Rosalind-bill-of-materials

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Bill of materials

Printed parts

  • y axis clamps
  • angle fasteners

Printer Frame

  • Four pieces of T-slot aluminium profile length: 400.
  • Eight pieces of T-slot aluminium profile length: 360.

Enclosure

  • A sheet of acrylic 360 x 360Z x 3 mm (for the back).
  • A piece of plywood 400 x 400 mm (for the bottom).
  • 360 mm self-adhesive led strip.

Vitamins

Rods (usually steel)

  • Two rods Φ8, length: 380.
  • Two rods Φ8, length: 352.
  • 2 (Two for now) rods Φ8, length: 390.

Bed

  • Two pieces of 20 mm wide T-slot aluminium profile length: 250.
  • 1 of 20 mm wide T-slot aluminium profile length: 133.97
  • One piece of 2 mm thick glass, size: 214 mm x 214 mm.
  • One piece of 5 mm thick wood size, size: 257.665 mm x 214 mm.
  • One 12V pcb heating element, size: 214 mm x 214 mm.
  • Two springs 0.8x6x20 (make sure the springs fit your bed screws; if you need to go bigger, go!).
  • One 8 mm leadscrew of length 300 mm.
  • One 8 mm leadscrew nut.
  • Four bulldog clips thick enough to clamp 15 mm.
  • One thermistor compatible with Marlin :electronics:

Visit the following link to check all supported thermistors https://github.com/MarlinFirmware/Marlin/blob/1.1.x/Marlin/Configuration.h#L261

Screws and Bolts

  • Enough M5 in all lengths between 8 and 20mm (around 100 in total).
  • Enough M3 in all lengths between 10 and 50mm (around 200 in total).

Rest

  • Six 3 mm bore, gt2, timing idlers for 6mm belt width (20 teeth).
  • Two 3 mm bore, gt2, timing idlers for 6mm belt width (toothless) or four 623zz flanged bearings.
  • Two 5mm, gt2, timing pulley for 6 mm belt width (20 teeth).
  • Two 5x8 mm flexible couplers.
  • 4 LM8UU linear bearings or 1 of them if you use the long variant LMxLUU (z-axis).
  • Four LM8UU (y-axis) (two for the long variant).
  • Four LM8LUU (x-axis) (two for the long variant).
  • One 608ZZ bearing.
  • One extruder drive hobbed pulley MK8.
  • 400 mm bowden (PTFE) tube.
  • One brass PTFE tube push-fit connector.
  • Three end-stop microswitches.
  • One e3d extruder assembly.
    • One 30Watt heating element.
    • One 100K Ohm thermistor cartridge (semitec 104gt2).
    • One 30mm fan.
    • One heatsink.
    • One aluminium heating block.
    • One 0.3mm brass nozzle.
    • One stainless steel heat break.
    • One silicone sock.
  • One 40mm, 12V fan.

Electronics

  • One arduino MEGA (a small 8-bit, single-purpose computer).
  • Four motor drivers.
  • Three NEMA17 motors (minimum 20 Ncm torque).
  • One NEMA17 motor (75Ncm torque) (this is for extruder drive, direct; for a geared extruder drives 40Ncm should be enough).
  • One ramps shield.
  • One LED power supply unit (12V).
  • A USB extension cable (to connect the 3D printer to a computer).
  • Cables* (we need lots. we need to research on required gauge. we will need all colors. - 22awg 0,34mm).
  • 4pimN-4pinM cables for extension (enough, of sufficient length).
  • 3pimN-3pinM cables for extension (enough, of sufficient length).
  • 2pimN-2pinM cables for extension (enough, of sufficient length).
  • One RePraDiscount smart controller.

Consumables

  • A spool of PETG filament.

Improvements

  • 24V power supply
  • 2 mosfets
  • one power plug
  • one power switch
  • one raspberry
  • one camera
  • one SD card
  • a KVM (no redundant USB cable)