I see I didn't add any of the pictures of what I had been doing except the movie of the rope....that didn't work out. After just a few minuets of moving back and forth the rope was already wearing and stretching. Not likely to work for very long. Ordered some timing belts. Now to try to make some gears.

wooden repstrap

The current work is drawn in a lot of detail using Google's Sketchup 7. Here's a link to the latest drawing.

Click the picture to go to my Picasa web album. The triangle shape of the mendel was dropped because the width of the skate x-axis limited the amount of vertical movement on the z-axis. The box shape gives plenty of room for the x-axis. I only used one 8 foot 1x6 for the box.

reprap

This album has some earlier pictures where I was building the triangle box. It was cute. Just limited the height available.

From reprap

The latest picture is of the Box mendel wannabe. No name yet. I just have it posed there. The motors are hooked up but the controllers aren't yet. Still have to work on the top where the z-axis is just clamped and held up with some scrap wood.

From wooden repstrap

I first draw what I plan to do using Google's Sketchup 7. The current drawing is very detailed. If you have sketchup you can download the latest drawing.