Stage 06 - Gantry

Take the remaining 1.4M of GT2 Timing Belt and feed it into the Y-Carriage as shown in the second image.

Make sure the loop has no turns in it and the teeth are facing inwards through out.

Fix an M4 x 12mm bolt with M4 nyloc nut as shown.

Do not tighten all the way as we'll be needing to pull the belt tight later.

Fasten two M5 x 8mm and M5 T-Nuts onto the Y-Idler.

Do not fasten all the way down.

Later versions of the kit do not include in this specific Idler part, instead you should use one of the extrusion brackets instead.

Assemble the Y-Idler:

M5 x 25mm Bolt

M5 Spacer

M5 15mm Washer

M5 Washer

Bearing - 685ZZ

Fix the Idler Assembly onto the Y-Idler bracket with an M5 Nyloc Nut - Match the orientation as in the second photo.

Make sure that after tightening the bearing can still spin.

Fix the Y-Idler assembly onto the end of the gantry beam.

The Y-Idler assembly should be fixed onto the same side as the endstop.

Make sure that the 15mm washers are pressing against the end of the beam.

Begin by laying down the gantry and tool carriage assembly like shown in the first image.

Bring the rollers up to the gantry beam making sure to trap the belt loop in the grooves of the beam with teeth facing inwards.

Push the Tool Carriage onto the gantry beam.

As you slide the tool carriage onto the gantry beam the belt should loop itself around the Idler pulley bearing.

Make sure that the belt is tucked into the grooves between the rollers and gantry beam.

You may need to adjust the eccentric spacers on the carriage if it's not sliding on.

Drop onto the other side of the gantry a pulley onto the Y-Motor shaft. Match the orientation of the pulley in the image.

Loop the other end of the belt onto the pulley.

Make sure that the belt runs through the grooves of the gantry beam.

Pull the loose ends of the belt tight.

The teeth of the belt should catch on the bolts head holding the tension temporarily.

If you find it slipping way too much, tighten the M4 bolt a little more and pull the belt again, pulling the belt with the pliers will allow you to get a higher tension.

Use a pair of pliers to hold the Nyloc nut as shown in the second image and tighten down the bolt.

Slide the pulley up to the end of the motors shaft.

Secure the pulley by tightening the set screws

Make sure that one of the set screws is being tightened against the flat of the motor shaft.

Postpone this until Stage 7 Step 18 - Y-Idler install.

Loosen the bolts holding the the Y-Idler assmebly to the gantry beam.

Use a screw driver or allen key as a lever to pull the idler away from the end of the beam.

Hold the tension and tighten down the M5 bolts.

Rotate the Eccentric Spacers with a pair of pliers.

Tighten until there is no wobble on the Carriage.

Proforge 2S: Postpone this step until after Stage 7 Step 18 - Y-Idler install.

Proforge 2: Do this step now. Cut away the excess belt from the carriage.

Fix an M5 x 8mm bolt with a T-Nut onto the end of the gantry beam to act a stopper for the Tool Carriage to prevent it from accidentally rolling off.

Push the tool carriage out up to the stopper.

Push two cable ties into the Z-Axis Bracket holes as shown and secure the cables to it.

Wrap cable ties around both of the cables from the Z-Axis bracket to the tool carriage.

Trim away any excess form the cable ties.