We are using Alphacam viewer which allows the operator to cut down the nest and repost program.

Correct, but can this change in nesting happen at the machine? I want the operators to continue to have this function not the programmers.

We run mixed volumes of parts and often have dedicated nests per part. When the occasion arises to run less than full sheets our operators have editors on the routers (Onsrud, Komo) that allows them to cut the nest down and repost.

Does anyone have experience with converting programs / shop from Alphacam to Mastercam router? Currently our shop runs Alphacam for the routers and Mastercam for the mills and lathes and I am looking at changing to a single CAM provider. One feature that keeps coming up with Alphacam is the ability to change the nests right at the machine.