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Author Topic: Magnetic Clamps?  (Read 8403 times)

thething84

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Magnetic Clamps?
« on: February 25, 2014, 05:26:05 am »
Hey all. I cam across these magnetic clamps the other night and seemed a really good idea.
anyone used them. The american ones seem to be build slightly better but for what they are these are good. Also come across a york model company who make there own of varying sizes. I did purchase these of ebay the other night so waiting for them to turn up. SHould certainly make making my superstructure alot easier. Trying to hold it altogether while glueing is a pain.
 
James
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malcolmfrary

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Re: Magnitic Clamps?
« Reply #1 on: February 25, 2014, 09:36:48 am »
Any pictures or links?
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Trevor Holloway

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Re: Magnitic Clamps?
« Reply #2 on: February 25, 2014, 09:41:30 am »
I have a set of these.
The magnets are very strong and hold the items in place well whilst the glue sets, have lost one of the magnets as they are not that well held in place.
A bit fiddly to use - they have not really have earned their place yet, a couple of small open ended angle plates (like these http://www.rdgtools.co.uk/acatalog/ANGLE_PLATES.html) and some magnets would have been more useful.
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IanPal

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Re: Magnitic Clamps?
« Reply #3 on: February 25, 2014, 09:43:26 am »
Yes any pic's? Now I've struggled to get things square and finished. but they would come in very useful for the next build
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Stavros

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Re: Magnitic Clamps?
« Reply #4 on: February 25, 2014, 10:21:22 am »
Click on this link to see them.......NOW those look like Dave's new freinds think i will have to get some most definatly
 
http://www.ebay.co.uk/itm/PROSES-NEW-PR-SS-01-SNAP-GLUE-SET-SQUARE-4-MAGNETIC-CLAMPS-W-16-MAGNETS-/111093171978?pt=UK_Trains_Railway_Models&hash=item19ddab470a#ht_3722wt_758
 
 
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Tug-Kenny RIP

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Re: Magnitic Clamps?
« Reply #5 on: February 25, 2014, 10:34:35 am »

What a great idea.      :-))

Shouldn't be too difficult to make these.     %)


Cheers

ken


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Capt Podge

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Re: Magnitic Clamps?
« Reply #6 on: February 25, 2014, 01:02:37 pm »
Quote from: malcolmfrary on February 25, 2014, 09:36:48 am
Any pictures or links?

Look at the original posting, hover over "these", that's the link  :-))
 
Regards,
 
Ray.
 
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boatmadman

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Re: Magnitic Clamps?
« Reply #7 on: February 25, 2014, 01:19:01 pm »
East to make? yup!!


A bit of angle bar and a couple of neodym bar magnets ....job done! :-))
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malcolmfrary

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Re: Magnitic Clamps?
« Reply #8 on: February 25, 2014, 04:57:14 pm »
Quote from: Capt Podge on February 25, 2014, 01:02:37 pm

Look at the original posting, hover over "these", that's the link  :-))
 
Regards,
 
Ray.
So it is.  My excuse is the early morning sunlight causing me to not notice the different colour.
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a3nige

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Re: Magnitic Clamps?
« Reply #9 on: February 25, 2014, 04:59:30 pm »
Expensive!!!!!!!!!!!!!!!!!!!!
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thething84

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Re: Magnitic Clamps?
« Reply #10 on: February 25, 2014, 10:30:19 pm »
yes they are expensive. Was going to make them myself but i really couldn't be bothered. We shall see what they are like and if they are worth it. Problem with modern day angle bar is very little of it is square. In gerneral comercial steel these days is absolute rubbish. I work with both comercial and aircraft grade materials as part of my job. Comercial is pure rubbish compared to what it used to be.
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essex2visuvesi

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Re: Magnitic Clamps?
« Reply #11 on: February 25, 2014, 10:39:15 pm »
Lego works well for making 90deg angles
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thething84

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Re: Magnitic Clamps?
« Reply #12 on: February 25, 2014, 10:40:22 pm »
suppose there are alot of ingenious way of clamping and holding bits while u glue it.
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captain bligh

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Re: Magnitic Clamps?
« Reply #13 on: February 25, 2014, 11:23:05 pm »
Hi all
I remember seeing these in model boats mag and thought what a good thing thay are and thought to myself  I'll get some of them,course time went on and buy the time i'd thought about it again do you think I could find the issue with them in NO {:-{ .So was great to see them again like a couple of people have said not cheap but anything that's anygood never is I'v allways found.Going to order some right now !!
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thething84

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Re: Magnitic Clamps?
« Reply #14 on: February 26, 2014, 03:42:24 am »
well as u say captain. if it gets plenty of use its a worthwhile investment in my eyes. I could have easily made these myself to be honest with tooling i have at work. But its finding the time. I still prefer the american ones i
http://www.reynaulds.com/riteway.aspx found.
they have one in edge that you can butt up to.
 
