Best place to buy alloy plate

[binge]

Okay, Bit of a strange one. I need to make a bracket up for my new caliper. Thing is, I have no idea where to get some alloy plating from? Its something I have never had to buy.


I need a piece of alloy plate, 4mm thick. And has to be at least 2" x 5".


I probably sound bloody stupid. But I have no idea where I can pick this sort of thing up?




Ben

[MaybeGuy]

your local engineering college?
i know the one i went to had scrap that was more than big enough for what you need it for. plus they just give it away.
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[Kickstart]

Hi

Can be difficult to source small quantities of metal. To be honest your best bet might well be to just try Ebay.

Failing that have a hunt round for model engineer suppliers.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[binge]

I've tried ebay funnily enough. And I couldnt really bring anything up. Plus I wasn't 100% on what to search for.

Alloy plate?

4mm Alloy plate?


It brings up pages and pages of wheels, handlebars etc.




The Engineering college is a good idea.

[G]

What kind of alloy specifically .

There are various metal places on the internet.
I spent ages trying to find a decent local one... couldn't find any with in forty miles... then got a reccomendation of a good place that's about a mile away from me!

Googling for 'aluminium sheet' came up with plenty of possibilities for that if you can't find anything locally.

[BanditsHigh]

Try searching for aluminium plate on Ebay ... loads of plate

Business, Office & Industrial section is your best bet.

Another place which should be able to help is Metal Supermarket ... far as I know there are branches all over the country.

[MaybeGuy]

[owdamer]

This any use?

4mm Aluminium sheet

or

250mm squares

[binge]

Cheers Owdamer. I think thats what I need.

Basically I need to make a bracket the same as this one, But holes 2 and 4 need to be 10mm further away form holes 1 and 3. If that makes sense.

All 4 holes will need to be threaded to M8 also.


https://www.ooracing.com/store/images/uploads/FAST_ACE_BRACKET.JPG


Will they be okay to do this?




Ben

[owdamer]

[MaybeGuy]

i would have thought it would be a bit of a shit idea to make it out of ally if it is what i think it is...

rearset mounting bracket?

if so, id use something not quite as soft so the threads arent so brittle, as rearsets are put under quite a bit of stress.
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[D O G]

It's for his front caliper if i'm not mistaken, and yes, I would probably use steel for that too. Then again, I haev never built anything like this, ever, so an aluminium alloy may well be sufficient.

[G]

4mm sounds rather thin for anything put under stress if you're not using steel.
Also rather thin to be threading as well.

[loply]

I can't envision any part of a braking system which could be attached with a 4mm aluminium bracket? I may be totally wrong mind.

Is 4mm the thickness of the part you posted the pic of?
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Yamaha SZR660 Caution to the wind, the throttle pinned!

[owdamer]

Alloy is fine, after all, the mounting lugs on the fork legs are cast alloy. There are a few examples of what other people have done on the FJ owners site. Now if these things can stop an fj that weighs as much as a small car i'd say they're pretty strong.

https://www.fjmods.btinternet.co.uk/BrakeUpgrades.htm

https://www.fjmods.btinternet.co.uk/Pictures/D014.jpg

[MaybeGuy]

[Azonicben]

I've used emachineshop.com in the past, you dowload the app, a basic cad program design exactly what you want select your material and they machine it and post to you, can be expensive for some bits it's worth. Getting a few more made as the unit price comes down flog the extras on eBay
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Cbt-23/09/07.....Theory-16/09/08.....Das passed 10/10/08.....
Current bike- GsxR750 K4. Broken: Cbr400rr (Nc29) Sold: Hyosung GT125R

[G]

[MaybeGuy]

just a thought... why not helicoil the threads then you could tighten it a bit better than the aluminium could cope with
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[owdamer]

Ok, general opinion seems to be that 4mm is too thin. As I can't remember the exact sizes of the ones I have made then maybe steel would be a better option.
What bike/brake caliper are you using? And how come all the holes need tapping? Usually the lug on the fork is just drilled and the caliper is threaded.

[NiteMare]

being as it's a caliper hanger and it's only 4mm thickness you're looking for i'm of the opinion i'd definitely go for steel (i've no idea if 4mm ally would stand the braking compression stresses)...

you really need to speak to someone that knows the grades of ally to use if you're detemined to use ally..

4mm steel plate can be got from just about any fabricators out of thier scrap bin probably as a gift ( just wander around your local trading estates and ask), make sure you ask first as you'll most likely be welcomed back when you decide to do another project

drilling and tapping will be up to you, if there is enough clearance then a nyloc nut and bolt will do fine
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it ain't broke...

i ain't fixed it enough

[binge]

Okay, Lets set the record straight.


This

https://www.ooracing.com/store/images/uploads/FAST_ACE_BRACKET.JPG

Is a proper brake caliper bracket, made by OORacing, FOR their 4 pot caliper. It is alloy, and it is 4mm thick. I know this because Its on my desk beside me at the moment.

I need a bigger one, Because this bracket is made for a 190mm disk.

So why can I not use the same material again?




Ben

[binge]

Also bearing in mind it is a 55kg bike it is going on here, Not a 160kg CBR or anything.

Also, There is a kit to fit Mountain bike brakes (Hope brakes) to these bikes. Surely if a Mountain bike hydraulic brake is enough, Then 4mm alloy plate is enough?



Ben

[binge]

[SoND]

4mm Al isn't that thin, it will still be quite strong.

If there is nothing stopping you go as thick as you can. Keep an eye on it and if it's too thin you will see it deform.
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Go back to bed - You have no rights - "Streetfighters ~ Mainstream motorcycling's crackwhore sister."