Mendel Y-axis
Mechanical: Overview | Mendel solid model files | Procurement | Preparation of materials | Assembly notes | Extruder | X-axis | Z-axis | Y-axis | Circuit boards | Frame | Squaring the axes
You may find the assembly data sheet useful during assembly.
Contents
Motor bracket
BOM
Total # of assemblies: 1
Name | Qty/assembly | Total Qty | Type |
drive-pulley_3off.par | 1 | 1 | RP |
y-motor-bracket_1off.par | 1 | 1 | RP |
opto-endstop-v2-1-pcb.par | 1 | 1 | PCB |
m3-capx20.par | 5 | 5 | Fastener |
m3-nut.par | 2 | 2 | Fastener |
m3-nylock.par | 1 | 1 | Fastener |
m3-washer.par | 8 | 8 | Fastener |
624-bearing.par | 2 | 2 | Bearing |
m4-nylock.par | 2 | 2 | Fastener |
m4-washer.par | 6 | 6 | Fastener |
m4x40-cap.par | 2 | 2 | Fastener |
m5-mudguard-washer.par | 2 | 2 | Fastener |
stepper-motor-nema17-fl42sth47-1684A-01.par | 1 | 1 | Motor |
Printed parts
Assembly
Optoswitch pcb is spaced with two M3 nuts.
Idler bracket
BOM
Total # of assemblies: 1
Name | Qty/assembly | Total Qty | Type |
y-idler-bracket_1off.par | 1 | 1 | RP |
624-bearing.par | 2 | 2 | Bearing |
m4-nylock.par | 2 | 2 | Fastener |
m4-washer.par | 6 | 6 | Fastener |
m4x40-cap.par | 2 | 2 | Fastener |
m5-mudguard-washer.par | 2 | 2 | Fastener |
Printed parts
Assembly
Y bearing 360
Two pairs needed, one with a ‘left’ outer and the other with a ‘right’ outer.
BOM
Total # of assemblies: 2
Name | Qty/assembly | Total Qty | Type |
y-bearing-360-inner_2off.par | 1 | 2 | RP |
y-bearing-360-outer-_1off.par | 1 | 2 | RP |
624-bearing.par | 4 | 8 | Bearing |
m4-nylock.par | 6 | 12 | Fastener |
m4-washer.par | 26 | 52 | Fastener |
m4x40-cap.par | 6 | 12 | Fastener |
Printed parts
Assembly
Before this assembly it's important to understand the key mechanical concepts of how the axes work. If you haven't already, check this video out:
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Once assembled, clamp the ‘A’ and ‘B’ bolts tight. Set the 360° fit by inserting a ø8 mm bar (e.g. Y bar) into the bearing assembly. Initially, there should be about a half-mm gap between it and the bottom two bearings when the bar is running on the top two. If this is tight, add extra washers either side of the top two bearings; if it is too lose take some away.
Tighten/slacken the two lower adjuster bolts (‘C’) until all the bearings just touch the rod and smooth running is achieved. Ensure all bearings rotate when the bar is slid up and down.
Y bearing 180
Two pairs needed, one with a ‘left’ outer and the other with a ‘right’ outer.
BOM
Total # of assemblies: 2
Name | Qty/assembly | Total Qty | Type |
y-bearing-180-inner_2off.par | 1 | 2 | RP |
y-bearing-180-outer-_1off.par | 1 | 2 | RP |
624-bearing.par | 2 | 4 | Bearing |
m4-nylock.par | 2 | 4 | Fastener |
m4-washer.par | 24 | 48 | Fastener |
m4x40-cap.par | 2 | 4 | Fastener |
Printed parts
Assembly
5 washer stack either side of bearing. Once assembled, insert a ø 8 mm bar in between the bearings and clamp the slotted bolt to achieve a smooth run. Ensure all bearings rotate when the bar is slid up and down.
Chassis
BOM
Total # of assemblies: 1
Name | Qty/assembly | Total Qty | Type |
purge-plate.par | 1 | 1 | Sheet |
y-chassis.par | 1 | 1 | Sheet Image DXF |
y-flag.par | 1 | 1 | Thin sheet |
y-belt-clamp_2off.par | 2 | 2 | RP |
y-bearing-180-left.asm | 1 | 1 | Assembly |
y-bearing-180-right.asm | 1 | 1 | Assembly |
y-bearing-360-left.asm | 1 | 1 | Assembly |
y-bearing-360-right.asm | 1 | 1 | Assembly |
m3-capx20.par | 4 | 4 | Fastener |
m3-nut.par | 4 | 4 | Fastener |
m3-washer.par | 4 | 4 | Fastener |
m4-nylock.par | 20 | 20 | Fastener |
m4-washer.par | 40 | 40 | Fastener |
m4x16-cap.par | 4 | 4 | Fastener |
m4x40-cap.par | 16 | 16 | Fastener |
Printed parts
Assembly
Ensure all bolt heads sit on the underside of the chassis and bolt shanks point up. This guarantees that the chassis assembly will not collide with any of the frame structure it moves in.
Put the Y-axis ground rods through the bearings before tightening them. This ensures everything is aligned.
Bed will be attached later.
Back to Mendel mechanical construction root.