Y-Axis Motor Relocation Bracket for large NEMA-17 motors on the Ender 3 v1

Attention: A Variant of This Model Is Now Available With A Belt Tensioner.

Y-Axis Motor Relocation Bracket for large NEMA-17 motors on the Ender 3 v1

Modeled to accommodate the vertically oriented 2040 extrusion and v-roller movement of a stock, original Ender 3.

[DISCLAIMER] While I successfully printed an earlier revision of this bracket which serves my needs, I've since made untested changes to the model based on that experience. If you choose to use this mod, keep in mind you're alpha-testing these changes. Your feedback would be greatly appreciated.

This part is designed to accomplish the following on an original Ender 3:

- Provide clearance between the Y-Axis stepper motor and bed-adjustment knobs.

- Create a level, parallel belt path from the printer bed.

- Maintain (approximately) the same Y-endstop position

In addition, the design is optimized to:

- Interface snugly with the Ender 3's v-slot extrusions (you might need a hammer)

- Be printable with minimal supports (see slicer recommendations)

- Use Ruthex threaded inserts instead of direct-threading into plastic wherever possible.

Parts Needed:

Hardware:

Note:

Quantity:

GT2 Belt, 6mm width (nominal)

Buy at least 1M to be cut to length

GT2 Pulley 20t, 5mm Bore

Mounted to motor shaft

1

GT2 Idlers 20t, 5mm Bore

Toothed and/or smooth acceptable

2

M5 Machine Screw, Countersunk

Bracket to 2040 V-slot extrusion

2

M5 x 30 Machine Screw, Countersunk

Pulley axles

2

M3 x 8 Machine Screw, Countersunk

Brackets A & B to sleeve mount + ¼ motor mount

9

M3 x 20 Machine Screw, Countersunk

¾ Motor mount

3

M2.5 x 6 button head (reuse)

Y-Endstop mount to Bracket B & Sleeve

2

M5 Threaded Bushing (Ruthex)