Positron V3.2 - Z Column

Z Top Stopper x1

Z PCB Spacer x1

Z Belt Retainer Block x1

Z Rail Alignment Jig x2

Load roll-in nuts into the 1030 extrusion.

Put the linear rail on top of the extrusion and align the preloaded nuts with the holes of the linear rail.

Use alignment jigs to help you poisiton. Install M3x8 SHCS screws and leave them slightly loose in order to adjust them later on.

Insert the M6x23 thumb screw in the first (large) hole to help position the linear and extrusion.

Tighten all the screws and take off the thumb screw. Remember to tighten the screws from the middle outwards.

Put one M4 hexnut on the positon about 78mm from the top edge of the extrusion.

Secure with one M4x6 BHCS screw.

Put an M3x18 FHCS screw through the hole of the Z sliding idler block and secure with a M3 hexnut.

Add a 6mm idler on top of the M3 hex nut and then secure with an M3 nylock nut.

Install a M3x6x5 heatset insert into the hole of the printed Z top stopper

Put the spring into the side slot of the extrusion where we installed a hex nut.

Push the spring inward with the Z sliding idler block.

Attach the Z stopper to the end of the linear rail and secure with an M3x12 SHCS screw.

Put an M3x18 FHCS screw through the smaller hole of the belt tensioner lever.

Place a 6mm idler on and secure with an M3 nylock nut.

Put the brass flanged sleeve into the bigger hole.

Put an M4 hex nut on the position about 78mm from bottom edge of the extrusion.

Align the brass sleeve with the M4 hex nut, and secure using an M4x10 BHCS screw.

Combine the bed carriage block and bed breakout PCB.

Install M2.5x6 wafer head screws in these two holes.

Add the printed PCB spacer to the back of the PCB.

Attach the bed carriage block onto the sliding block of the linear rail with M3x12 SHCS screws. Only use the top two holes as indicated. We will use the other two holes later.

Attach the Z belt retainer block as shown in the picture.

Insert M3x18 FHCS screws into the indicated holes of the left Z joint plate and secure with M3 hex nuts.

Place 6mm idlers on top of the M3 hex nuts and secure with M3 nylock nuts.

Screw one dowel pin into the hole of the left Z joint plate from the back.

Screw another dowel pin into the hole of the right Z joint plate.

Preload the M4 hex nuts into the extrusion and align them with the holes of the left Z joint plate.

Secure the the left Z joint plate with M4x10 BHCS screws.