davidjohnperry
a different breed
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A tube bender. And former ideally without a lathe. It don't need to look amazing or anything it just needs to function
- Thread starter davidjohnperry
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Gareth0123
You'll need 16 pigs to do the job in one sitting!
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It is all down to the material you want bend and the radius you want to bend it to.
I have made temporary benders for bespoke jobs in M/S ERW tube and brass tube from MDF and Plywood, including one job with (2X) 3 distinct radii over 270* of a circumference in it. This I made from sandwiched MDF cut out with a jigsaw, and I routed the edges over to seat the tube as it was bent. The bend former ran a free turning former wheel again made from MDF on a slotted lever from a fixed centre point which allowed me to form the bend with all three different radii in one long sweeping motion. It was very successful bending 3/4 od X 1/16th wall ERW tube, and this bender was used 45-50 times
I have made temporary benders for bespoke jobs in M/S ERW tube and brass tube from MDF and Plywood, including one job with (2X) 3 distinct radii over 270* of a circumference in it. This I made from sandwiched MDF cut out with a jigsaw, and I routed the edges over to seat the tube as it was bent. The bend former ran a free turning former wheel again made from MDF on a slotted lever from a fixed centre point which allowed me to form the bend with all three different radii in one long sweeping motion. It was very successful bending 3/4 od X 1/16th wall ERW tube, and this bender was used 45-50 times
heres something I posted on here a while ago about a tube bender for 16mm tube
the wooden former sounds good to me or another option is a hydraulic bender made from a few offcuts of wood and a jack, but getting the curve even would be more difficult, and stopping it from spiraling would be harder too. but it it can be used to tweak the curve if you use a wooden former
and making the former on the jack, using a forstner drill in a drill with the peice of plywood being mounted on a rotary table. that was bending 16mm dia 1.6mm wall steel tube
the wooden former sounds good to me or another option is a hydraulic bender made from a few offcuts of wood and a jack, but getting the curve even would be more difficult, and stopping it from spiraling would be harder too. but it it can be used to tweak the curve if you use a wooden former
and making the former on the jack, using a forstner drill in a drill with the peice of plywood being mounted on a rotary table. that was bending 16mm dia 1.6mm wall steel tube
AndyStobbs
Member
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Nice work optima. I still have a rotary draw bender on my make list, after the jetski, and once press is finished,
davidjohnperry
a different breed
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So then it's possible it's was just for 90 degrees and 45 bends I would like to Bend inch and half really but Adrian ur former looked machined
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graffian
Seer unto the end of his beard
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I made a former for a hilmor bender from laminated ply. I routed the convex bit/groove by rolling the
former against the fence/base of a router, a ball nosed router cut the groove nicely.
The bend had a flattened profile and the die worked perfectly. But the tube is only 1/2" cds.
former against the fence/base of a router, a ball nosed router cut the groove nicely.
The bend had a flattened profile and the die worked perfectly. But the tube is only 1/2" cds.
davidjohnperry
a different breed
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- yate/bristol
Just wanted to a see if it was possible b was just thinking about exhaust bends and things nothing exciting
