A hydraulic cylinder that is acted upon by either the top or bottom wheel, with a pressure gauge attached to the port on the backside of the piston, would give a reading of how much force was being applied to the wheels. No leaks allowed, and no air in the cylinder/gauge assembly. CZ
When I prestretch a panel before rolling a bead is there a rule of thumb on how wide an area and how deep? I plan to roll in a bead roughly 3/4 wide and 3/8 +...
Tim Rick Mammel {spelling] had a post on procedure using a E-Wheel with thin lower wheel . John B. also had a procedure with CP air hammer. I just tried the...
Gordo, That would have been Rick Mullin who did a very nice step by step of the prestretch for a tapered bead on a RR fender skirts. Maybe Mr. Mammel will...
When I prestretch a panel before rolling a bead is there a rule of thumb on how wide an area and how deep? I plan to roll in a bead roughly 3/4 wide and 3/8 +...
Tim, Being there is so many different machines & dies that could be used for the stretching operation there will never be any rules on that, it just boils down...
I agree that every bead will be different and the 'amount' of pre-stretch required will vary accordingly. Trial and error is the only way I know of. I tested...
Tim, one thing you can do is put a piece of tape on your hand/foot wheel so you can dial back to the same point. One of the very few times I've actually used...
The key point is you need to do directional stretching because the beading operation pulls the metal in from the sides, only about 30% of the bead results from...
I agree with John. As far as width goes, in my somewhat limited pre-stretching I discovered that staying close to the bead width worked well. In my previous...
I was thinking while I was doing mine. Yeah I know... If a person were to index his handwheel/kickwheel with some type of repeatable markers and then kept a...
 Yowza All,    Been following this thread and others like it for a while.    Made my last 2 e-wheels and the third one is partially CAD-ed up. As...
I don't know Bob. The problem with what you describe, imo, is that you're probably not going to be that consistent. When you're making a panel and go through...
I'm not a practicing metal shaper but my long-time friend , John Toom, had a solution for the problem that is being discussed. He made a "C" shape of sheet...
In a message dated 7/2/2009 5:11:52 PM Mountain Daylight Time, rossw.lovell@... writes: If anybody has suggestions or caveats don't hesitate to educate...
 Yowza CaptonZap,       The hydraulic cylinder replaces the acme screw thread that would usually be moved via a kicker or handwheel? Love the idea...
In a message dated 7/8/2009 2:22:18 PM Mountain Daylight Time, rossw.lovell@... writes: I'd expect a too-hgh setting would mar the metal in a way not...
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