
Originally Posted by
nova3930
Part of me has wondered exactly how much that lock is needed and how much it's just feel good CYA. Screwing down onto a taper is pretty damn secure, look at any mill or lathe to see evidence of that. My Bridgeport uses an R8 taper mount and the lathe uses MT2 on the tailstock. I was putting some pressure on my tailstock drilling through 416 stainless last night and it moved not a bit.
Guess I could put my engineers hat on and see what the slipping shear is on that taper for a given torque value......
ETA
If someone knows what that taper angle is off hand I've found the math to work out if the taper is self holding. I'm at work and don't have a mount handy. basically to be self holding, tan (0.5*included angle) < static friction coefficient of the component materials
I'd be mindful that the barrel has all kinds of harmonics going on during firing, and it vibrates like a tuning fork. Not sure how that will affect your required torque value over time.
"That thing looks about as enjoyable as a bowl of exploding dicks." - Magic_Salad0892
"The body cannot go where the mind has not already been."
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