====== PrintrBot Jr ======

^ QR-ID    |           |
^ Navn  | PrintrBot Jr | 
^ Kort beskr.    | 3D-printer |
^ Indehaver | HAL9k |
^ Tovholder | mchro, jbr |
^ Tilladt brug | Some hacking allowed, introduktion til 3D printer spørg på slack |

We have a PrintrBot Jr. Adjustments to the config is currently ongoing, to get it into a more usable state.

Maybe good quick reference:
http://www.instructables.com/files/orig/F7Q/XII2/HD4VF40M/F7QXII2HD4VF40M.pdf

===== Improvements to be made =====
A list of improvements that would make the printer even more awesome.

Things to print:
  * Z-axis screw holder: http://www.thingiverse.com/thing:78023 mchro has openscad file for parametric hex nut size
  * Fan duct - new fan mount?
  * New Z-axis holder. http://www.thingiverse.com/thing:64738 mchro has openscad file for parametric spring size
  * Filament guide for extruder: http://www.thingiverse.com/thing:35799
  * X-axis tensioner: http://www.thingiverse.com/thing:82388 or other variant?


==== Drive Train Belt - DONE! ====
http://hardwired.cc/?p=335

Upgrade belts to GT2.

Needs:
  * 1m x GT2 Timing Belt (http://3dnielsen.dk/mekanik/107-gt2-timong-belt-pr-1-meter.html )
  * 2 x GT2 Timing Pulley (http://3dnielsen.dk/mekanik/85-gt2-timing-pulleys-for-reprap.html )
Various:
  * A couple of extra ball bearings (http://3dnielsen.dk/lm8uu/15-lm8uu.html )
  * Motor dæmpere (http://3dnielsen.dk/nema-17-motor/110-motor-daemper-laser-skaret-1stk.html )

==== Standard M8 Z-Axis - DONE! ====
http://www.thingiverse.com/thing:64738

Needs:
  * M8 threaded rod (http://biltema.dk/da/Byggeri/Befastelser/Gevindstang/Gevindstang-rustfri/Gevindstang-rustfri-19336/ ?)
  * M8 brass hex nut (messingmøtrik)
  * Diverse

Also, Z-axis screw holder:
http://www.thingiverse.com/thing:82896
==== Heated Bed - IN PROGRESS ====
A PCB-Milled heatbed.
  * http://www.thingiverse.com/thing:15082
  * http://www.reprap.org/wiki/Heated_Bed#Milled_PCB_as_a_heating_Element
  * Maybe: http://www.thingiverse.com/thing:63039
  * Needs: Double-sided PCB, 3mm glass

==== Alternative: Acrylic Bed ====
A cheaper/simpler alternative might be an acrylic bed, see http://hardwired.cc/?p=335

==== Various improvements ====

http://hardwired.cc/?p=335

New (extra) gears, better drivetrain.

==== Bowden Extruder - DONE! ====
These are for 1.75mm filament
http://www.thingiverse.com/thing:90335
http://www.thingiverse.com/thing:96178

This one is for 3mm filament
http://www.thingiverse.com/thing:66337

Maybe shop at
http://www.fittings.dk/
  * J50000604	Teflon Tube 50m · PTFE, 6/4
  * EC80K-0614	Push-in hex Nipple · BR, 6 × 1/4"