ply/mdf joint options

stuart noble wrote:

MRMDF - usually pale green is much nicer to use and delaminates less. The outer surfaces seem to have a better seal on them and take a paint finish much better. It does cost more but not a lot 25% say?
There are some special screws and matching drill bits for screwing into the edge of MDF - sorry can't remember the make. Whatever you do, don't screw into the edge with out drilling a pilot hole first. Watch out for turbo gold type screws too. The rifling in the threads tears MDF to dust and has very little strength - useless if you have to take a screw out and re-fit for any reason.
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On 04/08/2013 17:32, Bob Minchin wrote:

I suspect you might have meant confirmat screws.
http://www.screwfix.com/p/confirmat-screws-m7-x-50mm-bzp-pack-of-100/36633
I have used them myself to build a couple of melamine-faced board cupboards. Easy enough to use if you can ensure you drill holes nice and square - and the right diameter.
--
Rod

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polygonum wrote:

Yes those are the ones. Certainly drilling square and exactly in the right place is essential to decent results with any screws. Biscuits are useful to hold alignment in one axis but add no strength
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Dowels. Depending on how thick the ply is. Or screws and glue depending on how strong it has to be. It will never look professional with ply unless you glue on edging strips.
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On 04/08/2013 10:00, Jim K wrote:

glued in dowels, or rout a rabbit in one to take the other
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On 05/08/13 08:58, Rick Hughes wrote:

I've got a dog that routs rabbits.
You can borrow him if you want.
--
Ineptocracy

(in-ep-toc’-ra-cy) – a system of government where the least capable to lead are elected by the least capable of producing, and where the members of society least likely to sustain themselves or succeed, are rewarded with goods and services paid for by the confiscated wealth of a diminishing number of producers.
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On 05/08/2013 09:40, The Natural Philosopher wrote:

Probably illegal to rout a rabbit in some parts .... and maybe mandatory in public schools
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