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Martin (Admin)

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Re: Magnitic Clamps?
« Reply #15 on: February 26, 2014, 09:58:06 am »
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RAAArtyGunner

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Re: Magnitic Clamps?
« Reply #16 on: February 26, 2014, 10:15:10 am »
Quote from: thething84 on February 25, 2014, 10:30:19 pm
yes they are expensive. Was going to make them myself but i really couldn't be bothered. We shall see what they are like and if they are worth it. Problem with modern day angle bar is very little of it is square. In general commercial steel these days is absolute rubbish. I work with both commercial and aircraft grade materials as part of my job. Commercial is pure rubbish compared to what it used to be.

More likely tolerances have been increased to aid manufacture.
 
For instance to be square it can be within plus or minus 2 mm. This means it can be 4mm out of square.
 
In the old days square was square and exactly 90 degrees, no plus or minus.
 
Manufacturers cry poor get standards/tolerances changed and hey presto, rubbish.
 
 
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Howard

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Re: Magnitic Clamps?
« Reply #17 on: February 26, 2014, 10:49:15 am »
If you look in Model Boats April 2013 you,ll see a artical on how I do it .
             regards Howard.
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captain bligh

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Re: Magnetic Clamps?
« Reply #18 on: February 26, 2014, 11:02:10 pm »
I agree square is square !! there is no "that's near enough" well not in my book perhaps I've got an old head on young shoulder's  :} :}
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thething84

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Re: Magnetic Clamps?
« Reply #19 on: February 26, 2014, 11:17:39 pm »
yeh i agree. there is a little leeway but some stuff is just miles off. If it is noticible looking at it without any form of square then its wrong. Mind i work in aircraft manufacturing industry. So we do work to precision when it needs.
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derekwarner

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Re: Magnetic Clamps?
« Reply #20 on: February 27, 2014, 12:43:24 am »
....... & captain bligh says... "perhaps I've got an old head on young shoulder's" ........ %) based upon the statement "square is square !! there is no "that's near enough" ...I would suggest a sound mind on mature shoulders.......

I am not involved in plastic construction.....however see the European or the American variant of these magnetic clamps as a tremendous time saver in attaining good clean square construction :-)).......

Now...before someone complains about the price  >>:-( ........just check out the actual cost of REM [rare earth magnet] pole pieces ............Derek
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RAAArtyGunner

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Re: Magnetic Clamps?
« Reply #21 on: February 27, 2014, 02:03:02 am »
Quote from: derekwarner_decoy on February 27, 2014, 12:43:24 am
....... & captain bligh says... "perhaps I've got an old head on young shoulder's" ........ %) based upon the statement "square is square !! there is no "that's near enough" ...I would suggest a sound mind on mature shoulders.......

I am not involved in plastic construction.....however see the European or the American variant of these magnetic clamps as a tremendous time saver in attaining good clean square construction :-)) .......

Now...before someone complains about the price  >>:-( ........just check out the actual cost of REM [rare earth magnet] pole pieces ............Derek

Derek,
Good point as I was quibbling about the price. :embarrassed: :embarrassed: :embarrassed:
Martin has listed a link to cheaper ones from the US  :-)) :-)) :-))
 
Digressing, did you see the chimney demolition?
 
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derekwarner

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Re: Magnetic Clamps?
« Reply #22 on: February 27, 2014, 04:36:34 am »
RAAArty........ {-) have been involved for a number of years in the Australian manufacture of 4 pole REM transducer rings [LDVT] for hydraulic cylinders for our steel industry

May sound crazy.... %% ....but when you collect 20 baby pieces 4mm diameter x 4mm long....you must sign a hazardous material declaration :police: that you do not have a pacemaker installed.......

Quality REM pole pieces are not cheap.........I think the advertised cost for the magnet squares is a bargain  :-))

Now for all those people who think they can make their own non ferrous L  shaped squares....& have them totally square  %)........& then insert the pole pieces so they attract O0....go for it  {-)

Not only was I the designer of the 4 pole REM transducer rings :o .... I was also the inspector  :D....as 1 in 10 transducer rings had a flipped pole piece due to the strong magnetic gauss

The only way I could confirm correctness of the magnet poles was to check them against a known magnetic field as below.........

[I listened to the chimney demolition on ABC radio........mind you I worked as an apprentice for 4 years in its shadow...... so it was no great loss to me].............Derek

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thething84

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Re: Magnetic Clamps?
« Reply #23 on: February 27, 2014, 05:25:49 am »
i prefer the american one as they look better quality. However i don't know if it would be cheaper to get them to the UK to be honest for me. Plus it takes alot longer. Will see how they are. hoping the arrive today when i get home from work.
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