Enclousure for the 2-Channel SainSmart Relay Module. No Support needed. Printed on Hephestos 2 in black PLA with Buildtak. I used SketchUp to edit the original design. The SketchUp-File is included.

After some users having problems with non-fitting-Relay modules I ordered a new Sainsmart 2 channel relay in November 2017. Please check you relay module before printing. The 2017 version has 4 holes for mounting with a distance of 33,5x44,5 mm. The older modules are 35,0x48,0 mm