For proper operation of drilling equipment, several additional devices are needed that will facilitate the work of the master and increase his efficiency. In particular, a special working surface is needed to equip the machine, which increases the productivity of the device. Good coordinate table It’s not so easy to do it yourself, but it is possible. Experienced specialist will assemble it, saving a lot of money on the purchase of factory equipment.

A coordinate table is an additional structure to a milling, drilling metal or woodworking machine. Thanks to it, you can increase equipment productivity by reducing the labor intensity of the parts processing process. The workpiece is simply fixed on the working surface and can move smoothly along a given path.

Homemade coordinate tables have the following advantages:

• small dimensions;
• simple design form;
• controlled mechanically;
• used in handicraft production.

Their main advantage is saving money. Making such a design from scratch will cost much less than buying a factory-made manipulator. Of course, there are a number of difficulties when self-production. A suitable drawing is needed, according to which the required trajectory of the workpiece will be set. If there is no someone else’s experience, then you will have to create it yourself, but any error when drawing the diagram will make itself felt during work. In addition, a homemade table is only suitable for small-scale production, since the simplest homemade mechanisms wear out much faster than factory ones.

For mass production of parts and their processing, only factory model coordinate table.

Simple design form

Small dimensions

Mechanical control

Saving money

Design selection

When choosing a design, you need to decide on its dimensions. If equipment that processes a part will be installed on a coordinate table, then its dimensions must be taken into account. If it is needed to fix the workpiece, it is mounted on the frame of the drilling equipment, and its width and length will be about 35 x 35 cm.

Tables are also distinguished by the type of fastening:

1. When making a coordinate table with your own hands, the structure is equipped with a mechanical fastener. This is the simplest solution in terms of implementation, but it has a number of disadvantages. For example, it often leads to processing errors, and there is a risk of deformation of the product surface.
2. Vacuum fastening is considered the best option. It helps ensure precise positioning of the workpiece on horizontal plane. When an air stream is supplied into the gap between the tabletop and the workpiece, the pressure in this area changes. Thanks to this, it is possible to perform processing more efficiently (without mechanical damage to the product).
3. Fastening under the weight of the workpiece is suitable if when using drilling machine heavy parts need to be processed. Due to its mass, the base product remains in the same place even with strong impact.

The functionality of the table depends on the number of degrees of freedom:

1. If there is only one, then the workpiece can only be moved in one direction (this is a good option for processing flat products).
2. If there are two degrees, it becomes possible to move the workpiece along X and Y coordinates.
3. If there are three of them, then the part can move up, down and along the Z coordinate.

If the table is made for home production and processing of parts, then using two degrees of freedom is more than enough.

When making a coordinate table with your own hands, it is important to decide for what purpose it will be used. The parameters of the manipulator are selected in accordance with the dimensions, weight and shape of future workpieces. To work with various parts from metal and wood, a complex multifunctional mechanism is made. Usually, home craftsmen have enough capabilities of a small-sized table with mechanical fasteners and two degrees of freedom.

Mechanical

Vacuum

Fastening under the weight of the workpiece

Materials and mechanisms of structural elements

The durability of the structure and cost depend on the material of the product. You should immediately decide what type of table it will be - steel, aluminum or cast iron. The second important step is to decide on the control mechanism. You should also decide whether the drive should be mechanical or electric. The third step is to select guides. This will affect the processing accuracy of the workpieces.

Base

The following materials are used for the base:

1. Cast iron. Expensive, heavy material turns out to be very fragile in operation, so it is used extremely rarely in the production of a drilling machine.
2. Steel. The material is the most highly durable and durable. Its main drawback is the cost. Not every master will be able to purchase it.
3. Aluminum. Light and soft material is easier to work with. It is not as expensive as steel. But it is not suitable for making a large-sized table, since it will not withstand the heavy weight of large workpieces. This is an ideal option for creating mini-equipment.

