install an on-off button directly on the frame.

Drilling machines based on asynchronous motor

In many home workshops there are various electric motors that have been preserved after the life of electrical appliances has expired. For the manufacture of a drilling machine, the most suitable would be an asynchronous electric motor, which is installed on washing machines drum type.

It should be said that the design of such a machine is much more complicated than the above-considered design using an electric drill. Among other things, the motor is from washing machine Quite heavy, which creates increased vibration and requires the installation of a power rack.

To reduce vibration, you should place the engine as close to the stand as possible or choose a fairly weighty, powerful frame.

However, it should be taken into account that when the engine is located close to the rack, the design becomes significantly more complicated, since it becomes necessary to install pulleys with a belt drive. When assembling, you should, if possible, fit all the parts as accurately as possible, since the performance of the machine will depend on this.

To make the pulley structure you will need:

Hexagon
Steel clamp ring
Two bearings
Two pieces of thin tube, one with internal thread
Gear

The moving part of the mechanism can be made from a hexagon, a tube of the appropriate size, a clamping ring, bearings, a tube with a threaded internal thread to which the cartridge will be attached. The hexagon is an element of the transmission mechanism on which the pulley is placed.

To ensure a reliable connection with the hexagon, deep cuts are made at the ends of the tube. A compression ring and bearings are driven into the tube. It is necessary to ensure that the structural elements are attached to each other very tightly, otherwise the structure will begin to collapse from vibration.

To manufacture the machine's adjustment system, you will need a pipe with notches of the appropriate size and a gear, the teeth of which must freely penetrate into the notches on the pipe. In order not to make a mistake with the places of cuts on the pipe and their size, you should roll out plasticine on the pipe and move the gear along it. The length of the ladder pipe must correspond to the height to which it is necessary to raise the chuck with the drill. The axle with a hexagon is pressed into a pipe with slots.

The design described above is quite complex to implement, and, let’s not lie, not everyone will be able to make it. Therefore, the easiest way, when manufacturing a machine with an asynchronous motor, is to select a powerful steel frame and assemble the machine by analogy with a unit with an electric drill. True, in any case, it will not be possible to completely avoid vibration, and one cannot count on obtaining holes of a particularly precise size when using this unit.

Of course, this article only indicates general principles making homemade drilling machines, and it cannot serve as a guide to action. Therefore, before you begin assembling the machine, it is recommended that you familiarize yourself with the drawings of various designs.

In addition, radio amateurs, who, as a rule, drill extremely small diameter holes in printed circuit boards, are recommended to assemble these structures in miniature, replacing the electric drill with a microelectric motor. Together with a voltage regulator, the microelectric motor will allow you to obtain almost ideal holes. An example of the construction of such a machine can be seen in the photo below.

Using regular hand drill It is almost impossible to manually drill a strictly perpendicular hole in a thick block and perform a series of precise parallel drillings. Buying even an inexpensive drilling machine for this purpose is extremely wasteful if similar work is episodic in nature.

There are special devices for factory-made electric drills that expand their capabilities in this regard. Click on the small pictures on the right to view them in more detail.

Their use allows you to turn a drill into a kind of drilling machine. Of course, you can get one of these devices by choosing it for your tool, but you can make a drilling machine from a drill with your own hands. Let's consider several approaches to solving this problem.

Do-it-yourself drilling machine from a drill, drawings

Detailed drawings of such a device cannot be found even on the Internet. This is partly explained by the multiplicity of approaches and technical solutions, and partly by the simplicity and availability of methods for solving this problem. Let's analyze those that we managed to find.

This one is perhaps the most detailed and detailed. The main advantage of this arrangement is the absence of any gear pairs that ensure vertical movement of the drill along the stand, which is the basis of the device. The spring-loaded holder moves along the stand by the distance between it and the lower stop, minus the thickness of the compressed spring. To prevent its rotation in the horizontal plane, there is obviously a groove in the rack along which the screw 16 moves. The location of the tool in the holder is determined based on the parameters of a particular drill.

Even easier to implement on your own is a drawing of a wooden stand for a drill.

Not all sizes are shown on it, due to the fact that they are not of fundamental importance. And the lever feed system, as in the previous case, will ensure strictly parallel movement of the electric drill along the rack. Holding the tool in the upper position is achieved due to friction forces in the grooves and on the side cheeks of the holder and is regulated by the tightening force of the screws.

If you have a spare pair of screws, perhaps from an old vice, it can also be used for the tool feed system in a homemade electric drill stand.

For small drills, you can also use a regular threaded rod Ø 16-20 mm with a corresponding widened nut, which are sold in hardware stores.

