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Countersunk Ball Tops
SammyWI:
Yeah, I'm surprised there were no 'short shaft' or 'ball size' jokes. :angel:
So, no one knows the ball top size for Defender or Joust?
SammyWI:
Well, here's a cautionary tale. I found a 30mm ball top I had lying around. Thought I would just put a quick countersink in it and give it a try on my CP. I carefully lined up the ball on my drill press, centered and level. I start drilling and the ball gets caught on the drill bit and starts spinning in the fixture. No big deal, right? I hit the stop button and check things out. Well, it is a big deal when the ball spins against the clamping fixture and MELTS A NICE GOUGE AROUND THE BALL! I was concerned about cranking down on the ball too tight and marring it. Next time, I'll tighten things down more carefully. Looks like I'll be placing an order at LizardLick soon. :dizzy:
LeedsFan:
From the pics I've seen of Defender it looks to me to be a standard ball size. Maybe the same sticks as Robotron? 30mm seems quite small and is probably the same as Donkey Kong. I really don't think Defender had a small ball top like that, but I could be wrong.
SammyWI:
A little update: I got some 30mm balltops from Lizardlick. Put a 1/4" countersink in one today. This lowers the top of the ball about 1/2'' from a standard 35mm balltop. I did try to pull out the insert again and this one did not want to budge. I thought I was going to break my workbench. If I want to countersink deeper, I may have to buy a new insert and just completely drill out the balltop insert.
Drilling is still a pain. The bit really wants to grab and either pull the bit deeper or twist the balltop in the clamping fixture. Have to be very careful!