If the master processes metal workpieces, then it is better to make the table from steel or cast iron. True, you should immediately evaluate your costs: perhaps purchasing a ready-made manipulator will cost less than expensive hardware. An aluminum tabletop is suitable for working with wood or plastic.

Cast iron

Steel

Aluminum

Drive unit

The drive is a control mechanism with which the coordinate table will change its position. It happens:

1. Mechanical. The easiest way is to make it yourself. It allows you to significantly reduce the cost of the table. The basis is a conventional screw or belt drive - this is enough to set up small-scale production. Mechanics are not capable of providing 100% accuracy, and this is its clear drawback.
2. Electric. It guarantees zero error when performing work operations, but it is very difficult to do it yourself. Often found in factory models of tables. If there is no own power source near the workplace, this option will not work.

Models with CNC (computer numerical control) should be included in a separate category of coordinate tables. This is high-tech equipment that is used by large enterprises for production in huge volumes. Their main advantages: good performance, as well as complete or partial automation of the process. Disadvantages: high cost, such a drive is not suitable for some parts.

Mechanical

Electric

CNC

Guides

The accuracy of the workpiece processing depends on these elements, so they need to be selected correctly. Among those that you can do with your own hands, the following are distinguished:

1. Rail. Rectangular guides are considered structurally more advanced. When using them, lower friction losses are observed and serious errors are avoided. It is possible to connect a lubricant supply system.
2. Cylindrical. Application of guides round shape is fraught with high heating due to friction. They are suitable for machines of the so-called small category, but you will have to lubricate all the mechanisms manually.

The guides are made with a carriage and bearing units. The use of plain bearings will ensure high precision machining of the part. The use of a rolling shaft support will reduce friction and extend the service life of the manipulator.

The rolling bearing can cause noticeable play, which reduces the accuracy of the workpiece.

The carriage is a block of guides (mechanism assembly) that moves directly along them. It can provide increased flange dimensions, which allows it to be mounted on the underside of the table. If it is not there at all, then the carriage is placed on top (threaded method).

Rail guides and carriage

Cylindrical

Moving device

When choosing a moving device, you should answer a number of questions:

1. What should the processing speed be?
2. What positioning accuracy is acceptable when performing work operations.
3. How productive the equipment will be used.

A belt moving device is most often used in the manufacture of homemade coordinate tables. It is cost-effective, but has a number of disadvantages. The belt wears out quite quickly and can also stretch during use. In addition, due to its slippage, the accuracy of the moving element is reduced.

Ball screw drive – more durable and reliable option. Despite the small dimensions of the device, it has a good load capacity, and movement is carried out evenly and with great accuracy. Smooth and almost silent running, as well as high quality surface treatment are not all the advantages of ball screws. However, it also has some disadvantages: high cost and limitations in the speed of rotation of the propeller if its length is more than 150 cm.

Rack and pinion devices provide high speed and accuracy of work, withstand heavy loads, are easy to install and are reliable in operation. The error in rack transmission is extremely low. If their size does not fit, then they undergo a fitting operation.

Belting

Ball screw

Rack and pinion

Step-by-step algorithm for manufacturing a household table with a mechanical drive

To make a coordinate table with the simplest mechanical drive, you must follow the instructions:

1. It is necessary to make the central unit of the table in the form of a cross from metal profiles 20 x 20 cm (2 mm thick). It must ensure the stability of the entire structure, so all parts are welded.
2. On the surface of the finished cross, assemble carriages with a stroke of 94 mm.
3. File the profiles and then insert M10 nuts into them.
4. Using M10 studs, assemble the handles with the bearing assembly.
5. Next, you should weld two U-shaped bases from the corner, and then assemble the entire structure using bolts that were screwed into the previously pressed nuts.
6. Wipe all components, as well as moving parts, with lubricant.
7. The assembled table must be attached to the drilling machine bed.

