3 - Positron V3.2 - Z Drive

Z Drive Main Body x1 (Remember to remove the printed support.)

Z Drive Outer Housing x1

Z Motor Bracket x1

Install M3x4x5 heatset inserts into the indicated holes of the printed part.

Install one M2.5x3x4 heatset into the hole of the main body as shown in the picture.

Install M3x4x5 heatset inserts into the holes as indicated in the picture.

Install one M3x4x5 heatset insert into the hole of the motor bracket.

Install an MF148ZZ bearing into the hole of the main body.

Insert the planetary carrier shaft into the hole.

Place MR85ZZ bearings onto the feet of the planetary carrier shaft.

Add a planetary gear onto each bearing.

Put the planetary gearbox cover on.

Attach the Z motor to the planetary gearbox cover.

The motor cable should go through the slot.

Install the 5x6mm pulley into the shaft. Please remember to leave a small gap so that the pulley doesn't rub on the printed part.

Install one M3x3 set screw to the shaft on the flat side and install one set screw into another hole of the pulley. (The set screws should be pre-applied with Threadlocker.)

Add an MR85ZZ bearing onto the pulley.

Insert an M3x20 BHCS screw through the hole of the main body and thread two washers and an idler in the indicated order.

Route the 6mm belt as shown in the pictures. We will wire the belt to the Z column in a later step.

Attach the outer housing to the main body and fasten the M3x20 BHCS screw.

Attach the motor bracket to the motor as shown in the picture.

The motor cable should go as shown in the picture. Route it before you secure the whole part with screws. (This picture is just to show how the wire goes. The printed part is not the most up-to-date one.)

Secure the printed parts with below screws. Use an M3x25 BHCS screw in the upper left hole (tapped directly into the hole). Use an M3x20 BHCS screw in the bottom middle hole (tapped directly into the hole. Use an M3x8 BHCS screw in the bottom right hole.