search

50an6xy06r6n / hotswap_pcb_generator

OpenSCAD script for generating 3D-printable hotswap keyboard PCBs.
GNU General Public License v3.0
432 stars 34 forks source link

How do these affect height / Please provide side view, or schematic #24

Closed OWL4C closed 4 weeks ago

OWL4C commented 4 weeks ago

Without building these, i wonder how much they affect the height of a keyswitch. Having made my case in ergogen already, i was hoping to add these to the wall height of my case, but i do not know how much they change the height of the switch.

From a youtube video, i saw that they do not sit flush with the bottom of the switch, since the diode is between them. Maybe that was only the videos fault- i don't know. It would be nice if you could take some pictures from the side and / or give some measurements (or ranges, if they can slide up and down). Really nice would be the amount of space between the casing (lower edge without stem) to the upper pcb, since feet length can vary. Since different sources have different feet length (between 2-3 mm for the contacts) and the pcb i created is 4mm thick, knowing how near they can get to the switch casing would be enough to plan my case.

50an6xy06r6n commented 4 weeks ago

There's a YouTube video about this? That's news to me. Can you link it so I can see what gap you're referring to?

The PCB is designed so that the switches can sit flush when using the glass-encased variety of 1n4148 diodes. I have not tested it using any other diode types. Maybe that should go in the README if it isn't already.

OWL4C commented 4 weeks ago

There was this 3 hour livestream which is really more about the youtuber chatting than the project. https://www.youtube.com/watch?v=3ZCAY2VO7p8 At around 2:06 you can see the switch get inserted but because of the perspective i couldn't figure out if it is flush or slightly sitting on top of the diode. Looking at it one a bigger screen now you can reasonably suspect they sit flush though.

If they sit flush with the bottom housing, by my own measurements and this website https://media.digikey.com/pdf/Data%20Sheets/Cherry%20PDFs/MX%20Series.pdf you could mention that at 4mm they will increase the height by only .7mm; as for me, i'll just make the case 1mm higher, and the keys should still reach the pcb comfortably. I'll be sure to update this as soon as the print arrives and i can test out the fit!