To protect the lubricated structural elements from chips or other waste when processing the workpiece, it is advisable to lay plywood between the coordinate table and the machine. The dimensions of the finished manipulator will be 35 x 35 cm, and the thickness of the product will be 6.5 cm. It is desirable that the total length of the guides be about 30 cm.

Wipe all components and moving parts with lubricant.

Attach to drill press bed

Video

Coordinate table for drilling machine

I sell a coordinate table for drilling or milling machine. Not silumin, real steel. For a small workshop or garage - an irreplaceable thing! New. Travel along the X and Y axes is 295mm!! Height is only 70mm! By the way - great idea for a gift for a man who is a craftsman!

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Drill stand. Rotary. Analogous to “Proxxon 28600” only half the price. Turns a regular electric drill into a convenient benchtop drilling machine. Thanks to the use of a dovetail with clamping screws and a gear rack to move the carriage, there is absolutely no backlash. The drill holder rotates to any angle from 0 to 90 degrees. for drilling at an angle. There is a drilling depth indicator. When using a coordinate table, you can perform milling work. The massive steel frame ensures stability during operation. Supplied unassembled in cardboard packaging, convenient for transportation. Includes: set of keys, adapter rings, spare spring, instructions in Russian. Drill and vise not included. Drilling depth (carriage stroke): 60mm Landing clamp size: 38 - 43mm Carriage rotation: 0 - 90deg Bed size (steel): 156 x 156mm Rod size: 25 x 400mm Weight: 3400g. Can be used on a SB card.

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Two-axis table. Series: mini machine. Necessary for reliable fixation of the workpiece during drilling or milling. The table is made of cast aluminum with a machined surface, with an adjustable dovetail joint to eliminate play. Has three milled T-shaped grooves. Longitudinal and transverse feed of the workpiece is carried out by flywheels; marks with a scale are marked on the flywheels. A movable ruler helps position the part. In the updated design of the table, two screw clamps have been replaced with more convenient stepped clamps, which are used to fix the workpiece. Instead of clamps, if necessary, you can install a machine vice. The table easily performs its functions and is convenient to use. It is an ideal tool for hobbyists, modellers, and for teaching children in schools, clubs and at home. Characteristics: Work table size: 310 x 90 mm Work table material: Aluminum alloy X-axis travel: 200 mm Y-axis travel: 50 mm Travel pitch (handwheel revolution): 1.25 mm Screw clamp option: Stepped T-slot : 15x8x6 mm Inter-slot distance: 34 mm Weight: 1.6 kg In addition to this table, you can purchase step clamps, a drilling machine, a machine vice, a drill stand from my advertisements. Delivery in Moscow and the regions by cash on delivery by the transport company SDEK (to the door or point of delivery). Payment upon receipt. Pickup from Moscow is possible: Dmitrievskogo Street metro station

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If a craftsman regularly uses drilling tools, it is recommended to provide additional devices for convenience and speed up the work. One of these devices is considered to be a coordinate table, which increases not only productivity, but also the accuracy of product processing. It is not necessary to spend money on a ready-made device; you can make a coordinate table with your own hands from scrap materials.

Internal structure of the coordinate table

The table for the milling machine, on which you can also drill, is a metal base on moving mechanism. The workpiece to be processed is fixed on the table surface. Table clamps are installed of the following type:

• mechanical parts;
• vacuum device;
• due to the own weight of large parts.

If desired, the master can provide 2 or 3 degrees in the coordinate table
freedom. Movements occur only horizontally or, including vertically. The first option is suitable for working with flat products, the second is assembled if we are talking about serious drilling equipment.

A do-it-yourself coordinate table includes one of the drives:

• on a mechanical basis;
• powered by electricity;
• with CNC system.

When assembling a coordinate table, think about the general parameters:

• planned workload;
• desired period of operation;
• heating and cooling.

A clear understanding of what you want to see ready product for a drilling machine, will help you decide on materials and drawings of a homemade mechanism.

