Dr Boo's Parameterised FSR Groove Effector for Delta Printers by DrBoo

Last crawled date: 3 years ago

HEY, STOP! DO NOT ADD THIS THING. READ THE NEXT PARAGRAPH AND USE THAT THING INSTEAD!
I've fixed a number of things in this design, so please review http://www.thingiverse.com/thing:520580 for a better version. I wouldn't be using THIS version myself. Use the one linked above; it has many improvments!
This is an effector assembly for a Delta printer, provided in a highly configurable OpenSCAD format (also STL). It's a bit of a mashup and original design - see comments in SCAD file. It uses force sensitive resistors FSR402 in the effector itself to allow for z-probing via an interesting spring-mount of the print head. I'm still working on this so it's more an idea than a proven design. I'm pretty sure it will work fine though some sizes might need adjusting here and there.
The effector used when I started this work is available at http://www.thingiverse.com/thing:273232 (author: Nathan Matthews).
The idea of placing FSR on the printer assembly (as opposed to under the printer plate) was originally implemented at http://www.thingiverse.com/thing:386146 (author: Ed Lep) however I have modified the concept somewhat by placing the FSRs on the effector, and restricting rotational and lateral movement of the 'plunger'
This is my first foray into OpenSCAD. I have not assembled this yet, and only printed preliminary prototypes. I'm happy to answer questions and make fixes.
*** In the exploded view, the bottom part is upside down! I'll fix this later but the part is perfectly fine.
Update: Looks like I don't quite have the pieces positioned on the ground in the "PRINT THIS" part; instead, print the components individually; effector, plunger, and clamps.