- Thread starter Seano
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I've never seen a professional ring roller with knurled rolls. With the force involved it would leave an impression on the material. Not sure they need to be hardened either, would make them prone to breakage. Don't think ours are hardened. When i made the one i used to have i used bright solid bar - reasonably regular diameter and a smooth finish. 3 short bits from Metal Supermarket or similar should do?
There's a fella on ebay selling plans for folders and ring rollers. Not sure if he has any on at the moment but i keep coming across him when searching for things!
There's a fella on ebay selling plans for folders and ring rollers. Not sure if he has any on at the moment but i keep coming across him when searching for things!
Drains
Yeah, nah.
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WCW, I've got a couple of sets of plans you can have which might get you started. PM me your email address and I'll send 'em.
I don't think there's a problem with hardening the rolls - use EN8 and harden and temper, they'll last years and brittleness won't be a problem if they're tempered properly. Might not be necessary though.
I don't think there's a problem with hardening the rolls - use EN8 and harden and temper, they'll last years and brittleness won't be a problem if they're tempered properly. Might not be necessary though.
madkayaker
Pro sparkey Pro Welder
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mine just has bright solid bar. but it is the same one that paul is talking about! not got around to finishing it yet
Windy Miller
Semi-Professional Potterer!
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Ditto Paul with regard to knurled rollers. On my Metalcraft set, the knurled rollers leave quite deep marks on the steel, particularly on smaller radius curves.
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Different one
That was going to be Mark 2Our Ercolina one is made up from a number of plates that can be turned around/orientated differently to form a slot that the material fits in to stop it wandering. Need to watch it through, when rolling box section, particularly to a tight radius it squashes it out so tends to nip and chew the sides up. Need to leave them a bit slack to allow for it. I'll get some pictures of our set up if it helps.
I have. I think all Baileigh ring rollers that have 2 powered rolls (so not 3 powered) have knurled rollers, and yes, it leaves an imprint on the stock - according to the Baileigh staff - I guess the severity depends on the radius of bend you're trying to achieve. A lot of their tools seem to be generic, so I guess this is the same for lots of these copiers / 'manufacturers' / re-badgers, although I haven't seen any in the flesh.
Al.
Seano
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Yeah I did wonder about leaving impressions Paul, I intend to use split adjustable collars on the rolls to keep everything lined up square, also to allow me to use different width flat / round stock, cheers for the ideas fellas,
Sean
The places that sell the machines will also sell various dies, usually custom options too. You don't want to know what Ercolina charge for radiused dies but cheaper options would likely be Baileigh for example... http://www.bifabuk.co.uk/benders/rollbender-tools.php or Stakesys... http://www.stakesys.co.uk/product/custom_roll_set_for_sta149/
Usually cheaper to find a tame machinist or you could buy/make a radius turning attachment for the lathe
Usually cheaper to find a tame machinist or you could buy/make a radius turning attachment for the lathe
PhillipM
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Baleigh aren't that cheap either, although I prefer theirs over the Ercolina ones, they seem to have gone downhill of late.
