Various 3D Printer Projects

We've had the opportunity to put together some 3D printers. Here are some notes on that .

Aluminatus Trinity One Printers:

These are big mostly 80/20 (40-4030?) channel aluminum beasts.

Parts List:

Number	Name	Description
1	Base	All electronics, 2 Power supplies, Controler, 3 Motors, etc...
1	Display / Control Board	Allows independent control of printer, W/ Ribbon cables
2?	Plastic mounting parts	For above
1	Top Plate	With holes and slots
24	M5x10 Screws	Button Head Cap Screws, for above
8	M5 T-Slot Nuts	For slots in short sides of base, for above
1	Power inlet with Switch	For above
8	Triangle Blocks	For vertical 80/20 frame
16	M5x10 Screws	Socket Head Cap Screws
16	M5 T-Slot Nuts	For above
2	Triangular Plates	To attach vertical 80/20
10	M5x10 Screws	Socket Head Cap Screws, to attach above
10	M5 T-Slot Nuts	For above
3	80/20 Slotted x 21"	Posts to hold Gantry
2	Lead Screws 15.75"	With Nuts and Torsion dampeners
8	Set Screws	For above
1	Lead Screw 16.5"	for Gantry
1	80/20 Slotted x 16.75""	To mount the above on
2	Vertical Slide Rods	For Gantry 21.5" long
2	Thin cork disks	For above
4	Plastic Clamp Ends	For above
8	M5-10 Screws	Cap Screws, for above
4	M3-14 Screws	CS, For above
4	M3 Nylocks	For above
2	Plastic Bushing Holders	To mount Gantry to Vertical Slide Rods
8	M5-10 Screws	CS For above
2	Plastic Spacers	For abvoe
1	Bed	Frame for build bed
2	Spacer Blocks	To hold bed above top plate
4?	M6 Screws	For above
4	Plastic Bed Corners	To hold glass on bed
1	Hot End
1	Plastic HE Mount	For above
1	Metal retaining plate	For Hot End
2	M5-16 CS	and nuts for above
1	Extruder Motor	36JX30K5.18G or 36JX30K27G
1	Pinch Bearing	For above + Short Shaft
1	Hobbed Drive wheel	For above

Notes:

• When printing parts try to include T-slot nut cage forks so they don't slide away when you remove the screw. Perhaps with small barbs so they are pulled tight.
• If any steppers are skipping steps you might want to adjust the Pololu driver board's current limit. As described in the links below.
• CS for bottom plastic plates, are M5-7.
• Other part numbers for Extruder motors are:
  • 36JX30K5.18G/42STH38-1684A, 1.8 Degree, 2.8V, 1.68A 1:5.18 Gear Ratio
  • 36JX30K27G..., 1:27 Gear Ratio
  • 36JX30K100G..., 1:100 Gear Ratio
• Hot End Cooling fan: AV-F4010LS
  
  • 24V 0.08A 4-6? CFM

URLS:

• http://reprap.org/wiki/Aluminatus_TrinityOne_Software_Electronics
• http://reprap.org/wiki/Pololu_stepper_driver_board
• http://www.discountsteel.com/items/5052_Aluminum_Plate.cfm?item_id=125&size_no=1
  • 5 mm aluminum sheet
  • I think it's 3/16 though
    

Adjusting the Vertical Slide rods:

• Mount clamps in the base with locktight, but leave M3 screws lose.
• Slide plastic gantry mounts with bushings on the slide rods
• Thread the lead screws in also, add retainers and holding screws.
• Add Claps to top of rods
• Slide T-Slot nuts into top piece for the clamps.
• Loosely mount motors
• Slide rods into base clamps and connect motors to torsion dampeners.
• Loosely fasten in upper clamps.
• Tighten all four M3 bolts on clamps
• Measure distance to 80/20 at bottom of slide rods.
• Tighten top clamp screws without locktight enough so you can still move the clamps a bit
• Adjust top of rods to same distance and tighten one clamp screw till its firm.
• Add locktight to the other one and re-thread and tighten.
• Remeasure to double check distance.
• Add locktight to the first one check distance and tighten
• Repeat for the other rod.

Adjusting the lead screws and motor mountings:

Random Notes:

• Some Stepper driver board: 6B6560-3V5

-- Main.ClifCox - 25 Apr 2016