1 ch ssr module 35mm din rail mount

thingiverse

Arduino 1 ch ssr module 35mm din rail mount the pcb measures 25mm X 34mm the 4 mounting holes in the corners are 3mm diameter, 20mm's center to center one way and 29mm's center to center the other way I wanted to use a 1 ch ssr module instead of a 4 or 8 ch module so this way if one fails I can replace just one module, instead of one board with 4 or 8 ssr's on it. But 4 or 8 individual modules does take up more room than a 4 or 8 unit module. I have 2 versions, one will hold a 1 ch ssr module, the other one will hold a 1 ch ssr module, and 1 Arduino Nano, without the long pins. I have 2 more versions, with print helpers. A 0.25 brim on the bottom and 2 rails on top, joining 2 posts. My printer would not print the posts unless I added the rails. It might be my retraction settings, but it works this way, so there you go. I added the parts in red to help with printing. Trim away post print. These mounts will snap into a 35mm din rail, but be very careful when trimming around the snap in parts. They snap in, but are very hard to get back out. Printed in ABS, 0.2 layer, 25% infill https://youtu.be/WI6ZfPqRs_E REVISION: I did not like how the nano mounted in my carrier. And I also did not like that it was so hard to get the carriers back off the din rail. So I added a little handle to the carrier to make it easier to get them back off the din rail. And I re-designed how the nano mounts. I used my nano breakout tray and I designed a pedestal and socket for it. This way I can use a nano with all the pins soldered in and it will be much easier to replace if it fails. I am using standard Dupont M-M jumpers. I removed the print helper (brim) from the bottom but I left the 2 on top for the 4 posts. The new files are: ssr01.stl pedestal.stl nano-tray