Page Comparison

These instructions are for assembling the CMC replacement box for return shipping of the CMC. Please refer to the packaging instructions for the specific CMC model for full packaging instructions.

70-00032-1 Board box – top (1)
70-00034-1 Board box – bottom (1)
70-00036-1 Foam set (1 set – 6 pcs)
70-00040-1 PSA tape (28 feet)
– this will be on the board box

70-10017-1 ECU box (1)
70-10018-1 ECU foam (2)
70-10019-1 Head box (1)
70-10015-2 Head foam (1 set – 2 pcs)
70-00038-1 Board box shipping box (1)
20-00027-1 Shipping Blocks (6)

• Remove the CMC box marked “bottom” from the shipped package and unfold it onto a flat surface.

• An area of at least 8’ x 10’ is needed to assemble the box.

• Make sure that the printed side of the box is face-down, toward the floor.

• Pre-fold the sides of the box to make assembly easier.

• Carefully peel back the adhesive paper from one corner flap and affix the corner flap to the inside edge of the box side.

NOTE: Take care that the adhesive does not touch any other surface other than the inside edge of the box side. The adhesive could become contaminated or pull away from the box surface.

• Press the corner flap firmly into the inside edge of the box to make sure it has made strong contact.

• The corner is assembled.

• Repeat the Steps above on the other three corners.

• Repeat the Steps above on the CMC Box marked “Top”.

• Remove the gantry cover by unscrewing the screws that holds it in place and set them aside.

• Move the gantry to the right side of the board about two feet from the right edge (to leave room for the packaging foam corners).

• Remove the 5/32” Allen screws and washers from the lower gantry plate.

• Locate the 3/16” Allen belt tensioner screw that’s located on the right bottom side of the lower rail and marked with a red dot.

• Loosen this screw one turn only so that there is some movement in the belt tensioner.

• The tensioner springs should be visible.

WARNING: Make sure you do not over-loosen this screw. One full turn is usually sufficient.

• Locate the belt tensioner hole on the end of the belt tensioner.

• Place the 5/32” Allen screw and washer we removed from the lower gantry plate into the belt tensioner hole.

• Tighten the Allen screw until belt tensioner is flush with the rail and the springs are not visible.

• Go back and tighten the 3/16” Allen belt tensioner screw.

• Lift the drive belt end out of the belt tensioner slot.

• Pushing the drive belt end to the right may assist in getting a hold of it.

• Wind up the drive belt, and rubber-band it.

• Repeat steps 4 through 9 with the upper rail.

• Move the gantry far enough to the left to dislodge the belt anchors.

• The belt anchors are sunk into the left ends of the rails and are attached to the drive belts.

• See the instructions below for the type of Gantry Stop your machine has.

• Loosen the top 3/16” stop screw of the Magnetic Gantry Stop.

• Lift up the magnetic stop plate to disengage the pin from the hole and slide the alignment plate to the left end of the rail to remove.

• Remove the right front 3/16” stop screw of the silver Gantry Stop Plate and set aside.

• Loosen the back left T-Nut screw and slide the alignment plate to the left end of the rail to remove.

• If your model only has a Stop Screw without the alignment plate, remove the stop screw.

• If the shipping blocks have been misplaced, please find a way to secure the gantry so that it does not move during shipment.

• Loosely place the T-Nut onto the shipping blocks and slide onto the rail on each side of the gantry as described next.

• Place two of the shipping blocks on either side of the gantry on top of the upper rail.

• Tighten into place.

• Place two shipping blocks on either side of the gantry on the bottom rail.

• One should be to the left side of the gantry on the underside of the bottom rail.

• Tighten into place.

• Place the other shipping block to the right of the gantry on the top of the bottom rail.

• Reinstall your Gantry Stop as described below.

• Slide the black Magnetic Gantry Stop Plate in from the left end of the rail keeping the pin towards you.

• Place the pin into the hole and tighten the top 3/16” stop screw.

• Slide the alignment plate in from the left end of the rail and line up with the holes on the rail.

• Tighten the back left T-Nut screw.

• Replace the right front 3/16” stop screw and tighten.

• If your model only has a Stop Screw without the alignment plate, replace the stop screw.

• Lightly pull the coiled drive belt toward the right to take up the slack and pull the belt anchor into place flush with the end of the CMC.

• Remove the rubber-band from the drive belt and loosely lay the drive belt along the rail channel.

• Pull the loose belt end to the right, making sure that the drive belt is not twisted and that the teeth are facing down toward the board into the rail channel.

• Slide the screw of the belt end into the belt tensioner slot.

• Remove the 5/32” Allen screw and washer from the belt tensioner.

• Place the two Allen screw and washer into the holes provided on the lower gantry plate.

• Place them so that the screw protrudes only slightly from the back of the plate.

• Loosen one full turn only the 3/16” Allen belt tensioner screw from the right bottom side of the lower rail marked with a red dot.

WARNING: Make sure you do not over-loosen this screw. One full turn is usually sufficient.

• The belt tensioner should spring fully into place.

• Snugly tighten the Allen belt tensioner screw on the bottom right of the upper and lower rails.

• Repeat steps 1 through 8 with the upper rail.

• Replace the gantry cover using the two screws removed earlier.

• Remove the bottom gantry cover by unscrewing the screw that holds it in place and set it aside.

• Move the gantry to the right side of the board about two feet from the right edge (to leave room for the packaging foam corners).

See the instructions following for the type of Gantry Stop your machine has.

• Remove the right front 3/16” stop screw of the silver Gantry Stop Plate and set aside.

• Loosen the back left screw of T-Nut and slide the alignment plate to the left end of the rail to remove.

• If your model only has a Stop Screw without the alignment plate, remove the stop screw.

• If the shipping blocks have been misplaced, please find a way to secure the gantry so that it does not move during shipment.

• Loosely place the T-Nut onto the shipping blocks and slide onto the rail on each side of the gantry as described next.

• Place one shipping block to the left of the gantry on the underside of the top rail and the other to the right of the gantry on top of the rail.

• Tighten into place.

• Place the other two shipping blocks on the lower rail.

• The bottom shipping blocks should be located on the top of the lower rail on either side of the gantry.

• Tighten into place.

• Reinstall your Gantry Stop as described below.

• Slide the alignment plate in from the left end of the rail and line up with the holes on the rail.

• Tighten the back left T-Nut screw.

• Replace the right front 3/16” stop screw and tighten.

• If your model only has a Stop Screw without the alignment plate, replace the stop screw.

• Replace the gantry covers using the two screws removed earlier.

• Locate each of the foam corners.

• Note that the foam corners that attach to the top of the board are wider than the foam corners used for the bottom of the board.

• Fold and separate the middle top and middle bottom foam corners from each other.

• Attach the bottom left, middle and bottom right foam corners.

• Attach the wider top left, middle and top right foam corners.

• For the model 5000, remove the insert before placing over the motors on the board.