I would like to build a Cherry Pi III “ish” delta printer. I will use many of the parts and idea from this forum. And this thingiverse page.

• 5/22/2015
  • Printed Airtripper Bowden Extruder BSP Edition
    • http://youtu.be/ziopiy626Cs Here is a timelapse of these parts
  • Printed 4x Mini V Wheel Carriage for OpenBuild Extrusions
    • Chose to print 4, so I'd have a spare, and because it lined up nicely on the plate (probably a wasted part)
  • Aluminum Extrusion, and Mini V-Wheel kits showed arrived from OpenBuild
  • Tested AstroBox / AstroPrint. My thoughts are to currently avoid this
    • The setup and web ui were very nice.
    • It doesn't support streaming video which is a deal breaker.
    • It can talk to your machine from the cloud, no obvious way to turn that off
    • Raspberry Pi camera is not supported
• 5/21/2015 Some parts started to arrive, such as stepper motors and some screws and nuts.
• 5/20/2015 3D printed parts for base.

• 5/19/2015 Tried acetone vapor bath just fro the heck of it.

• 5/18/2015 Disc's for spool printed.

• 5/18/2015 Start of the Cherry Pi III project
  • Ordered Many Many parts online most were sourced from eBay, Amazon, or openbuilds.com

Sourcing a few parts have been difficult

• Magnetic balls
  • http://www.magnet4less.com/ need to figure out what to order

Extruder: Tim recomended the Airtripper Bowden Extruder BSP Edition

I like this Lightweight end effector plate for Delta But it would need various modifications depending on what we attach to it.

Interesting ideas

• http://www.spiderbot.eu/en/technology/tss-three-sphere-system.html

the adjustment you need to make for size of parts (once you have your Z correct) is the delta rod length. You can use Rich's M666 command for that. The formula is (measured length/specified length) x delta rod length = new delta rod length

tips… fan motor not spinning If you rotate the magnets you will find a 'sweet spot' where they don't cause this issue. I had the same problem on the original Cherry Pi.

Slicing

Andy: I use 0.3mm layer height and 33% in fill on virtually all my printed parts. The effector, which is the only ABS part, I print at 0.2mm layer height.

I have been using slic3r with a .3mm layer height and a 20% infill. I've been printing all parts in ABS

Notes: It appears a different size carriage will be needed for the v-slot extrusions: Mini V Wheel Carriage for OpenBuild Extrusions

http://forums.reprap.org/read.php?178,361141,page=17 This page here has someones build log where we can see how it's assembled