HELP creating geometric shape for 3D printer

[curious aardvark]

i actuallty just want the size of the triangle - in millimetres if possible.
they look taller than they are wide - although on balance it actually doesn't make any difference.

If you get lucky, he'll give you the source and you can adjust parameters to your heart's content.

'give' - hmm, 'sell' - more likely :-)

[Griffinmcg]

Let's go with 76 mm wide for each of those triangle bases. I'm not looking for it to be super exact to my plaster copy. Just this symmetrical on all sides geometric shape. :-)