Linear Rail Upgrade

Use a 2mm metal drill to create 3 holes on either side of the platform.

Place one of the 40cm rails on the platform, 4mm +/-1mm from the edge.

Use a pencil to mark out where you are going to drill.

Secure the rail as shown with three M2 x 10mm bolts and M2 Nyloc Nuts

Be very careful with the carriage, either secure or remove them very carefully. If they fall off and are hit, the ball bearings inside them will escape!

Use a 3mm bit to drill three holes into the gantry.

The rail should be fitted 5mm from the top edge of the gantry.

Secure with M3 x 12mm Cap and M3 Nyloc Nut

Align the thicker 15mm rail to the centre of the pillar and create marks for three holes.

Drill three 3mm holes into the pillar.

Secure the rail with three M3 x 12mm cap bolts and M3 nyloc nuts.

Re-install the z-pillar when done.

Using a soldering iron push the threaded inserts into the 3D printed parts as shown.

M4 Threaded Insert

Note that the inserts on the Tool Carriage part need to protrude out on the side shown.

Begin by installing the two 3D printed parts to the Base with two M4 x 6mm Bolts.

Next line up the linear rail carriages on the platform with the holes on the 3d printed brackets.

Secure the platform to the brackets using M2 x 6mm cap bolts.

Double check you have the correct orientation, the heated bed cable relief mount should be in the top left.

A heated bed is required for this upgrade to properly work.

The heated bed needs to be raised 5mm before it can be installed. To do this we replace the 10mm stand-offs with 15mm ones.

With the 15mm stand-offs installed, re-mount the heated bed.

Re-install the belt by first wrapping it around the pulley on the motor and then feeding it in through the rear bracket and around the bearings.

You will need to use a pen to guide the belt around the bearings.

Secure the belt to the bolts on the ends of the platform.

Re-attach the Pi-cam if you have that upgrade.

Fix the gantry carriage to the Z-Rail as shown with four M3 x 8mm cap head bolts.

Note the orientation of the carriage. The side with the small insets should point towards the rear of the printer.

Re-attach the the lead screw to the gantry.

Next fix the coupling to the z-motor shaft.

Finally, fix the gantry to the carriage with four M4 x 6mm bolts.

You can also now reattach the end stop and cables.

Fix the 3D printed tool carriage to the gantry rail.

M3 x 6mm button head

Replace the M3 x 25mm bolts on the metal tool carriage with the two M3 x 35mm bolts.

Mount the metal tool carriage onto the 3D printed one with three M4 x 6mm bolts.

Finally, re-attach the belt and the extruder.