Hie.
It's a bit tricky to work with it.
I'll put on the same folder one of the works I done with it.
It need two persons to work with it so we can guide the bar or the sheet of metal .
Bt it has a good traction as long as we keep the rolls parallel, since the adjust is independent on each side if we adjust one more than the other the material slip to one side.
The rolls are about 50 cm wide.
I had a smaller manual one, also home made, but it was very dificult to work with it, the material kept slipping and we needed quite a good lunch to have the energy to work with it.
I intend to built two more machines, one maybe bigger than that one and the other smaller to work mainly with stainless steel sheet for some decoration works I want to do. I'l put some bronze bushing on them and see if I can drive the 3 rolls instead of just 2. This one is bit crude, but when I need it, it does the job.
José.
From: michael
Sent: Tuesday, November 02, 2010 3:58 PM
To: gingery_machines@yahoogroups.com
Subject: [gingery_machines] Re: Potuguese slip roll machine
Hi
I notice you are driving your bottom rollers only. Does it work good?
Before I built my 24" slip roll machine for sheet metal I built a pyramid ring roller with open rolls for forming rings out of steel flat stock. It has the same roll layout as yours but with short solid rollers, the bottom rollers are driven through a chain. Mine works but not very well, the stock tends to slip a lot.
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