Universal CNC Axis

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Basics

  • The Universal Axis is a modular and scalable CNC axis which can be used to create cartesian CNC machines. The core of the axis is belt drive and linear motion rods where carriages are pulled on the rods. The axis system may be used for the X, Y, and Z axes of cartesian robot system. The system is scalable to any size and number of axes. Rotary axes may also be used with this system THe system uses a combination of 3D printed parts, metal plates, and belt-driven shafts. Applications include 3D printers, CNC torch tables, heavy duty CNC machines, and many other production machines.
  • Both the belts, drive pulleys, and linear bearings may be 3D printed. This remains as future work.

Used For

5/16" Universal Axis

There are 14 unique parts in the Universal Axis:

Limits

We have built up to a 2 Meter Tall 3D Printer and a 1 cubic meter 3D printer using the 8 mm (5/16") Universal Axis:

1" Universal Axis

See 1" Universal Axis

2" Universal Axis

See 2" Universal Axis.

Example of CNC Circuit Mill Configuration, 5/16" Axis

See full documentation at D3D CNC Circuit Mill

Intro

The following is a 5/16" or 8 mm version of the universal CNC axis described at http://opensourceecology.org/3d-printer-construction-set-workshop/

Larger axes will also be built, up to 2" for heavy duty CNC machining, with plastic parts sandwiched between metal plate as a plastic/metal composite structure. See calculations for beam deflection at Heavy_Duty_CNC_Construction_Set.

Universal Axis - Working Document

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Concept

WebGL

Source

Build

Carriage

From Michel Dhoore in Belgium in 2016. Early prototype using larger carriage pieces for larger machines.

Carriage.jpg

Frame

Axis

BOM

edit

Order

3dpcsamazon.jpg

3dpcsmcmaster.jpg

Frame Parts

Frame3dpcs.jpg

FreeCAD and STL Files for Printing

Originals from 2016 by Michel Dhoore

This file has the carriage belt tensioners, not shown below.

Universal Axis with Magnet Holes 2017

HintLightbulb.png Hint: Under development Feb 2017

Fabrication

  • Print time - 3hr27min for the idler end -

8mmidlerprint.jpg

One Axis Attached to Frame

See Also

Communications

Useful Links