The Maker Thread - Definition Enclosed

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I do a lot of 3D printing of car parts in PLA, PETG, and even tried ASA. The ASA seems to be pretty good stuff but you do need a good heat bed for it not to warp. Thats why I lean towards PETG for my prints.

Here is the center console piece that I have been working off and on:

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I just got in the 9in screen last screen for it, so I will be able to start mocking that up next. Then need to finish the mounting plate for the HVAC controls to be mounted behind the above plate with the extension knobs.


Other Car Projects that I have done...

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Soo anybody wanna talk electronics?

I am looking for a ttl compatible (3.3v) cmos that is capable of switching up to 20v
Basically I need a spdt analog mux demux for some shenanigans I am designing..
I can provide schematic diagrams if it helps.
I am also curious if I use a more widely available cmos that is only rated to 12v single ended can I clamp the input voltage with a zener to 11.8v or will this affect the upstream voltage in the system?

Usage is automotive, this is meant to be used as a way to isolate differing circuit parts from one another for usage of one input wire and one adc for multiple circuit functions (gui controlled selection between analog input and digital switching)