MadModder
The Shop => Tools => Topic started by: John Rudd on November 10, 2009, 02:58:25 PM
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I've seen numerous plans for sheet metal bending/box formers but none for cutting...
Anyone got any links they wish to share?
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This the only one I could find.
http://cgi.ebay.com/Sheet-Metal-Power-Shears-HowTo-Build-PLANS-Drill-Attach_W0QQitemZ360201503007QQcmdZViewItemQQimsxZ20091026?IMSfp=TL091026199005r32975
Harbor Freight sells an 8" 18 guage aluminum capacity for about 140 US.
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Tinkerer,
Seen that one not quite what I was after....but thanks any way :clap:
Looking for something along the lines of a treadle type but on a smaller scale :scratch:
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Can't find plans for a treadle shear, but I found one for the lathe. Pretty neat concept.
http://cgi.ebay.com/Sheet-Metal-Shear-Roll-Type-Lathe-Accesory-HowTo-PLANS_W0QQitemZ360025130536QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item53d32b8628
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Thanks T....I'll keep looking or else bite the bullet and
buy one...
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John,
I think the trouble in making one yourself would be the shear itself, both parts would need to be ground to get the angles and edges sharp enough. Especially since the blades would need to be hardened. A milling cutter wouldn't stand a chance.
I have one of the 3 in 1 machines, and even though it works, it does none of the jobs particularly well.
http://www.axminster.co.uk/sessionID/QOL/product-Axminster-305mm-Sheet-Metal-Worker-23311.htm
You would be better off getting a small dedicated one, if they are available.
John
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John,
both parts would need to be ground to get the angles and edges sharp enough. Especially since the blades would need to be hardened.
I have one of the 3 in 1 machines, and even though it works, it does none of the jobs particularly well.
http://www.axminster.co.uk/sessionID/QOL/product-Axminster-305mm-Sheet-Metal-Worker-23311.htm
You would be better off getting a small dedicated one, if they are available.
John
John,
I thought perhaps that the shears might need to be hardened and ground... :scratch:
I'd considered one of the 3-in-one machines, Engineer's Toolroom advertise then for £145 I think...What put me off was there's little info on the net about how they perform... From what you say, it looks like I'll have to keep searching...
The thing is the price of the T-I-o machine looked very attractive...It's going to cost me around the same sort of money to build a box pan folder alone...
Thanks for your opinion :beer:
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John,
I am not saying that they are bad, but they are very limited and rather difficult to set up for each job.
Everything has to work from one handle, so as you can imagine, for rolling it is turn thru 360 degrees, whereas for shear and bend, it is only a partial movement. Each part cannot be disconnected, so as you are rolling, the guillotine and bender are working at the same time.
You can get small rolls and benders seperately, but I don't think that small bench shears are generally available. None of the facilities on the 3 in 1 are as good or as controllable as you would get from 3 individual small machines.
John
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i've got an old one that was home made (saw someone chucking it in a skip!).
if you want i could strip it down and measure all the parts :thumbup:
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Hello John
I have had one of these for many years, the way they are made could be done in the home workshop.
http://www.mjallen.co.uk/library/catalog/Sheet_Metal_Working/rmt_gabro_guillotine_%20notcher%20_folder.pdf
They are the bees knees for sheet metal.
I do not mean for you to by one!, but to copy, all of it is prefabricated the blade can be made.
If you can weld it makes it even easier but if not just extra bolts and drilling.
Close up photos could be sent with dimensions.
Trev
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i've got an old one that was home made (saw someone chucking it in a skip!).
if you want i could strip it down and measure all the parts :thumbup:
Jim,
I couldnt possibly expect you to do that....How about a photo? That would give some idea of 'doability'
I think the main issue is going to be how to harden the cuttings edges....
@ trevatxtal,
I think I may have come across the site you linked :scratch: The notcher guillotine would be ideal for cutting printed circuit boards for me, but a pit on the pricey side methinks...Thanks to all who have contributed.. :beer:
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I'm glad you guys started this thread. I've been looking for a Circle shear. They are awfully expensive!!! It will make my spinning go a lot easier. I think I can make one with the roll shear plans on Ebay. I'll keep everyone posted.
Wes
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Another option for cutting metal is a pin router. For you fellas with a mill and RT, it should be an easy task. Even your woodworking router table can cut to metal to patterns you use for a guide.
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Even your woodworking router table can cut to metal to patterns you use for a guide.
Now there's an idea....I could just use a hss cutter... :thumbup:
What's a pin router? :scratch:
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heres some pics
(http://i58.photobucket.com/albums/g270/jimmyocharlie/DSC00136.jpg)
(http://i58.photobucket.com/albums/g270/jimmyocharlie/DSC00137.jpg)
(http://i58.photobucket.com/albums/g270/jimmyocharlie/DSC00138.jpg)
(http://i58.photobucket.com/albums/g270/jimmyocharlie/DSC00135.jpg)
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Jim,
Thanks for the shots....Not quite what I had in mind...Thinking along the lines of the treadle type
Thanks anyway :thumbup:
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atleast i didn't take it pieces!! :lol: :lol:
its a great tool :thumbup:
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Now there's an idea....I could just use a hss cutter... :thumbup:
What's a pin router? :scratch:
[/quote]
A pin router can be either up spiral or down spiral. It is a high speed bit for cutting fiber, plastic or aluminum. It is used in aviation with patterns for cutting stacks of parts to send to the stamping presses or the form brakes. You can get them with a bearing on top to follow a wood or other material pattern.
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John,
We have a large treadle guillatine at our club. Will take some pics next time I am there if you like. Should be on Tuesday.
Nick
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John,
We have a large treadle guillatine at our club. Will take some pics next time I am there if you like. Should be on Tuesday.
Nick
Nick,
Thanks, its a starter for ten...