When working on the conductive cables zeon mechs like Zakus and Goufs, it's normal to not just spend a lot of time... you'll probably end up with sore fingers too. Here's a tip to help you out... you'll need a hobby drill, a little stick and sandpaper.
- Remove 'ringlet' from parts tree.
- Cut off as much of the sprue as possible (I use a nail-clipper for all my sprue cutting)
- Use a stick and shape it so that the ringlet fits on it snugly (a little masking tape might make it a better fit).
- Put the stick in your hobby drill if you have one, and turn it on (slowest setting if it's a variable speed).
- Now you can carefully sand the piece and it'll come out nice and cylindrical. No fuss.
credit : http://gundam_base.tripod.com/
