BDM Frame w/ Probe Pens for Dupont Cables

This is a work in progress! 

BDM board/frame & probe pens

I designed the probe pens to fit standard dupont cables/connectors. The heads of the connectors are 3mm wide, so the square opening to fit them in is slightly wider to accommodate fitting them in and through.

The BDM board (currently) has 35x12mm openings.

W: 100mm

L: 150mm

Board Height: 5mm

Leg Length (not including board): 50mm (WIP: to be adjusted)

Pen diameter (at top): 7.25mm

Pen diameter (at bottom): 4.7mm

Pen inner diameter (for dupont connectors): 3.2mm

Pen length: ~150mm

This can easily be scaled to fit your needs. Will accept requests for different board sizes and height, but I recommend uploading it to TinkerCAD and adjusting there or using your slicer to cut and adjust.

PRINTING:

This was designed in TinkerCAD and printed using PrusaSlicer 2.9. Everything was printed in PETG as it has a higher heat resistance and strength (it should be completely fine to print in PLA).

• BDM Board:

  • Print the legs at 100% infill. You want the weight of the legs to keep it on the ground. 

  • Recommend 15% infill using rectilinear or gyroid (I did 20% infill with gyroid).

• Pens:

  • I haven't tried printing these vertically yet. If you do, I highly suggest a brim to keep them in place. I printed horizontally with some supports from the bed. I'm not a fan of the way I printed them. YMMV.

ONE LAST THING TO NOTE:

• I currently don't have an idea on how to keep the dupont connectors in the pen other than putting some heat on the small end to help keep it in place. Suggestions are welcome.