4 Comments so far

• nophead

  May 25, 2010 at 12:05 pm

   

  Just get broken sound and a still. Any chance of putting it on youtube or vimeo?

   

• Dave

  May 25, 2010 at 1:14 pm

   

  I’ll 2nd the video being funky. Sound’s ok but I’m getting about 0.5fps.

  Anyway.. This sure looks neat but I’m a little worried about destroying my hot end – I’d much rather floss than rebuild. Maybe a little protection can be had by having a repg option that disables forward if the temperature drops below some level..

   

• Ben Rockhold

  May 25, 2010 at 2:59 pm

   

  Seconding the RepG feature mentioned by Dave, a toggle option to turn on/off auto motor shutoff would be great. Having it always on would mean you could never move filament with the heater off, which is less helpful.

   

• murray

  May 26, 2010 at 6:28 pm

   

  Clever test, consistent results with the earlier gear, convincing results with the later. Have you thought about a traction belt or chain? I fool about with motorised bicycles, some of my earlier ones were the same sort of arrangement as the extruders, a cylinder running on the tyre. It’s power-limited and unreliable when the tyre’s wet. I switched to a cogged belt running over three pulleys, the back of the belt riding on the tyre. Spreads the contact area over a 100mm strip of the tyre tread instead of the contact patch of cylinder and tyre. Less wear and tear on the tyre (the filament is analogous) and more traction in the wet than the motor can overcome.