I picked up a DTP reciever because it was so cheap but the mechbox doesnt fit in it. When inserted as far as it can go without getting out a hammer its still riding about 1.5mm too high in the back so the selector switch and motor aernt where their supposed to be. I'm trying to dremel it out, I knew it wouldnt fit perfectly, but the thing is I have absolutly no idea where its hung up so every time I dremel a surface down it has zero effect.
I took a caliper and started to measure thicknesses and widths and compare it to my TM plastic reciever and they are all within 0.01mm of each other (after I ground down all the parts there where thicker on the DTP one) so I have no idea whats causing it.
Pic of what I've done in front of the trigger:
Pic of what I've done at the back end of the reciever (this was all mostly becase there was all kinds of malformations in the metal, the surfaces wernt even close to flat):
