3D Printer - Rostock MAX v3

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3D Printer - Rostock MAX v3
Name Rostock MAX v3 3D Printer
Zone Fab Lab

Owner Paul Frick
Make Model SeeMeCNC Rostock MAX
Part Number v3
Date Acquired
Storage Location Northeast corner
Authorization Required No
Status Running
Value 1500

Power Requirements 120VAC 7A
Other References



  • Please have some basic understanding of 3D printers and/or read the manual before use.
  • Please donate $0.10 per cubic centimeter or per gram of ABS (or $0.20 per cubic centimeter or per gram of PETG), whether or not the print succeeded.
  • If anything breaks or you think something broke, let me or the zone coordinator know via slack or email list, as I'd rather know I need to fix something than find out next I go to print.


General Use

On a convenient computer...

  • Somehow convert file to STL format
  • Open CURA
  • File->Clear platform
  • File->Load model file
  • Check that infill, perimeters, etc. are set the way you want.
  • At the top of the CURA window, there is a readout of how much filament will be consumed, both in linear meters and in cubic centimeters. Since ABS has a density roughly equal to 1 gm/cm^3, you can assume that your print will be roughly this much plastic in grams. Plan payment accordingly.
  • File->Save gcode (it has already been generated while you weren't looking)
  • Copy the gcode file you just saved to the Rostock SD card

On the printer itself...

  • Put the SD card into the Rostock (on the clear LCD panel)
  • Turn the printer on via the power switch next to the display (just to the right on of the display)
  • Select file to print, printer will start automatically
  • Note that the fan on the moving platform will turn on and off automatically; you do not have to do anything special to make sure it does.
  • Wait impatiently for your print to finish.
  • Wait some more.
  • And a little more.
  • Once the print is done, wait for the bed to reach ~40C, and forcefully pry the print off the bed with your hands. DO NOT USE A METAL SCRAPER--THE BED IS GLASS. If needed, rotate the six blue clips out of the way and remove the glass, please put the glass back after removing your print. I've found that placing the removed bed in an acetone bath helps dissolve the remaining purple glue stick, use at your own risk and note this was only tested on PLA, your results may vary.
  • Toss the recommended donation based on the final mass of your print (based on the scale, not the CURA readout) into the bin labeled for the purpose.

CURA Settings

Printer Settings

  • DeltaBot
  • Bed X-dir = 280mm
  • Bed Y-dir = 280mm
  • Height = 360mm

Settings as of CURA 15.04.3

  • Layer height: 0.2
  • Shell Thickness: 1.4
  • Enable Retraction: Yes
  • Bottom/Top Thickness: 1.4
  • Print Speed: 40mm/s (30mm/s to 50mm/s work best)
  • Travel Speed: 300mm/s
  • Filament Diameter: 1.75 (Assuming Inland PLA)
  • Nozzle Size: 0.7

Leave all others default.

MatterControl Settings

Error Recovery

  • If anything goes wrong with the print, turn off the machine with its power switch.
  • Please do contribute to the filament fund for the mass you did end up with.
  • Take notes (and pictures!) on what failed, and send them to Amelia Meyer or Paul Frick.

Filament Change

  • If you want to change the filament that is in the machine, set the Extruder temperature to 230C through the machine's LCD interface, and wait for it to heat up.
  • Hold the red lever on the extruder down, and firmly pull up on the filament, drawing it up and out of the hotend and Bowden cable.
  • Neatly spool up the filament back onto its source spool, lock the end into the spool side, and grab the new spool.
  • Feed the filament through the top plate of the machine, and into the extruder--make sure to hold down the red lever on the extruder.
  • Once you have the filament in the Bowden cable, keep pushing the filament through until you see filament of the new color extruded out of the hotend.
  • Go print!

PLA Settings

  • Hot End: 210C
  • Bed: 60C

Use Purple glue stick as needed for adhesion.

ABS Settings

  • Hot End: 240C
  • Bed: 80C

Use Purple glue stick as needed for adhesion. Also prayer and incantations work to keep ABS from warping.

PETG Settings

  • Hot End: 250C
  • Bed: 70C

If in doubt, check http://seemecnc.com.


I've discovered a 'def' error that results from the part fans (the three little fans around the nozzle) cooling the bed faster than it can heat, which makes the printer controller think there's an error somewhere which causes it to go into safe mode. I have not yet figured a permanent solution to this, so right now the best course of action is to either monitor the print and adjust the fan speed via the menu settings if the bed starts to cool down during the print, or else set Max fan speed to 25% in the gcode via cura or any other slicer you may prefer. Any troubleshooting or advice on this matter would be greatly appreciated.

The printer currently has a dual extruder setup through the single print nozzle. Last I checked the firmware was setup to support this, so anyone who knows how to print with dual extruders can try it, just set the slicer so that both extruders are in the same location. The printer extrudes filament through a y-splitter and can retract past the y-splitter to swap filaments. Of course, both filaments will need to have a similar melt profile. Also note that the extruders are labeled incorrectly; T0 is actually extruder 1, and T1 is actually extruder 0.

Maintenance Info