Try Mynesting. They have 1 free nest and after that they charge per nest or a monthly amount. I think if you do not ask for the dxf file you don't pay but it will still tell you how many sheets and show the nested sheets. I think it was about $7 to buy the dxf file so it is still cheep if you need it. It is a little decieving as it seems to just keep going and it will just keep trying untill you stop it.
I tried it and it's awful. It takes forever to nest and it doesn't really help me. The program will constantly stop responding and load times for parts was way to big. Not really useful
Why aren't you nesting the parts in eCabinets? I think any of the freeware optimizers will be very limited. They only allow you to nest a few parts until you purchase.
It will run forever if you let it but just stop it when it quits getting any better % of sheet use. The other option would be to look at cabinetpartspro web site for his stand alone nesting software. It is under $50
I want to use it as a true nest add-on to Mastercam X2. I wish we've purchased the true nesting to it as well. Now I have to nest and move all parts myself which takes lots of time. Anyways hopefully next year we'll get the newest version on Mastecam and problem will be solved. I think that with X4 true nesting became part of the standard version.