Open Hardware
Assembly Instructions

2x- 12mm OD, 515mm long smooth rod

2x- M3 set screws

Carefully take the frame to a flat surface and use a square to ensure the frame is perpendicular to the flat surface.

Slide two 12mmX 515mm smooth rods from the X End Left halfway into the frame assembly through the X End Left assembly.

Slide the X carriage assembly onto the guide rails, and slide the guide rods into the motor side carriage.

Make sure to flush up the smooth rods on the X End Right side.

Using two (2) M3 set screw (one each on the Right End and Left End) tighten the guide rod set screws on both the X End Left and Right to 3in-lbs.

4x- 3/4” wide, 1/4” high rubber bumper

2x- Coupling GSASL16-5-5-NAB with 4x set screws

8x- M3x10 BHCS

8x- M3 Black washer

2x- Moon's Nema 17 Stepper Motors

Loctite 220

Clean all oils and debris that might be present from the two bottom extrusions; install one (1) rubber foot pad at the end of each bottom extrusion by pressing and holding the foot pad in place (with adhesive protector removed) against the extrusion for at least 7 seconds.

Stand the assembly up so that it is standing on the rubber feet.

Install a coupler onto the shaft of a motor; align one of the two lower set screws with the flat section of the motor shaft; set the height of the coupler to 16mm tighten each of the two (2) lower set screws to finger tight. Repeat this for a second motor- together they are the Z Left and Z Right motors

Install the motor/ coupling assembly onto the end of the drive rods (left and right sides) making sure to align the motors so the white motor connectors are oriented toward each other.

Secure each motor to its mount with four (4) M3x8 BHCS and four (4) M3 Black washers, tighten to hand tight

Secure the coupler to the drive rod shaft; align one of the two lower set screws with the flat section of the drive rod shaft; tighten each of the two (2) upper set screws to finger tight. Repeat this for a second motor/ drive shaft connection

Apply Loctite 220 to each of the coupler set screws, ensure no residue leaks onto the coupler, clean away any excess material immediately with a clean dry cloth.

Install two (2) control box mounts to the rear side of the control box using one (1) M5X10 BHCS and one (1) M5 black washer per mount. Torque to 10in-lbs.

Insert two (2) M5 T-nuts into the back left Z frame extrusion inside slot from the bottom, hold the T-nuts in place with a device such as a T-Nut holder

Mount the control box to the left side of the Z left frame by guiding the control box (with the two rear control box mounts that are already attached) onto the back left frame extrusion so that the mounts go over the extrusion and the control box sits flat against the frame

Install two (2) control box mounts using an one (1) each M5X10 BHCS and M5 black washer onto the front left extrusion M5 T-nuts

Position the control box flush against the frame left side and so it is fully supported by it's own feet and not distorting the Z frame.

Attach the control box mounts to the case (front two mounts) and to the extrusion (back two mounts), tighten the eight (8) M5X10 BHCS to 10in-lbs.

Push the opposite side of the table's Y chassis mounts firmly against the extrusions and tighten the mounts to hand tight;

Push the opposite side table mounts firmly against the extrusions and tighten the mounts to 10in-lbs.

There should be NO space between the struts or mounts. Tighten the thumb screws.

Use tie wraps in the following steps to secure the harnesses as shown. Make sure to keep a nice radius at each bend in the harnesses.

Leaving a nice radius to the extruder harness, secure the harness to the corner bracket.

Secure the rest of the harness to the backside of the frame 155mm from the edge of the left top drive by measure or using a jig as shown.

Secure the two Z, and the Y motor harness to the lower corner bracket.

Tie wrap the Z and Y harnesses to the lower rear extrusion leaving a fingers width of space between the tie wrap and the mount.

Tie wrap the Y harnesses to the lower rear extrusion leaving a fingers width of space between the tie wrap and the mount.

Tie wrap the Z harnesses to the lower rear extrusion leaving a fingers width of space between the tie wrap and the mount.

There should be a nice liberal radius at each turn in the harnesses to prevent premature wear and motor disconnections.

Cut the excess of the tie wraps using flush cutters.