RUG/Pennsylvania/State College/Printers/PSU Unit White

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PSU Unit White.jpg
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Color: White
Extruder: .35mm
Temperature: Hot Tip: 205C Bed: 55C
Design: Open Hybrid Mendel
Electronics: RAMPS 1.4
Firmware: Marlin
Operation Status: Thumb down.png


This is the page for the State College Rep Rap User Group's (SCRUG) White 3D printer. The printer was developed, assembled, and is currently operated by students in Penn State's Engineering Design 497J course and members of the 3D printing club. Our goal is to continuously tweak the printer until it is ready for distribution and sale to other departments in the University and local schools and businesses.

This printer is mainly comprised of white frame pieces with a few black pieces. Due to it having a heated bed we use one of ourATX PSU Dev Boards on it.


Date Modification / Problem
12/09/2013 Thermistor is fixed temporarly by placing it under the tape
12/06/2013 Thermistor for the bed is loose and needs to be re-soldered. Currently the thermistor is under a washer on the bed, which gives a fairly accurate bed temperature reading.
12/06/2013 Extruder Gear skipping slightly
09/03/2013 X-Axis pulleys must be changed

PSU Unit White - Current Condition

Print Problems And Solutions

Prints were leaning to one side.
Reattached the Y-axis pulley securely.
Motors were getting very hot.
Adjusted the potentiometers so the motors had just enough power to drive the axis and run the extruder.
Tip temp. read '2511' in Repsnapper.
Reconnected thermocouple more securely.
Extruder motor gear slipping.
Super-glued gear to motor shaft.
The extruder bolt was mis-alinged so the filament was not feeding.
Adjusted the spacing of the extruder bolt with washers.

Assorted Prints


<videoflash type="youtube">NUG-33G0zaU?hd=1</videoflash>


This machine was assembled by:

  • Nicholas Whalen
  • Michael Testa

This machine was formerly operated by:

  • Di Wang
  • Kunal Bansal

This machine is currently operated by:

State College RepRap Users Group
S.C.R.U.G. Main · The Make Space · Intercollegiate Future Society · Wiki Help
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