PanelDue 7i Railcore cover friendly mount

This is a remix of the Lumberjack Engineering design found here. Same issue apply re: clones / off-brands.

I have the MRW cover and related cover interface components installed on my 300ZLT which pretty much renders all of the 1515 rail mount versions incompatible. 

I have the base attached to a modified version of wwendorf's “Filament Spool Holder for Railcore II” using two M3x20 self-tapping, countersunk screws. (See photo for reference)

If you don't want to bother with the cable retention stuff I've included a version of the arm without the mounting holes for the clips. 

Warning:

The 400mm ribbon cable included with the PanelDue was NOT long enough. Duet warns that longer cables may be unreliable. I have installed an 800mm 28AWG cable and the controls seem to be working. I also performed a firmware update with the 800mm cable installed with no issue.

I would also recommend going with the 600mm version as the 800mm version turned out to be longer than necessary. Duet also suggests going with 26AWG if you can find it, which may help with reliability issues.

As of the time of this publication, I have NOT tested SD card functionality on the PanelDue as I plan to modifying the case to improve access to the SD card slot in a future iteration.

Parts:

1 x 800mm or 600mm 2x5 ribbon cable

4 x M3x30mm socket head screws and 4 x M3 nuts (Display housing)

4 x M3x8mm socket head screws and 4 x M3 nuts (cable retainers)

4 x M3x6mm socket head screws and 4x M3 nuts (display mount)

2 x M5x25mm button head screw and 2 x M5 nuts (arm-to-display, arm-to-mount)

7 x M3x20mm countersunk self-tapping screws (clips-to-arm and mount-to-spool holder)

Known issues:

Vibration. The 200mm arm vibrates noticeably with the display on the end of it. I plan on putting some rubbing under the mount to see if it reduces it any. 

SD Card slot. The case as originally designed, is fairly thick plus there's a bit more of a gap than really necessary between the PanelDue board and the casing. Thinning out the case and tightening up the distance should make the SD Card slot useable.