timing belt measurement machine

# Belt Measurement Machine

Just what is says - a machine to measure out precise amounts of timing belt.

https://www.instagram.com/p/BkBHme7HyrU/

I have to cut precise lengths of timing belt for use in my Makelangelo polargraph robot. By hand is pretty good... but it could be exact and save a few calibration steps later. So I made a machine that measures exactly the length of belt requested.

It's open hardware, so feel free to remix it with an automated cutter.

# Assembly

Print:
3x guide rings (turn it over to avoid support material)
4x leg
1x guide 1
1x guide 2

All parts were printed on a Prusa MK3. bearings were press-fit tight.

Laser cut one table.dxf. The short side should be 375mm.

I used
three M3x15 screws and
six M3 nuts
to hold the RUMBA board on the board.

I used
four M3x10 screws
four M3x20 standoffs
four M3 nuts
to hold the LCD panel on the board.

The RUMBA control board has one A4988 Polulu driver to move the stepper motor.