Simple designs of homemade stands for a drilling machine

We have selected for you easy-to-make, but in our opinion interesting designs of stands for homemade drilling machines based on an electric drill.

Such a wooden stand can function successfully without a lever, and the tool is raised and lowered either by the handle of the tool itself, or by the upper part of the box in which it is secured.

An interesting design is in which the system of 2 levers is replaced by 1 with a longitudinal groove along which the thrust screw moves.

A productive method is to combine materials for stands to turn an electric drill into a drilling machine. Thus, the main material for their manufacture is wood, but the most wearable components are made of metal, which radically extends the service life of the entire device.

An interesting design using industrially produced furniture runners as guides:

The high precision of their execution has virtually no backlash.

The process of creating a stand for an electric drill is greatly simplified if you have a photo enlarger of any model at your disposal. It is unlikely that it will ever be able to serve you for its intended purpose, but it will make an excellent drilling machine. After all, it already has in its design both guides and a gear rack for moving a rather heavy head along them, instead of which a holder for a drill should be hung.

No less productive is the option of converting old Volgov or Zhiguli rack jacks into a drilling machine rack. After all, you do not need their entire height for the normal operation of such a device, but only a small space of the screw.

To do this, you just need to slightly modify the lifting lever, in which to secure the drill, and the thrust pad.

And here is the video:

You can do it even simpler by rigidly securing the drill to the top of such a jack, and placing a work table on the lever. Do not lower the drill for drilling, but lift the workpiece itself, especially since the lower part of the screw in such jacks is the least worn.

And in general, the same principle can be applied to fairly large and powerful drills, securely fixed in any way on a powerful stand of the future machine. And you can make a small lifting table in the image and likeness of what is shown in the video:

Or use a small diamond-shaped car jack for the same purpose, providing it with a reliable base and replacing the upper stop with a working platform with a vise or a prism.

Moreover, both the first and second can be made removable, and in long time intervals between drilling work the jack itself can be used for its intended purpose.

More powerful drill press designs

And yet, when we talk about a drilling machine, we mean something more thorough than described in the previous section, and the material for such devices should be metal, even if we are talking about very small machines for low-power power tools, like this one:

And even such a primitive design significantly expands the capabilities of a hand drill. But how to make an almost full-fledged drilling machine with your own hands, without using complex technical solutions for this? Of the simplest, the most reliable design seems to us to be this:

Its biggest disadvantage is the ability to freely rotate the holder, and with it the drill, around the stand, but if instead round pipes If you use square or rectangular ones, this drawback will be eliminated. The main thing: very carefully select the size of the gaps between the stand and the movable bushing of the drill holder frame.

Slightly different, but no more complicated technical solution To feed the tool to the part in which drilling is being done, it was carried out by a home craftsman from the video:

In conclusion, about choosing a drill

If you are just planning to select a specific drill model with the possibility of using it in conjunction with the device, the designs of which we described above, then:

1. Give preference to a tool with a power of at least 1 kW.

2. Choose a model with a removable handle, secured with a circular clip around the girth. They have a convenient wide cylindrical part on the body for mounting in a holder.

3. Choose a tool that has multiple speeds or smooth speed control.

4. The button on your drill must have a lock in the on position.

5. It is better to connect the drill on the stand to the network through a socket or extension cord that has a power button, and firmly fix it on the frame in a place convenient for emergency shutdown.

Dear readers, if you have any questions, please ask them using the form below. We will be glad to communicate with you;)

Having your own drilling machine at home is the dream of any craftsman. The most popular designs are made from a hand drill. But this option has a drawback - if necessary, use a drill, like independent instrument– you have to disassemble the machine.

However, there are a number of solutions for manufacturing a drilling machine without the use of ready-made power tools.

Powerful steering rack drilling machine

For production you will need:

steering rack from a passenger car, with dismantled amplifier elements. Of course, used, but preferably not too loose;
Several steel angles and profiles different sizes;
Steel sheet 2-3 mm for making a frame. You can select suitable ready-made spare parts for old large household appliances;
Drill chuck;
Electric motor and pulleys with belt. Perfect option– from Soviet;
Bearings are in good condition;
Access to welding machine and a lathe.

The most important part is the axle with the pulley. Turned on a lathe. In this embodiment, the cartridge mount is threaded, so a corresponding thread is cut on the lower part of the shaft.

For fastening, 4 bearings are used, 2 regular and 2 thrust. The pulley is used from the same washing machine.

From suitable corners we assemble a carriage on which the working shaft and engine will be attached. We pay special attention to the placement of support surfaces for thrust bearings. The load must be distributed evenly, otherwise one of the bearings will wear out faster.

