Quote:
Originally Posted by HKS_TRD
How do you go about cutting out a square body mount hole like that?
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The hole was originally just big enough to clear the body mount, so the same length but about 2mm wide, and it is my runner body and probably gets the most abuse when I go bashing.
http://www.tamiyaclub.com/tc_userima...08183702_8.jpg
Cut with a no.11 scalpel blade, but scalpel blades can snap at the handle fixing point if you apply too much pressure to them so on more substantial plastic I use a no.11 Xacto blade. Score the shape of the hole slightly undersize a few times being careful to not go past the corners, I usually stop short so you don't create weak spots in the corners. You could just keep on going over the scores until you break through the other side, but once you have thinned it enough after a few times you can then push the point through the body and work your way along the line, the cuts will let the body split along the line. Do not let the blade get too near the corners. Cut the two opposite sides and you can then bend the piece down, cut it in half and you can bend and snap the two shorter sides to remove the plastic. Then use an equalling needle file to clean up the corners and enlarge the hole to fit nicely over the body mount.
If you really want to to prevent any sharp corners then a joint needle file or a round needle file can be used to round off the corners first then use an equalling file to join the corners, although as I used to do the holes same way when I raced Optimas I never had a problem with the body splitting at the body mount.