Female T-dolly?

Jan 25, 2012 20 Replies

I tried a couple of methods of putting a 1/4" curl along a 9" edge of



24 gauge sheet metal but I didn't like the results. My ball pein hammer/steel rod method took too long and created dents, and my steel rod-on-hand-break method took too long and didn't work so well. I thought of cutting a tube in half and putting it in a wooden v-block kind of thing for support and hammering a rod against the sheet metal to shove it into the half-tube, but making a good, complete curl like that didn't seem like a sure thing, so I started leaning toward making a square bend instead of a round curl. But now I'm thinking that a T- dolly and matching anvil might be worth a shot. Would I need a custom die for this or do they make such an anvil/U-block/female T-dolly type thing?

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Use your bead roller first.

:)

--Winston

Oh!

Use your Magnabend. See from 6:50 onwards.

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--Winston

How tight do you need? You can make pretty good bends using some common angle iron with a large fillet in the corner and a top die made of steel plate with round stock welded to the edge.

That's basically what I tried, but I used a cheap aluminum brake. I had to keep clamping and releasing the dowel because I didn't have the angled keeper shown in the video, which slowed me down, and the aluminum brake warped as I bent the steel. Part of the problem was the very tight (1/4") roll I was making, but I think I'll make some adjustments and try it again.

Yeah, I'm going to fortify my aluminum break and try it again, except without the welding..

Wait a minute...the keeper IS angled! I just didn't think of using it to keep the dowel in place! Now my clamps won't get in the way when I try it again.

I'd just bolt a thick piece of angle iron (upside-down "V") to a workbench to clamp down on your workpiece. That should be strong enough to not flex and make a tight bend with the right radius.

Wow, complete with an ItaloAfroed babe and '80s disco music background. What a treat, Winnie. Thanks for the link!

Here's a very cool HF mod. Nigh onta CNC. wot?

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-- The most powerful factors in the world are clear ideas in the minds of energetic men of good will. -- J. Arthur Thomson

Oops, one for Barry, too. Rolled wire edge.

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-- The most powerful factors in the world are clear ideas in the minds of energetic men of good will. -- J. Arthur Thomson

Whups. See below.

That is fwigging brilliant!

Bup!

That's the video I thought I was linking to, previously. Not the clay fab thingy. Whups. :)

--Winston

Let's see...$179 for the 18" metal fabber on sale ($129 Inside Track Club price! 7x10" Lathe - $399 ITC this month), $29 for the 1/2" VSR drill, and a couple bucks for 1x1/8" CRS strap. Sucha deal! (iffen you need a dimpled dohickey or ten)

Oh, suuuuuuuuuuuuure.

-- The most powerful factors in the world are clear ideas in the minds of energetic men of good will. -- J. Arthur Thomson

I was thinking more in terms of a springboard for other uses.

Ferinstance that 'cable-activated foot pedal drill trigger doohicky' would be the cat's pajamas for my Large Coil Winder, should I ever actually make one.

(...)

I've got a better excuse than most folks. :)

--Winston

I can relate to that concept. The major problem is that I already

-own- a round tuit.

He's ruining that drill. He should have used a router.

I'll try to remember to do that. :)

--Winston

Nah, that's a -kitchen- item, not a shop tool. To wit:

Dear All,

This afternoon I was foolishly left alone in the kitchen with a seemingly simple task, whip some cream.

It all started when I was attempting to whip some whipping cream into, oddly enough, whipped cream with a hand whisk, and it seemed to require far too much effort on my part. I am sure a Neander would be quite happy with a hand whisk, but I was looking for a Normite way to get this done. Now I realise that most people have a power hand mixer, or what ever they are called, but I don't have one.

I started thinking, hmm, how much different could one of those things be from a router. All a hand mixer is, is a motor with a Jacobs chuck like socket for whisks. Now if you think you know where I am going with this, you are probably correct. I got out the dial callipers and the shaft of the hand whisk was exactly 1/4". Woo Whoo, first problem solved, I can use the standard 1/2" to 1/4" bushing. I go out to the shop and take my three and a quarter horse Hitachi M12V out of the router table and back into the kitchen. Using my 21mm and custom ground thin 23mm Craftsman wrenches, I chuck up the whisk. Next problem, speed. I measured the diameter of the business end of the whisk and consulted my router bit speed chart. It said I should use

18,000 RPM. The only question left was technique, clockwise or counter clockwise. Since I was doing an inside cut, I decided on the standard counter clockwise.

I fired up the big green monster. Good thing the M12V has a soft start feature, because even with my elbows braced on the countertop, this is a heavy and unwieldy router to freehand in the air, but the torque was still more than I was prepared for and I almost lost it. Okay, here we are, full power. There was a quick blur of chaotic white liquid filling the air and as the blur subsided I quickly realised the bowl that previously held two cups of whipping cream was now virtually devoid of cream. I powered down the router. My face, glasses and upper body were covered in cream, as were two thirds of the kitchen. My better half, alerted by the unusual tool noise and loud cursing coming from the kitchen, walks in to ask just what the hell I thought I was doing. I wipe off, change clothes and come back to explain myself and clean up a very large mess.

Once I explained what I was attempting to the young lady I thought was about to become my ex-wife (I could see it in her face, as she thought, I cannot believe I actually married someone this stupid, Dad was right), who is standing in front of me with a look of such total disbelief that I would have previously thought impossible to display, I was told that 18,000 rpm was a little too high an rpm for a whisk, and that a variable speed cordless drill would have been the correct choice of tool for this task. We were out of whipping cream at this point, so I will have to wait until after I have a chance to go to the store tomorrow to find out if the cordless drill works any better. Damm, now that I think about it, it would seem like the drill press is the way to go, then I could be just like Martha Stewart, Emeril or the Cute short blonde lady with the bob haircut who has two shows on the food network and have one of those big stationary Kitchen Aid looking mixer thingies, Hmmmm.....

Live and learn.

Thanks,

David.

May you live in Interesting Times - Ancient Chinese Curse.

--From the Wreck, APRIL 1, 2001.

-- Creativity can solve almost any problem. The creative act, the defeat of habit by originality, overcomes everything. -- George Lois

(...)

Excellent! :)

I was looking for an adapter to change my mixer to a rattle-can shaker. Perhaps not.

--Winston

A reciprocating saw can be adapted to shake aerosol cans, and someone put a plan set in the Dropbox within the past several years (for an old, unused saber saw, IIRC). There is an adapter available for the larger recip version SawzAll type saw, but fabricating an attachment isn't prezactly rocket surgery.

An orbital sander (non-rotating pad only, or please make video) such as the rectangular pad electric models or jitterbug type air powered can be adapted fairly easily for aerosol cans, but also small fitted-lid cans.

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