The 3 tower rails are made up of 4 75mm rails joined at each join with 2 inner-fill and 2 connectors. Total length should be 350mm.

The 9 rails that connect the top frame ends together & the bottom frame ends together are made of 3 75mm rails joined the same way as the tower rails. Total length per rail should be 235mm.

Step 2: Assemble frame top components

Insert 2 M5 bolts into the holes on one side of the frame top and loosely attach 2 M5 nuts.

Slide 2 of the inner fill pieces into slots adjacent to the 5mm nuts so 5mm sticks out.

Slide the M5 nuts into the channel of the 235mm rails and slide the tabs into the slots.

Tighten the M5 bolts (be careful not to crack the pieces)

Do the same thing for the remaining top frame pieces.

Step 3: Assemble frame bottom components

Using the same steps from the frame top, attach 2 235mm rails to the two positions on one side of the bottom frame.

Step 4: Install motors

Attached toothed gear to NEMA 17 motor.

Slide motor shaft into bottom frame and nest the cap of the motor in the cutout.

Attach motor to frame with existing screws from old motor mount.

Repeat for remaining motors.

Step 5: Assemble top & bottom frames

Slide M5 bold and attach nut on remaining rail side of all top & bottom frame components.

Attach 2 inner fill pieces to the unattached end of the 235mm rails. Make sure these are on the same sides as the attached end.

Slide M5 nuts into the slot of the rail and slide the tabs into the grooves of the frame piece.

Tighten the M5 bolts

Step 6: Mount vertical tower rails

Slide two M5x10 bolt through the end of the holes on the curved side of the bottom frame and loosely attach 2 M5 nuts.

Slide the 3 350mm rails into the 2020 slots on the frame bottom (the M5 nuts should slide into the channel of the rail) until they are level with the bottom of the piece.

Tighten the M5 bolts.

More to come ... inserting steel rods

More to come ... attaching top frame