Chris Caswell Log

Nov 14

• CC simple extruder.png

  Simple Extruder work in progress https://github.com/3DCentral/OSE/blob/master/SimpleExtruder.FCStd

• 

  Extruder motor bracket - FreeCAD -File:ExtruderMotorBracket.FCStd

• 

  Extruder Active Cooling and Sensor Mount File:ExtruderActiveCoolingAndSensor.FCStd

• 

  Spring tensioner - FreeCAD -File:SpringTensioner.FCStd

• Cc heat sink block jig

  Jig to cut the heat sink - FreeCAD -File:HeaterBlockJig.FCStd

Nov 1 - Nov 7

Work on Simple Extruder -- Cut/drill/tapped aluminum heat sink block. FreeCADed a jig for alignment (also WIP) - I think the same could be done with heater block.

I bought packs of all the hardware for the universal axis build hoping that I could use the same screws for this - but I am not sure this will be possible.

Spring tensioner needs still most work, the bearing from that is pictured is obviously not going to work...

I have come around to horizontal tool mount; I do feel like it will be more compact and stable. I think could be as simple as 3 holes and wing nuts.. focusing on full functioning of simple extruder first.

Edit: Nov 8 -- updated version of spring tensioner and extruder motor bracket

• 

  Simple Extruder work in progress

• 

  Extruder motor bracket - FreeCAD -File:ExtruderMotorBracket.FCStd

• 

  Spring tensioner - FreeCAD -File:SpringTensioner.FCStd

• 

  Jig to cut the heat sink - FreeCAD -File:HeaterBlockJig.FCStd

• 

  Jig to cut the heat sink

• 

  Hardware choices - grooved bearing, grooved hobbed bolt

• 

  Volcano heater block

Oct 25 - Oct 31

After pulling many a hair out trying to make modifications to existing carriage file (every version I could find), have given up and began to just re-CAD from scratch. As proof of concept, made universal tool mount mods to carriage in Blender, but as a back-up I'm doing a super simplified mechanism as well in FreeCAD.

For Simple Extruder, I also started from scratch to build a replacement for the extruder spring base bracket that will also include wire org for the quick attach wiring, and a place for the toolhead mount. This should work for vertical or horizontal mounting, whatever we decide. . Also got trip details planned and tickets purchased for Nov 8 - 23

• 

  Simple Extruder Spring Base Bracket, Wire org and toolhead mount - FreeCAD -File:ExtruderMotorBracket.FCStd

• 

  Simple Extruder - extruder mount, wire org bringing to the point of quick disconnect

• 

  Simple Mount Option - size:nullkb - FreeCAD -File:SimpleMount cc312019.FCStd

• 

  Quick swap mount - STL-File:Cc dev uta mount 31OCT2019.stl

Oct 20 - Oct 24

Working on Simple Extruder and Universal Toolhead Mount. Note also that D3D_Simple#Part_Library has more.

• 

  Simple Extruder Spring Base Bracket - size:nullkb - FreeCAD -File:Simpleextruderspringbasebracket chriscommit.fcstd

• 

  Universal Toolhead Attachment - size:nullkb - FreeCAD -code

• 

  Working through FreeCAD - Export issue - even trying to compile from the base files I pulled from this - Universal_CNC_Axis#Universal_Axis_-_Working_Document. FreeCAD file - File:D3D Universal Carriage v1910.fcstd

• 

  UTA dev - Forked from Ferdi and was able to export. Got one side of the holes exporting properly, but don't know what issues on the other side - showing an error, but fully constrained code

Tue Oct 9, 2019

edit

First Conversation with Marcin

• Runs 3D Central - http://www.3dcentralva.com/
• He and Bro doing it.
• https://certification.oshwa.org/us000038.html
• https://www.thingiverse.com/thing:674179
• https://opensource.com/article/19/6/hardware-music
• https://www.thingiverse.com/thing:242087 - the source with parts
• Everything about new skills, fundamental change in economy - supply chain, production. Local production.
• Microfactory concept - manufacturing locally. Technologically - close - socially - far.
• "Waste and drag of intellectual property. And Competitive Waste"
• 3D Brooklyn -
• E-nable - build a hand - http://enablingthefuture.org/upper-limb-prosthetics/
• https://www.youtube.com/channel/UCxkd2FJltPA2vwofdKxn-cw
• OS culture - 10
• Printed Solid - another guy in Delaware - Matt Gorton - quit Printed Solid.
• Hackerspace down the street -
• Technical and social, but also economic -
• Environmental - climate change - from inefficient production.

About

• Founder of 3D Central - http://www.3dcentralva.com/
• Currently working on developing the STEAM_Camp_Team