Polargraph Drawing Machine

Step 7 Mount your motors - front style

This is way I've come to mount the motors, and it looks a bit untidy, but it is less dependant on the type of your drawing surface - it can be stuck onto anything basically, including walls and other enormous surfaces.

I have attached plans for a motor mount to be lasercut from 3mm thick plywood, but there's nothing clever about it except that it only slots together, so the motory bits can be removed easily, leaving the main mount plates in place.  I have got it on a Ponoko P1 sized piece of board, and you will need two of these cut.

The plans for Der Kritzler include window-mountable servo holders that use suction cups.  That bracket is probably stronger than mine too, but it needs more parts to build it.

Fasten the big plates onto your surface in the top corners.  They should be exactly level.  I use double sided sticky foam tape for more or less everything, but make sure you use plenty because they are fairly heavy, and there is some vibration.

Comments

[sleepybrett]

I've been using 3m 'Command' poster hanging strips to hang my steppers 'front-style'. The kind you remove buy stretching. It takes just a couple of strips to hang the motors securely to a whiteboard type surface. They are very secure and leave no noticeable residue.