About this 3D model
Designed in Tinkercad, this is a simple 20mm x 20mm stand with a cross or "groin" vault bottom. Printed vault-side up, should come out nicely. Cross vault: http://en.wikipedia.org/wiki/Groin_vault Reminiscent of Wajazn's relay board mount: http://www.thingiverse.com/thing:4106 Tinkercad file: https://tinkercad.com/p/acc0019a5f672961