BROR Mounting Brackets for Expandable Steel Sheet Holder (MK & CoreONE)

I love the expandable steel sheet holder from Whity but I have my 3D printer in a IKEA BROR workbench. This workbench has its table to op some C-channel and that does not make for simple mounting of the sheet holder. So I made two brackets the makes mounting super easy.

Hardware

In addition to the hardware needed for the sheet holder you need

• 2x countersunk 4x16mm wood screws

Print instructions

• Filament: PETG
• Layer height: 0,2mm
• Walls: 4 (based on a 0.4mm nozzle) if you are frugal with filament (the economy am I right) you can de the front bracket with 2 walls and the rear with 4 walls. The rear bracket needs the stiffness to ensure the slits keep proper alignment.

Mounting instructions

1. Before mounting it is important to do a test fit to ensure the left and right bracket are square to the top brackets (make squares, not parallelograms).
2. With the print sheets in the holder, push the slit in the front bracket into the C-channel of the BROR workbench. Check if the whole holder is parallel to the front of the workbench one side might go in easier than than the other! 
3. Test the sheet holder mechanism with one hand, while the other hands in holding the rear bracket with the other hand. If the sheet slide out poorly, you probably pushed it out of square while doing the last step. If this happens go back to step 1 and tighten the bolts a bit tighter this time
4. Once you ensured the position of the holder is correct, take the print sheets out of the holder with one hand while still holding the rear bracket with the other.
5. Use the 4x16 screws to fasten the rear bracket to the wood workbench top.
6. Insert the print sheets and bask in you tidy, organized workspace.