01. Frame assembly

Repeat this step for 4 Joining plates (2 are mirrored)

Cap Head Screw M6x12

Cap Head Screw M5x18

Rubber foot

Joining plate

3030 Drop-in T-Nut M6

3030 Drop-in T-Nut M5

Set the T-Nuts in position, but do not tighten them just yet.

Set up all remaining Joining Plates in the kit

Cap Head Screw M6x12mm

3030 Drop-in T-Nut M6

Set T-Nuts into position, but do not tighten them just yet.

Set up all Corner Brackets (x12) in your kit.

Cap Head Screw M6x12

M6 Washer

3030 Drop-in T-Nut M6

Set T-Nuts into position, but do not tighten them just yet.

For the next step you will need:

1 X 420mm 3030 extrusion

2 X 440mm 3030 extrusion

2 X 450mm 3030 extrusion

Prepare the 3030 extrusions:

440mm (540mm, 640mm)

450mm (550mm, 650mm)

420mm (520mm, 620mm)

Attach 6 Corner Brackets to the ends of the vertical extrusions

205mm (255mm, 305mm)

Carefully attach the extrusions by tightening all screws on the Corner Brackets. Make sure the frame is perfectly square. A flat surface may help.

Make sure the frame is square. The diagonal lengths should be equal

The middle extrusion should be in the exact middle of the inner frame - 205mm (or 255mm or 305mm) from the side extrusions

Loosely attach 6 corner brackets. Don't worry about alignment, you will adjust their position in a moment.

If you are opting for a back panel this is a good time to attach it. It's going to be difficult later.

Panels are not supplied by Rat Rig, they are meant to be sourced locally. DXF files are provided for each panel and machine size.

CAUTION: Panel should not be thicker than 4mm, or it will not fit.

If needed, drill the M6 holes and fasten the Cap Head Screw M6x12 through them

Attach the 3030 Drop-in T-Nut M6 to the screws

Some kits may use M5x12 screws with M5 T-Nuts for this step. If this is the case for your kit, it will include 18 M5x12 Cap head screws. If not, it will include only 4 of those screws.

Cable Management Printed Parts (Optional and not included in the kit shipped by Rat Rig)

Fit the panel on the inner frame and fasten all of the screws

CAUTION: These lengths are very similar, do not mix them up!

Prepare 3030 extrusions:

2x 505mm

4x 510mm

Attach the corner plate assemblies to the Z extrusions (510mm)

Add the Y extrusion (505mm)

Repeat for the other side of the frame

Don't worry about the top Y extrusions - those will be added later

Prepare the X 3030 extrusions:

4x 440mm

Join the two frame sides with 440mm X extrusions

Attach the bottom corner assemblies

Add the top 440mm X extrusions

Insert the inner frame into the main frame.

You will need to loosen the bottom corner assemblies a little

The distance between the inner frame and the main Z extrusions should be 47mm

Use the motor_plates (from Part 0.2 XY Drive Assembly) to align the inner frame bottom position in the correct place.

Prepare the Y 3030 extrusions

2x 505mm

Attach the top Y extrusions

You will need to loosen the corner brackets in the top of the inner frame

Again, ensure the inner frame is parallel to the main frame - the distance between those should be 47mm

Use the motor_plates (from Part 0.2 XY Drive Assembly) to align the inner frame top position in the correct place.

Backpull the M5 hex locking nut and fasten the two printed parts together with a Cap Head Screw M5x12

Attach the 3030 M5 T-nut to a Cap Head Screw M5x12 through the bottom part

Fasten the endstop to the top printed part with 2x Cap Head Screws M3x10

Thread the M6x12mm screw through the back cable guide and attach the 3030 M6 T-nut

Screw the part the the center of the inner frame's top extrusion

Don’t tighten too hard

Attach the Y endstop to the frame

VERY IMPORTANT: a frame that is not square will produce noise and will wear out parts like bearings and belts

Go around your frame and check the diagonal lengths - those need to be as equal as possible (a difference of less than 1mm is acceptable)

Front and back

Right and left

Top and bottom