DIY coordinate table base

The base is made from different materials. You can prepare cast iron steel sheet, light alloys, which include aluminum, wood, and plastic. The advantages of products whose frame consists of aluminum are:

• light weight;
• simple installation;
• low cost.

A welded steel frame can be used as a base workpiece. But such
the mechanism does not tolerate vibration loads. The master’s task is to remove internal stress through heat treatment.

Assemble the coordinate table with your own hands, following one of two schemes:

• cross drawing - involves the manufacture of a universal device where it is possible to process products complex design(the advantage of such a device is access to the workpiece from three sides);
• portal - used for equipment that drills holes in sheet parts.

How to make your own guides

Guides determine the smooth movement of workpieces and the accuracy of processing. There are two main types of guides: rail format and cylindrical. To improve accuracy and smoothness, a carriage and bearing units are built in. It is better to use plain bearings. Rolling bearings are characterized by play in the supports, although it reduces the friction force.

• equipped with a massive flange used to fix the mechanism to the bottom of the coordinate table;
• Wafer - fastening is the usual option.

Moving device

The easiest way is to make a coordinate table with your own hands, which moves mechanically. If you need increased accuracy and good performance processing parts, they install tables that move due to motors powered by electricity.

The drive may consist of the following types of gears:

• with gear-type wheels and racks;
• belt device;
• ball screw mechanism.

To choose effective option transmission, the master will have to take into account the following parameters:

• the speed at which the base and the part fixed on it move;
• power of the electric motor used;
• desired accuracy of workpiece processing.

In most cases, experts prefer a ball screw, and all thanks to the obvious advantages:

• slight play;
• smooth movement;
• noise performance indicators;
• high resistance to heavy loads.

Among the disadvantages, experts cite the lack of high speed table movement and the high costs of arranging the transmission.

How to save money

If finances are not enough, the master can equip the base with a drive powered by a screw drive. Then you need to be prepared to lubricate the screw mechanism often.

• fragility of belts;
• the ability of belts to stretch;
• high probability of belt breakage;
• accuracy leaves much to be desired.

If you choose a rack and pinion transmission, accuracy and high speed of movement are guaranteed. However, a noticeable backlash is formed.

A step-by-step guide on how to make a coordinate table with your own hands is shown in the video instructions:

The efficiency and accuracy of part processing largely depends on the quality of the machine. A correctly selected mechanism is the key to product compliance with all specified standards and tolerances. An important role in compliance with drilling technology is played by a coordinate table.

Concept and types

The table is a manipulator for fastening the workpiece being processed. Externally, it looks like a plate with the ability to fix the part using:

• mechanical method;
• vacuum method;
• own weight of the workpiece.

Products come with one, two and three degrees of freedom. This means that the feed is carried out along the coordinates X, Y, Z. For drilling flat parts, horizontal movements are sufficient. With a voluminous product or a fixed drill, vertical movement of the table is necessary.

For large industrial drilling installations, long coordinate pads are manufactured. They are equipped with their own mounting frame. Both the part and the processing unit itself are mounted on such a device. The table for small machines is made with fastening to the device or to the surface of the workbench.

To set the table in motion, the design can be:

• mechanical;
• electrical;

The latter type is the most accurate, but the cost of such a device is significant.

Manufacturing of load-bearing elements

The materials for making the table frame are:

Latest material used for circuits with light loads and low torque forces. This option is acceptable when drilling wood or plastic.

pulled aluminum profile frame, mounted on threaded connections. This creates a solid foundation. Advantages of the material:

• low weight;
• accessibility;
• ease of installation.

Many companies produce ready-made kits for assembling tables with your own hands.

Drilling machine with cross table

Cast base structures are often cast iron. Their weight is significant, but the forces they can withstand are quite high. Such tables are used for large production volumes. Installation is carried out on the foundation, permanently.

