Open Hardware
Assembly Instructions

Gather parts:

• Flexystruder body (PP-MP0200)

• 65mm of PTFE tubing (HD-TB0006)

Tools needed:

• Drill press

• 6.5mm drill bit

• 3.5mm drill bit

• 8mm drill bit

• 3mm thick metal rod

• Precision knife

Instructions:

Starting at the bottom of the body, drill the out hole, that runs the length of the body, using the 6.5mm drill bit.

Press a 65mm long piece of PTFE tubing into the drilled hole through the bottom. The PTFE tubing needs to be flush with the indented hole.

Note orientation of body.

Drill the hobbed bolt hole out using the 8mm drill bit.

Drill the PTFE tubing out using the 3.5mm drill bit through the bottom of the body.

Slide the 3mm rod into the PTFE tubing.

Clean out the flashing in the hobbed bolt hole using the precision knife.

Gather parts

• 1x- Large herringbone, black (assembly)

• 1x- extruder washer (PP-GP0060)

• 2x- 608 bearing (HD-MS0282)

• 3x- M8 washer (HD-WA0006)

• 1x- 0.5mm shim (HD-WA0008)

• 1x- M8 nyloc nut (HD-NT0002)

Tools needed:

• 13mm wrench

• Precision knife

Instructions:

Install two M8 washers and one 0.5mm shim onto the hobbed bolt that is inserted into the large herringbone hear.

Lay the assembly onto its face. Install the extruder washer into the bearing pocket Install a 608 bearing on top of the extruder washer.

Install the large herringbone gear onto the flexystruder body by inserting the hobbed bolt through the bearing and body.

Flip the assembly over so the threaded portion of the hobbed bolt is visible. Install the second 608 bearing onto he hobbed bolt. Press the bearing down so that it sits in the bearing pocket.

Install a M8 washer on top of the bearing. Install the M8 nyloc nut onto the threaded portion of the hobbed bolt.

Tighten the M8 nut using the 13mm wrench. The washer under the nut should not move freely or with slight force applied.

Cut off the excess PTFE tubing sticking out of the top.

Gather parts

• 1x- Nema 17 motor (EL-MT0001)

• 3x- M3x12 SHCS (HD-BT0039)

• 3x- M3 washer (HD-WA0001)

• 1x- Body assembly

Tools needed:

• 2.5mm hex driver

Instructions:

Mount the motor to the body (note the orientation of the motor and harness)

Place the M3x12 SHCS with black oxide in the three holes that line up with the tapped holes in the motor.

Note: the large gear and the small gear need to be mated together in a way that there is easy rotation but won't have any free movement known as “slap” between the gear teeth. To test for proper alignment of gears - tighten your screws down to 3 in/lbs, Hold the small gear firmly with your finger and thumb, and try to move the large gear back and forth to see if there is any small movement between the teeth of the gears. Rotate the large gear ¼ turn and repeat this process multiple times to ensure alignment. If there is movement the small gear and large gear need to be moved closer to each other. To do this you need loosen the M3 screws ¼ turn counter-clockwise and push the motor closer to the body. Repeat until you have desired the results, tighten screws once the fit is correct.) Torque to 3in*lbs

Gather parts

• 4x- M3x12 SHCS (HD-BT0039)

• 1x- Extruder fan mount (assembly)

• 1x- 40mm 24v fan (assembly)

Tools needed:

• 2.5mm hex driver

Instructions:

Align the hole in the corners of the 24v fan with the threaded inserts in the fan mount. Note the fans orientation on the fan mount and where the wires are coming off the fan.

Fasten the fan to the fan mount with the M3x12 screws. Torque to 5in*lbs

Gather parts

• M2x6 SHCS (HD-BT0230)

• Micro blower harness (assembly)

Tools needed:

• 1.5mm hex driver

Instructions:

Insert the M2x6 screw into the top right corner of the micro blower. Align the screw with the threaded insert on the front of the extruder mount. Fasten the micro blower down to the extruder mount by torquing the M2x6 screw to 2in*lbs.

Gather parts

• Cable tie

Instructions:

Adjust the harnesses so they rest against the left of the motor.

Cable tie the harnesses and the motor harness together halfway between the motor and the connector. Clip off excess cable tie