Plugging holes in plastic

[bigster]

I am trying to add SNES controller ports to my cabinet and I cut the holes too big with my dremel drill.  They are going in a plastic faceplate.  What is the best way to patch/fill the excess area in the plastic that i cut out?

[Minions]

Bondo works wonders. May take some practice to get used to using it though.

[SavannahLion]

I've done this before and it's a pain in the ass.

I use the same method automotive people use (err... except the bondo business). I take a sheet of the appropriate plastic (such as styrene) and bond it to the back. Apply the appropriate putty, sand, paint then redrill/reshape as needed.

Bondo does work, but I don't generally use it on plastics.

[kahlid74]

I've done this before and it's a pain in the ass.

I use the same method automotive people use (err... except the bondo business). I take a sheet of the appropriate plastic (such as styrene) and bond it to the back. Apply the appropriate putty, sand, paint then redrill/reshape as needed.

Bondo does work, but I don't generally use it on plastics.

This.

[RandyT]

Get a tube of epoxy putty.  If it's just a small gap, it'll fill it fine and you may not even notice it.  It sticks to plastic (and just about everything else) like crazy, you can machine it, and you can probably even use it to attach your port to the cabinet.  Can't say for sure about the last part, without seeing exactly how you are going about it, though.

[Xiaou2]

Get a tube of epoxy putty

 I agree.  I especially recommend "Quiksteel"  (not quicksteel, thats different)

 Ive used it to fix laptops that had broken power adapter mounts.  They have a plastic version that is a white color putty.  It sets up hard as a rock in 5min flat...  So hard, that you cant even scratch it with a nail.  Amazing stuff.