Rostock Mini Modifications
by Luke321, published
Makergear Filament Drive adapted for bowden extrusion with pneufits: thingiverse.com/thing:63674
(Custom fan ducts for cooling hot end and printed material) this was a dead end
now the fans are mounted conventioanlly
Different Carriage modified for Traxxas 5347 u-joints
Derived from thingiverse.com/thing:30611
Delta-platfrom modifiered for Traxxas 5347 u-joints
Idler ends and ball bearings from original Rostock
Megatronics 1.0 Board with added rostock kinematics
Heated print bed from qu-bd
using the great Airtripper's Pocket Filament Reel Rollers: thingiverse.com/thing:21435
and the great Wing addition to the M3 nut by Proksis: thingiverse.com/thing:19812
and for my power supply: thingiverse.com/thing:40377
summetj great fan duct for cooling the nozzle and the part: thingiverse.com/thing:56865
There is a Video of the printing Mini (Rostock mini 3D printer printing Twisted Kochflake Vase): youtube.com/watch?v=YYT68bvQm9M
Short time lapse:
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So I ask (and Im sure its been asked before). This IS a RoStock... the only changes are the upper lower plates and the towers.. I mean the plastics for the rostock are the same aside of the ball joint carriages or are they scaled down?
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It is importand to fix the endstop-trigger M3 screws with glue. Bowden extrusion needs patient fine tuning. Also fix the Bowden Gear, it got loose and so retraction was completely useless resulting in very ugly prints.
I had a crash with the original fan design so I uploaded a new mount.
My BOM ist uploaded
I am now using a J-Head MKV extruder and getting much better results with it, seems like the heating chamber in the makergear extruder is to big for bowden extrusion.
The J-Head reduces ooze and has no curling at all.
Use the Repetier Firmware, it has a native support for rostock printers, set the acceleration to 1500 for all axes, and jerk to 15mm/s to prevent lost steps.
Set the start and end speed for the extruder to 100mm/s.
I also strongly recommend the use of Repetier-Host + Skeinforge for slicing, the dwindle feature works wonders fighting ooze.
I uploaded my basic skeinforge settings just copy the folder under C:usersyourusername, temperature must be controlled manuelly, same goes for cooling fans.
I also recommend using a mixture of 3 parts water and 1 part wood glue on the glas for much better adhesion of the first layer, it can be easily removed with a sponge and warm water.
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