I continued this work tonight and was very excited with the result. I started off tonight by drawing a 1000 step by 1000 step square and measuring it. It turned out to be 81mm wide / tall. This means that I am getting a higher resolution than expected! I should be able to print parts to a 0.081mm resolution! Wow!
Next I decided to show off and write a short script to scribe with my repstrap. Here is a picture of "onshoulders" being written at 13mm and 25mm. I am using a BIC pen I got at a Marriott... so a better pen would obviously give a better result.
And here is a video of my repstrap in scribe action. I brought up the size to 100mm so that the motions would show up better on camera.
onshoulders, written by a repstrap from gavilan on Vimeo.
Now I need to draw my attention to the Z axis and see if I can rig up some tests for it. Then it's build time for an extruder, and I still need to pick up some HDPE.