A welded frame is the best option for both production capacity, and for home use. The main thing is to reduce the welding stresses of the metal by releasing it when welding with your own hands. Otherwise, when the engine picks up speed, cracks may appear in the frame.

For drilling machines, two table technological schemes are used:

Drilling machine with gantry table

The first is used for bulk workpieces. It makes it possible to carry out other manipulations on the fixed workpiece. With this arrangement, access to the part is provided from three sides.

The portal pattern is used when drilling flat products. It is easier to manufacture and has increased processing accuracy.

Selection of guides

The accuracy of processing depends on the correct selection and fastening of the table surface movement guides. Rail and cylindrical elements are used. They are produced with a carriage superstructure and mounted bearing units.

The choice of table guide type depends on the type of drive. The part in question works to overcome the friction force. If high precision in movement is required, it is better to choose plain bearings. Rolling bearings reduce friction but create a lot of play.

Depending on the type of carriage, the guides are:

• with an enlarged flange, for fastening to the bottom of the table;
• Wafer type for conventional mounting to top threaded holes.

If you make it yourself, you can order rails with a stainless steel coating. They have an increased service life and longer abrasion resistance.

Types of gears for table movement

With small desktop machine The table is moved mechanically. But the greater the speed, accuracy and performance required, the more carefully the type of drive is selected. Electric motors are mainly used.

The essence of the unit’s operation is to convert the rotational work of the engine into translational motion of the table plane. There are three types of transmissions:

• rack and pinion;
• belt;
• ball screw.

The choice of node type is made based on:

• workpiece movement speed;
• machine engine power;
• required processing accuracy.

Machining accuracy at various transfer units

Advantages of Ball Screw:

• possibility of high-precision processing;
• small backlash;
• smooth movement of the table;
• quiet operation;
• ability to take heavy loads.

Ball Screw Drawing

A significant disadvantage is the limited feed speed. The decrease in speed is especially noticeable when the propeller length is more than 1500 mm. Approximate speed calculation: for a 1 kW drive, the rotation speed is 3000 rpm. With a screw pitch of 10 mm, the transmission speed is 0.5 m/sec. In this case, 3 m will be covered in 6 seconds.

Another disadvantage is the high cost. You can reduce the cost of the project by using a connection with a screw and nut. In this case, it is necessary to ensure constant lubrication of the unit.

In new generation drilling machines, lubrication of the movable mechanisms of the coordinate surface is carried out automatically. Temperature control sensors are built into the device important details.

The rack and pinion transmission ensures high speed and sufficient accuracy. The disadvantage is the high degree of play when transmitting forces from the drive.

Installing a belt is the most budget-friendly and common method when creating a table with your own hands. The low cost of belt drive and feed speed up to 1 m/s is compensated by the following disadvantages:

• rapid wear;
• loss of tension due to stretching;
• possibility of breakage during acceleration;
• low accuracy of work.

When purchasing a coordinate table for drilling or do-it-yourself installation, you must take into account the working conditions. The ratio of all mechanisms according to parameters: workload, service life, heating and cooling will give good result at work. This is especially important when making it yourself from scrap materials.

Drawings and examples of homemade models

Review and comparison of factory models

KT70 KT150 G-5757 KRS-475

stanokgid.ru

How to make a coordinate table with your own hands

The quality of processing often depends on the correct location of all structural elements. Choosing the right mechanism in accordance with all standards and tolerances is quite difficult. An important element The design of metal processing equipment can be called a coordinate table. It is used when processing on drilling and milling equipment for precise positioning of the workpiece during processing.

Homemade coordinate table

Hardware Definition

A coordinate table is a manipulator that is used to secure the workpiece being processed. There are several options for machine tables:

1. vacuum fastening method - used quite rarely due to the complexity of the design;
2. the mechanical type of fastening is simple to implement, you can do it yourself quickly;
3. fastening due to the weight of the workpiece. When using a drilling machine, large workpieces can be processed. Due to its weight, the supported part remains in place even under strong impacts.

