Parametric DuPont Shell (Revised with Indexing shift) by davewesh

Last crawled date: 3 years, 4 months ago

Modified the code from Kotvic's version of the Parametric Dupont Connector.
General modifications include:
Chamfer is now Dynamic - That being if you change the Cube Length variable, the chamfer will automatically correct itself to maintain the 0.0282mm pitch (assumed).
Cube Length is now a variable - in the event that you want to change the length of the connector, note that this has inherent problems, as the tabs and holes (for the pin) do not shift with the extra length.
Comments in the code to better understand SCAD and what's occurring when.
Purposeful modifications:
Indexing - My use case for the DuPont Shell is for a connection that will be polarity sensitive and therefore having the shell asymmetric is key in ensuring that it cannot be plugged in incorrectly.
Shell Extension - unlike manually modifying the code to expand the length of the cube shell and there by causing tabs and hole related issues (as mentioned above) this will create a new shell that will be joined to the "top" shell thereby increasing the length and keeping the wire side symmetric.
Shift Amount is simply the MM count from origin (0,0,0 in relation to the original shell) that the redrawn/duplicate is moved.
Note the Shell Extension is configured in the code to only be used when using Indexing and is only configured to modify the "duplicated" shell.
If there's a feature that you'd like to have in this code, let me know and I'll do what I can to add it in. Something I may add would be a clip based version that has a pair of positive locking tabs but this is a way later problem unless several people want it.
Previous Version: v0.1
v0.1 - Attempting to slice this without Modifying the code to increase the thickness of the wall will cause issues in 3d printing for FDM. I dont have an SLA printer to check viability.
Current Version: V0.2
Changes:
Increased Cube length and width size from 2.5 to 3 (mm).
Adjusted any existing artifacts caused from the increase in size (Tab hole, Tabs, and Extension)
Successful print was made with v0.2, Tabs generally don't work to retain the pins as expected, but SuperGlue/Epoxy does work well to keep everything secure. 2x3 array of Pins/Ports does appear to work, but noted some squish when printing Vertical this may have caused some mis-shaping in the extended "Indexing" part of the connector causing the pins to be misaligned.
When printing flat, difficulty with inserting the Pins into the connector was found. No effort to rectify this was made.
Planned updates: v0.3 and beyond
Make Tabs Optional, since they aren't working for me (but could for someone else) removing them would make printing easier and the connector more robust.
Depending on print orientation alignment may be a non-issue, further testing is needed, otherwise v0.3 will include adjustment to ensure that alignment is viable
Replace the "extension" approach of indexing with a positive lock or "dummy" pin option.