I'm a bit unsure how to respond since you asked about Machined Parts which, to me, indicates a company by name. If, on the other hand, you mean machined parts, then hell yeah I use 'em. Some parts in a mod can only be achieved by creating 'em on da' spot.
For my next mod, a new bracket plate has gotta' be fabricated to mount a fabricated belt tensioner to hold the damn thing taut enough to sustain a smaller pulley's greater speed.
Good luck with your plans, bro'.