There are positioning with one, two, three degrees of freedom. This point determines that the workpiece can be fed along three different coordinates. When drilling a flat product, it is enough to move it along just one horizontal plane.

We can roughly distinguish two main types:

1. Large dimensions. A large coordinate table is created taking into account the fact that the equipment itself, as well as the workpiece, will be installed on it.
2. Small coordinate table overall dimensions mounted on the equipment frame.

There are several control mechanisms by which the coordinate table changes its position:

1. Mechanical drive is quite common. You can make it for a drilling machine with your own hands to set up small-scale production.
2. An electric drive is installed quite often for a drilling machine. Making it yourself is quite difficult, since you need to maintain high precision during manufacturing. For automatic movement, the coordinate table must have its own power source.
3. Another separate group can be called a mechanism that operates using numerical control.

You can make a small coordinate table with a mechanical drive with your own hands.

Production of homemade versions

When manufacturing, you should initially select the material of manufacture:

1. Cast iron is an expensive, heavy, brittle material. It is quite rarely used in the production of a drilling machine.
2. Steel is a strong, hard, durable metal, which also has a fairly high cost. Steel can be called the most attractive material.
3. Aluminum is a light, fusible, but expensive and soft material. It is quite easy to use in the manufacture of any machine parts. As a rule, mini equipment is created using this alloy.

The above materials are selected for a full or mini machine.

Manufacturing of guides

The accuracy of processing depends on the correct choice of guides. You can make the following designs with your own hands:

1. rail;
2. cylindrical.

They are created with a carriage and bearing units. You can select guides depending on the type of drive. To achieve the most high precision processing uses plain bearings. When using a rolling bearing, friction is significantly reduced and the service life of the device is increased, but significant play appears, which reduces the accuracy of processing.

Rail design

There are two types of guide carriage:

1. with increased flange dimensions, which allows mounting from below the table;
2. the design without a flange is attached from above using the threaded method.

Let us note the point that homemade version execution of the guide should be closed using of stainless steel. Stainless coated steel can withstand impact high humidity for a long time.

Drive types

When creating a small machine, a coordinate table with mechanical feed is often installed. However, there are quite a few types of drives, the selection of which is based on the following criteria:

1. processing speed;
2. positioning accuracy;
3. equipment performance.

In most cases, an electric drive is chosen, during the creation of which a motor is installed.

The essence of this mechanism is to convert rotation into reciprocating motion. The following types of gears are distinguished for the design in question:

1. belt;
2. ball screw;
3. rack and pinion.

When creating a drive, a belt drive is often chosen. A homemade belt-type mechanism is cheaper than others, but the belt quickly wears out and stretches. Also, belt slippage determines the low accuracy of the moving element. All elements of the coordinate steel are connected to each other by welding. In this case, the threaded method of connecting certain parts is also used.

Ball screw

In conclusion, it should be noted that homemade design Suitable exclusively for equipment household use, since it is practically impossible to achieve the accuracy that industrial models have.

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Making your own table for a drilling machine

A coordinate table for a drilling machine helps to make the operation of the unit precise, smoothly move the workpiece to the desired position, and avoid jumps and twisting of the part. The efficiency of working on any type of machine increases significantly when using a coordinate table, especially one made by yourself.

A coordinate table makes drilling faster, easier and more accurate. If a person has a set of tools and materials on hand, such equipment is easy to do independently.

Types and purpose

Tables for drilling machines come in several different types, can be made of different materials and function on different principles. This is a simple fixing device, with the help of which the workpiece is secured in the required position.

X-ray table model

With the help of a table during processing, a part is able to change its position and angle; manipulation allows different types processing without removing or moving the part. The methods for fixing equipment are as follows:

• using vacuum and differential pressure;
• mechanical devices;
• the part is held on the table independently due to its heavy weight.

