Portable FDM Printer

myminifactory

For a newer and improved version of my own website, visit https://www.designuitinspiratie.nl/3d-printer/draagbare-fdm-3d-printer/. I wanted to build a printer that could be easily transported without getting damaged in the process. The housing is as small as possible while still accommodating standard print dimensions. This one can print 200x200x380mm. To keep it lightweight, the housing is made from 9mm plywood. It's basically a square box with the printer mounted inside. You can make your own housing or frame if you prefer. The housing does have an advantage when printing with ABS, though. Then I wanted this printer to be as fast as possible because there's often not much time to print on site. That's why I used a Bowden setup and a very light X and Y carriage. The vase in the picture was printed at 60mm/s in PLA. I plan to test this printer with higher speeds, but I didn't have the chance yet. The red fan ducts on the side of the nozzle are not my design (RoPa here on Thingiverse: http://www.thingiverse.com/thing:1264477). Because my printers often get connected to polluted mains (there are welding, milling, and grinding machines nearby), I added a simple mains filter. This filter kills most EMF frequencies that could affect the Arduino. The Atmel chip can behave strangely under EMF stress. Normally, I would use a second ferrite coil, but I didn't have one available. For the schematic, please see the picture. Note that the capacitors need to be of X2 and Y2 class so they won't short if they fail. C1 & C2 need to be of class X2. C3 & C4 need to be of class Y2. Also, this filter needs to be connected to a fuse holder. The hinges use M4 x60mm bolts. If you think I forgot something on this list, please let me know. Parts: 1X Arduino Mega 1X Ramps 14 3X Nema 17 stepper motor (such as 3X SHENLI SL42S247A 2,5A or Wantai 42BYGHW811) 2X Nema 17 stepper motor for Z axis with max length of 38mm (such as 42BYGHW208) 1X Hot End (heater, heater block, Heat break and Thermistor 100K) 1X Heat Bed (MK3 Aluminum) & Thermistor 100K & 4 springs 1X spring for Extruder 2X Teflon Tube Holder or wartel (gland nut) 1X Teflon tube (length depends on the height of the z Axis) 1X Power supply 12V 360W and wire for the motors, switches etc. 3X End switch 1X mains power inlet 1X fuse holder 3x 30x30mm fan 1X 80x80mm fan 1X mains switch 1X 12v switch and led strip 1X LED 5mm for back light SD Card slot Wood panel 9mm for the housing Poly carbonate glass plate 2mm Woodscrews 6mm Glue Paint for the housing Bolts & Nuts: For the Heat Bed & Y axis: 33X M3 nut 4X M3 x40mm 4X M3 X20mm 24X M3 x10mm 4X M3 x6mm For the X axis and car: 20X M3 nut 2X M3 x40mm 18X M3 x20mm 4X M3 x6mm For the Z axis: 13X M3 nut 13X M3 X10mm 8X M3 X6mm