The frame is welded from a 4 mm steel plate and similar corners. A supporting rod made of a metal profile is welded strictly vertically.

We make 6 holes on the horizontal surface for attaching a vice or support stand. Nuts are welded on the reverse side.

Using powerful clamps, the steering rack is installed on the profile. Installation is carried out once, with strict control of vertical movement. At this stage, a decision is made on which side the steering wheel will be on - for the left or right hand.

The fact is that the direction of rotation of the rack mechanism is somewhat unusual for those who have worked on a classic drilling machine.

The carriage with a cartridge and a bracket for the engine is additionally supported by two bearings on a profile rod. This is done to compensate for the steering rack play.

Install two bearings on the carriage

We assemble the mechanism and check the vertical movement. If necessary, we adjust it by placing washers under the rail fastenings.

IMPORTANT! If the direction of movement of the chuck is different from vertical, the drills will always break.

The steering wheel is made of 10 mm steel rod. For aesthetics, the knobs can be turned. The carriage travel is 160 mm, which is sufficient for most drilling jobs.

For safety, a thin metal protective cover must be installed around the drive belt pulley. You can use an old saucepan of a suitable size.

In a separate box we assemble the engine control unit. There is no need to invent anything; the speed controller is left over from the washing machine. This option provides reverse rotation, which adds functionality, especially when cutting threads or milling work.

We install the motor on the carriage. On one side there is a hinged suspension, on the other there is a pin, a belt tension regulator. Considering the age of the washing machine, it is better to replace the V-shaped drive belt with a new one; at the same time, the distance between the pulleys can be set to a more convenient one.

After setup and final assembly, coat the metal parts with paint, and the homemade drilling machine is ready for work.

To secure the workpiece, you can use a vice or a stand, which is made for the specific dimensions of the machine.

IMPORTANT! The metal housing must be grounded.

The video shows a homemade drilling machine, a demonstration of working on metal and wood.

Popular: Characteristics construction hair dryer, how diverse are they?

Compact drilling machine

Homemade machine for metal does not have to be large and powerful. Most jobs can be done on a small benchtop fixture.

compact, homemade drilling machine

The tool is made entirely of metal blanks, except for the electric motor and fasteners. All structural elements are made using a CNC milling machine and lathe. If you do not have access to machines, you can pick up the components at a furniture fittings store.

Step-by-step assembly instructions

The frame is made of plexiglass 20-30 mm thick, the base is two-layer. The bottom layer is attached to the table (workbench); on the top layer we provide space for installing the heel under the column.
The heel and the column itself were purchased at a furniture fittings store.
The support sleeve is made using lathe, and finalized by milling. A solid brass nut is installed at the rear to adjust the vertical position of the carriage. The bushing is fixed to the column using a locking screw.
The spindle plate is made using milling machine with CNC. Don’t let the manufacturing technology scare you; this same part can easily be made using a drill and file. The plate is mounted on a support sleeve.
A bracket for the engine with grooves for longitudinal movement is installed on top. This is necessary to tension the drive belt and move it along the pulleys when changing the rotation speed. The bracket is manufactured similarly to the spindle plate.
The motor used is asynchronous, with a power of 60 W. The capacitor starting unit is made in a separate box.
The spindle plate, together with the motor, moves vertically using a lead screw, the mechanism is visible in the photo, the element is optional, but adds convenience.
The spindle consists of a housing with bearings and a shaft on which a chuck is mounted using a Morse taper.
spindle after turning
The spindle body is installed in a sleeve along which it will move vertically when drilling.
Movement is carried out using a lever in which a longitudinal groove is cut.
A pulley with variable diameters is placed on top to adjust the rotation speed and torque.
A similar design, only inverted, is placed on the drive motor shaft. By moving the belt from one pulley to another, you can easily achieve the required rotation speed.
We assemble the structure and check its functionality. The drive belt can be round or flat, depending on which pulleys you use.
Initially table machine was created for drilling printed circuit boards, but was later modernized as more universal. To drill holes at any angle, we made a homemade 3D coordinate vise for a drilling machine.
The design consists of a coordinate plate machined on the same CNC router and a vice, also made by hand.

We looked at ways to make a drilling machine from scrap materials. There are many options for execution. You can make a frame from a photographic enlarger or use the mechanism of an old microscope. The principle of operation will not change from this.

The main condition is reliable working surface with a plate or vice, and a mechanism for moving the spindle vertically. The presence of backlash in the mechanism and overall comfort in operation depend on the accuracy of manufacturing.

The video shows a homemade drilling machine from an old photographic enlarger. We took a tripod and mount to work.