I am aiming to mount my Nano 33 BLE (or Sense Rev2) inside of an enclosure. It will most likely be polycarbonate or some polycarbonate alloy and is being designed in CAD now (ABS is also an option). I need to pull accurate acceleration data from the IMU so need the component as rigidly fixed as possible.
I was going to mechanically fix it by creating a thread hole in the CAD rendering and getting nylon screws. However, the four holes on the corners of the nano measured to be 1.5mm, which does not correlate to any screw sizes I can find. Am I missing something or is this too small of a hole to use to mount the nano in this way?
I understand that some type of epoxy/resin adhesive could also work. If so, what type would people suggest so that it does not interfere with the Nano in any destructive way. If you could provide a link, that'd be great!
If you have any other suggestions for rigidly fixing this outside of what I mentioned, feel free to let me know as these are the only two routes I am working with.
Thanks, I could not locate the drawing so I had to use my calipers, which would not fit inside the hole, so an exterior estimate was used. Where can I find the drawing?
I don't have a sufficient knowledge regarding screw sizes - what is the size difference between this M1.6 and #0 (wondering why you think the 0 is better)
That's another idea I'm running with - slots with a tight friction fit. Or a looser fit with some epoxy to fill in any potential open space to ensure that it is rigidly fixed - any movement will interfere with the data collection of course
Me neither. But here where I live we have google, which lets me know until I forget that a #0 screw is 0.060 inches nominal diameter or 1.524 millimeters.
Make an insert out of thin clear Plexiglass. If you err slightly you do not leave hogged out holes clearly visible on the outside of the box.
Nylon or brass standoffs screwed to the modules, then glued to the floor of the case.
Use Libre Office Draw or Open Office Draw to make a template. Put a + in the middle of the mounting hole as a drill guide. You have the option to print it backward and iron it on to a metal surface as a template. You can fuss and fiddle with the size percentage setting to get the final version more accurate than you can drill.
Actually, there is a handy rule of thumb that I use to remember what fractional size a # screw is. Starting with #0 which is 1/16 or 4/64. #1 is + 1/64 or 5/64. #2 is 6/64 or 3/32. etc. I can't remember if it breaks down at some point but if one cared they could calculate it.
don't have to. You've already found the logical 1.0mm, 1.2mm, and 1.4mm
It's so much easier to remember.
See, you're already on the verge of enlightenment! Come on out into the sun.
