On 2/8/2013 9:39 AM, Tim Wescott wrote:

Does this sound reasonable to you, or am I all wet? Is this something
that a normal sheet metal shop should be able to do, if they were
provided with suitably cut sheets?

If you make each bend referencing the edge used to reference the holes,
you should have no trouble holding your tolerance, assuming the holes
themselves are well within said tolerance. If not, there's something
wrong with your setup or technique.

Your ultimate accuracy will depend on the accuracy and consistency with
which the holes are punched. If this varies, might see if there's some
way you can set up to register off one of the holes.


Jon