JoelP
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| posted on 28/5/06 at 11:06 AM |
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tube notchers
im hoping to order one of these imminently, current target is the £70 one from chester tools. But it only goes up to 45 degrees, has anyone spotted a
cheap 60 degree one for sale in the UK? Protools have them but they are $200 and $300, and obviously being in the USA they would incur import tax.
Cheers!
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nitram38
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| posted on 28/5/06 at 11:27 AM |
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Don't you just cut the angle at 30 degrees but the other way around?
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JoelP
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| posted on 28/5/06 at 11:41 AM |
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there is no other way round with most notchers!
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nitram38
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| posted on 28/5/06 at 12:14 PM |
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What I mean is rotate the pipe!
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JoelP
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| posted on 28/5/06 at 03:27 PM |
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that would still be 30 degrees... you would have to secure the pipe at 90 degrees to normal, like i have to do with my bandsaw to cut tight angles.
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nitram38
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| posted on 28/5/06 at 04:13 PM |
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Still don't see what you mean. 90 degrees minus 30 is 60.
It all depends where you measure from.
Anyhow, both Demon Tweeks (£89.10) & chester uk (£70.50) have a delivery time of 6 weeks.
I ordered mine from demon originally as their website said 3 days delivery. After 3 weeks they told me that it would be a further 6 weeks due to the
manufacturer redesigning the item!
I cancelled with them and found chester uk and they told me 6 weeks. No bullsh*t from them about manufacturer redesigns!
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JoelP
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| posted on 28/5/06 at 04:41 PM |
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well, thats a bit of a bummer...
as for the angle thing, how can you turn the tube 90 degrees, it would be sideways in the jaws. You would have to turn it end to end, which is 180
degrees. You couldnt use it to chop a super tight angle, which a lot of trangulation might require. For instance, in the picture below, you couldnt
cut the black pipe at that angle, however you turn it.
 
Rescued attachment notcher.JPG
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nitram38
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| posted on 28/5/06 at 04:56 PM |
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Not a good picture, but couldn't you cut it here instead?
[img][/img]
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JoelP
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| posted on 28/5/06 at 05:52 PM |
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that would be a different angle! Very different, plus i dont think they can adjust upwards anyway. There, it would be identical to 30 degrees down.
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JoelP
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| posted on 28/5/06 at 05:53 PM |
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ie the same as this:
 
Rescued attachment notcher1.jpg
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Browser
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| posted on 28/5/06 at 08:48 PM |
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I can see what Nitrams' getting at. He means, cut it at 30 deg and, if you were welding it in the position shown on the diagram i.e. running
bottom left to top right at 30deg from vertical and into a 90deg corner formed by 1 horizontal and 1 vertical tube, then weld it to the horizontal
pipe not the vertical.
At least I think that's what he means
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JoelP
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| posted on 28/5/06 at 09:01 PM |
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that would be possible, but its not always into a corner. Good point though, that would solve many problems. 
my brilliant diagram was actually a picture of the cutter itself, with the different angles shown!
[Edited on 28/5/06 by JoelP]
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MikeRJ
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| posted on 28/5/06 at 09:05 PM |
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However you rotate the tube, a 30 degree cut is still a 30 degree cut, it can't suddenly become 60 degrees without physicaly mounting the tube
at an extra 30 degree angle before you make the cut.
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JoelP
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| posted on 29/5/06 at 01:53 PM |
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so bumpety bump, surely with all the engineering greatness of the UK (ha...) there must be more than two suppliers with a 6 week lead time?!
Madness... They seem common as muck pondside.
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Viper
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| posted on 29/5/06 at 02:08 PM |
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How much notching have you got to do?
personely i would have to be doing a hell of a lot to warrant buying a machine to do the job..
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nitram38
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| posted on 29/5/06 at 02:15 PM |
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I am going to build my second project, based on the ariel atom chassis. As this will have minimal panels, the chassis will be the bodywork and on
show. Therefore I am going to tig weld it.
Good tight joints are vital to look good.
My first car (my avatar) was relatively locost.
My next one will be better.
I have already got my rodends and mounting brackets sorted:
 
Description
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DIY Si
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| posted on 29/5/06 at 02:26 PM |
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For notching tubes, if you only have a few, could you use a pillar drill, vice and a hole saw?
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Viper
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| posted on 29/5/06 at 02:50 PM |
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I was going to sugest the "tubemitre" software...
works a treat
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nitram38
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| posted on 29/5/06 at 02:51 PM |
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That is all a hole notcher is.
A clamp with angles written on an adjuster, plus a holesaw chuck.
It just holds everything steady.
You method would work but requires more setting up.
The notcher is easier to set up.Click
[Edited on 29/5/2006 by nitram38]
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DIY Si
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| posted on 29/5/06 at 02:52 PM |
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I'd forgotten about that. Anyone got a copy that a mac can run? Changed from a 'normal' pc and lost it.
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Viper
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| posted on 29/5/06 at 03:01 PM |
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dont know about the mac but heres the PC version.
http://www.ihpva.org/people/tstrike/tubemiter.exe
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JoelP
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| posted on 29/5/06 at 03:02 PM |
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nearly everything i will make in future will be in round tube, plus right now i have about 40 tubes to notch for my front end, plus more throughout
the rest of the car. I have notched a few to date by drilling through 19mm tube with a 16mm drill bit, cutting and grinding it to fit, but that is no
good for doing angles. All my trangulation really needs a proper notcher. Tubemitre is a great program, but i cant be arsed doing them all by hand!
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Wadders
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| posted on 29/5/06 at 06:17 PM |
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There are a few different plans floating around on tinterweb to make your own, think rortys site might be one. if i was to make one i think i'd
be tempted to use a rotabroach cutter instead of a hole saw.
Al.
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JoelP
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| posted on 30/5/06 at 08:13 PM |
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rotabroach looks very mean. How easy is it to use a lathe for hole cutting?
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MikeR
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| posted on 30/5/06 at 09:39 PM |
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If you can adapt the tool post to hold the tube and it can take that sort of force of the chuck being pushed onto it (well it onto the chuck &
can't see why i wouldn't) then the lath would be fine.
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