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Thread: Holding templates in place
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15th February 2005, 07:40 AM #1Been here a while
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Holding templates in place
Hi,
I'm trying to route a pattern in a large panel, and I'm having trouble keeping the template in place. The shape/position means that conventional clamps cannot be used, nor can I drill/screw the template in place. The bit has to travel both around the outside, and inside of the template.
I have tried double-sided tape (Bear brand) as used by carpet installers, which is recommended on a number of US sites/books. However, the glue is flexible enough so that a few mm of movement still occurs. This is not acceptable.
So, my question is, how can I hold a template in place, in the middle of a large panel, without clamping it? Is there another brand of double-sided tape people have had success with?
Thanks,
steve
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15th February 2005 07:40 AM # ADSGoogle Adsense Advertisement
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15th February 2005, 12:57 PM #2Senior Member
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Double Sided Tape
Try Tesa double sided masking tape.
Glen.
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15th February 2005, 09:23 PM #3GOLD MEMBER
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If your template is MDF you could spot glue it with PVA in a few places with toilet or tissue paper between the template and workpiece as well . This will allow you to more easily separate the template from the workpiece but you will probably destroy the template in the process of removing it .
Peter
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15th February 2005, 10:01 PM #4
Template Tom
Hi Steve, I'm surprised you have'nt yet had a visit from Template Tom a known guru in templates and their applications etc,etc.
Have a decko at the following ,it may assist.I hope it helps!
http://www.wa1.quik.com.au/tod
CheersJohnno
Everyone has a photographic memory, some just don't have film.
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15th February 2005, 11:29 PM #5
Try hot melt glue and seperate by cutting through the glue with thin wire, similar to fuse wire. The glue should 'roll' up by rubbing with your fingers. Sand well to remove any residue left on the panel...
Jim
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16th February 2005, 10:56 AM #6Senior Member
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Coming right out of left field here - been thinking about this a wee bit - may work...
A vacuum box for holding your work.
A tray say 600 x 450 x 50mm with pegboard as the top supported inside to stop collapsing on you, ported to your shopvac.
This will produce almost 14 pound per square inch on your worksurface.
Mask off the unused holes with plastic sheet like business file covers - or similar.
2nd use could be as a sanding box??
Regards
Sandy across the ditch
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16th February 2005, 11:37 AM #7Originally Posted by Sandy Johnston
Regards
Neil.Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways - Chardonay in one hand - Strawberries in the other, body thoroughly used up, totally worn out and screaming - "WOO WOO...What a ride"
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16th February 2005, 11:57 AM #8Senior Member
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Sorry - 14.7lbs sq in is the max you can expect.
We are working Vacuum here
Thats why neumatics is so good.
regards
Sandy across the ditch
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17th February 2005, 09:50 PM #9
Routing in a vac box is a great thing however as you rout the vacume strength lessens greatly.
I use a vac box all the time but I use other fixing methods to secure the template the vac box is primarily for dust extraction.
Perhaps another solution is to break the template into two parts.
using the outside of the blank secured by cleats for the first pass the shaped plugs that lock into some of the routs you have made in the first pass to secure the second template.
On the matter of DS tape scotch VHB is great stuff but don't go overboard with it or you won't get it apart.
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18th February 2005, 07:26 AM #10Been here a while
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Originally Posted by soundman
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18th February 2005, 11:32 AM #11
I sometimes even use brads just to hold a template to the workpiece... as long as the marks can be easily filled and will not be in a prominent visible position... works well and no movement. It might not be suitable for your task, but it is another option nonetheless.
How much wood could the woodchuck chuck if the woodchuck could chuck wood?
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18th February 2005, 11:48 AM #12
There are some spray-on contact adhesives that have the prperties you need. If you spray only one piece the joint can be broken, if you spray both pieces the joint is permanent.
Brand is, uh , hang on (goes out to shed)
"Fuller Spray Bond"
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18th February 2005, 07:32 PM #13SENIOR MEMBER
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VHB is a Scotch brand DS tape that you can only get from specialist tape suppliers. They usually cut a roll to width.
I use it for sticking things to forklifts.
Last time I bought some it was nearly $300 for a roll 40mm wide and about 300mm diameter.
Its quite storng and if you want to remove it lift it slowly and it lets go a bit then lift a bit more.
Clint
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19th February 2005, 10:45 PM #14
VHB = very high bond
Is intended as the sole fastening method for various non pourous panels
Can be purchased off the shelf from lincon sentry.