Is the heatsink too heavy to be supported only by the 16 triacs? I've done some other boards with much smaller heatsinks and just used the triacs to support it. Not sure if that would work here or if I should be trying a work around.
It likely would be alright if you were easy on it but I always worry someone will grab it by the heatsink. I know I do on all mine, but with the bottom screws this is no problem as it is ridged.
I spoke with the Machine shop and they are trying to figure out what went wrong. They promised the next batch will be checked every so many to make sure it is not a problem.
Someone said I should change machine shops. Well the problem with that is a couple.
1 - We do not have a number of machine shops like larger areas.
2 - Everyone is under the belief that they messed up before maching them but in reality they accidently put some damaged (mismachined parts that were to be thrown away in with the good and so the ones that were drilled wrong were not charge to me they just were accidently mixed in and I replaced them for everyone that asked with good ones from the same batch. (there were 10 bad ones in the whole batch) so this is their first machining mistake.
3- This shop is doing this very cheaply for me. Most shops will not even talk to us about doing this for a price I can make work. I do not think everyone would want to pay $3 - $4 more for them.
4 - If I do this at a shop not local I have to ship them which then adds more cost to it. The way it is Dad (JJ) runs the metal out to them and picks up the finished units for me.
RJ
