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

Y-Axis Motor Relocation Bracket & Tensioner 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.

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.

- Integrate a belt tensioner into the motor mount

- 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

M5 X 35 Machine Screw, Hex Head OR M5 X 40 Button Head + Jam Nut

Tensioner Shuttle to Tension Block/Knob

1

M3 x 8 Machine Screw, Countersunk

Brackets A & B to sleeve mount + ¼ motor mount

7

M3 x 20 Machine Screw, Countersunk

¾ Motor mount

3

M3 x 30 Machine Screw, Countersunk

Tension block to Brackets A & B