For amateurs who are planning to make a table for a drilling machine with their own hands, the second fixation option is most suitable.

The workpiece being fixed in different installations has a different number of degrees of freedom - two or three. In the first case, she is able to move only along the X and Y coordinates; in the second, the ability to move up, down or along the Z coordinate is added. For home use, two degrees of freedom is quite enough.

Equipment use

Before starting to operate the coordinate base, the master must study the safety rules, equipment features, as well as the lighting requirements in the room where the work is taking place.

The table is activated in the following ways:

• mechanical movement;
• use of electric drive;
• installation of CNC equipment.

The first or second option, if you implement it yourself, will be the most suitable.

It is worth mentioning separately such design options as Rotary table and cross.

The first one is capable of rotating around its own axis and is the most convenient option if you need to process parts with axial symmetry, round and disc-shaped workpieces.

The cross drill table is more common in everyday use and provides the ability to move the workpiece in two directions: X and Y.

Base material

Before you start creating a device, you need to think about what materials and spare parts to use. Preliminary preparation is necessary so that they can give the future creation the following characteristics:

• Normal working weight so that one person can work with such a table without noticeable difficulty.
• Simplicity and versatility of installation. A good product must fit different types drilling equipment.
• Maximum cost savings on manufacturing. If development turns out to be too expensive, wouldn’t it be easier to buy a ready-made item?

Most often, these requirements are met by the following common and economical options:

• steel;
• metal;
• cast iron;
• aluminum;
• duralumin.

If the table is needed mainly for drilling soft materials (wood, plastic), then aluminum will be the best option. It is extremely light and has sufficient strength.

If you have to work with metals, drill serious parts to a relatively large depth, then you will need something more durable - steel, cast iron, iron. This heavy materials, but the loads they can withstand are impressive.

Guides

Of particular importance in the design of the device being developed are the so-called guides - components along which the table moves in the required directions.

The better they are made, the more accurately the specialist will work on the machine, set the position of the workpiece being processed and the easier it will be to move it to the right place, apply filler materials and perform other necessary actions.

Two types of guides are used: cylindrical type and rail type. It’s difficult to say which of them is more efficient - with high-quality implementation, both options perform well.

To make the sliding of the guides as smooth and accurate as possible, it is necessary to use special carriages and bearings. If the requirements for the accuracy of the equipment are not too high, then rolling bearings are quite suitable, otherwise, plain bearings must be used.

Roller bearings will create a slight amount of play, but for typical applications this is not a major problem.

For smooth sliding of the guides, it is possible to use rolling bearings

When making a product with your own hands, you need to choose the option that is most suitable for future tasks.

Motion transmission mechanism

The most important part of the future device, no matter whether it is a rotary table for a drilling machine or a cross version, is the mechanism for transmitting movement from the control handles to the device.

It is best to make a drive with a mechanical type of movement; they are manually controlled. In this way, specialists can achieve greater accuracy of movements and high quality of work performed.

The components of the motion transmission mechanism are:

• racks and gears, gears;
• belt mechanisms;
• ball screw drives.

Ball Screws

Experts advise choosing the latter type of mechanism, especially when it comes to a cross table; it has many significant advantages:

• extremely small system play;
• the product moves very smoothly, without jerking;
• The ball screw operates quietly;
• under significant workloads it shows high stability.

Experts say that the disadvantage of the mechanism is the inability to achieve high operating speed, but if you are considering a cross table for a drilling machine, then high speed is usually not required.

To save money, the master needs to try to implement belt drives. They are simple and accessible, but have disadvantages:

• low accuracy;
• rapid wear;

As a conclusion, we note that if a person decides to make a table for a drilling machine with his own hands, then there is nothing fundamentally unrealistic about this. A basic set of materials and tools will help you quickly complete the task. The task for the specialist is to choose correct view design and high-quality production of all critical components of the future device.