Sunday, 23 November 2014

Putting bits and pieces together

At FabLab with plenty of time and space. Let's see what I can throw together.

X Idler Assembly:

Requires 2x624 ball bearings, which are 13x5x4mm. My own are much bigger, FabLab has some that are 13x6x5. Also need two linear bearings LM8UU - they should be 15mm wide and 24mm long, but the chamber for them measures 26x19mm, not exactly a snug fit.
The normal place for bolts and nuts didn't have the M3 20mm I need a lot of, but I got help to find the secret stash. Now I have plenty.

X Motor Assembly

Missing polypropylene strips, will leave the clamps open for now.

I realize now my motors aren't NEMA17, but some odd ducks recycled from elsewhere, maybe NEMA23-ish. Add to shopping list.

Don't have the 15 pin IDC either, nor 1.2m ribbon cable. Can't get very far on this right now.

Y Idler Assembly

Also missing the right ball bearings for this. Attaching screws.

Y Motor Assembly

Obviously don't have the motor. Got the M3x8mm screws

Y Carriage Assembly

No Dibond nor linear bearings yet. The bearing holders don't have nut traps in sturdy, I guess they take regular nuts with washers galore. Surprisingly not star washers. I added the bolts that I could, using 20mm in the anchors since I don't have 16mm at hand.

X Carriage Fan Assembly

Don't have a fan here. I might have one at home?

X Carriage Assembly

More missing linear bearings. Odd, there are M4 nut traps but no M4 nuts or bolts specified in either the BOM or the manual. Ah, those come later. Attached the pieces loosely for now.

PSU Assembly

Want to print this part of the manual in color to be sure I get the wires right. Plus, I'm missing the resistors.

Can't do the assembly of subassemblies meaningfully. All that's left to do today is the extruder connection PCB - yay soldering!

Things I may need to pay FabLab for

1662mm of 34 way ribbon cable.

Shopping list

4x624 bearings
15 way D IDC socket
M3 star washers
Polypropylene strip 501 x 25 x 0.5mm and 410 x 18 x 0.5mm
1 Dibond sheet 216x216x3mm
M3x16mm bolts
Fan 60mmx15mm (I think I have one at home)
THS15 Alu clad 10R
THS15 Alu clad 4R7
2 smooth rods 10mmx403mm
PCB bed 214x214mm
Glass sheet 214x202x2mm
4 hex male/female pillar M3x20mm
Polypropylene strip 278x33x0.5mm
Belt T5 6mmx680mm
Belt T5 6mmx905mm
Smooth rod 10x290mm
Smooth rod 10x432mm
2 brass nuts M8
2 smooth rods 10x336mm
2 threaded rod 8x296mm
1 micro SD card (no, I don't have any randomly lying around!)
MicroSD to USB adapter

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