A case for a SainSmart 8-channel 12 V USB Relay Board Module.
The board presses into the base and is clamped down by the top cover.
The top cover is designed
...显示更多 to be printed upside down with minimal supports inside the screw holes. The screw holes are designed for 6-32 x 1/2" machine screws with matching nut. You may be able to fit, drill out, or edit the holes for a different size.
Fusion 360 download and export link: http://a360.co/2pu4h02