My batwings or bottom bracket support is made using a jigsaw with a fine steel blade, angle grinder, bench grinder and hand files.
I traced the outline and went slowly going forward, backing off a little, all the way around.
I had the help of cutting lube to help the blade around the curve.
Last edited by soup325; 02-08-2013 at 07:39 PM.
Reason: img tags