joins

bigtrev · 19 Mar 2006

for a school project i need to make a cabinet wat are the best joins i can use to put it together, i am using MDF material

Scrit · 21 Mar 2006

Commercial furniture makers use dowel and glue or KD (knock-down, cam and dowel) fasteners for flat-pack furniture. Smaller workshops use biscuit joints (look-up Lamello, biscuit jointer, etc) or sometimes screw items together using a glued joint and carcass screws.

If you can get access to one I'd suggest using a biscuit jointer.

Scrit

big-all · 21 Mar 2006

i agree with scrit

dowels cams or buiscuts or you could machine dovetaills with a router and jig

the cheapest option is [assuming its half inch-12mm]mdf is
6x1.5"screws a 3 or 3.2mm drill avoid the 25mm each end
butt joint the components screws every 50 to 75mm pilot the full depth of the screw through both components
use the pozi srewdriver bit for your countersink glue and screw together hand tighten the last 2 turns

if the edge does delaminate slightly push glue into the crack ,unscrew the screw a few turns block and clamp then tighten screw

JohnD · 21 Mar 2006

You could do a lot worse than use the joints that you have been taught at school, unless you bunked off the woodwork classes or weren't listening

Scrit · 21 Mar 2006

JohnD said:
You could do a lot worse than use the joints that you have been taught at school, unless you bunked off the woodwork classes or weren't listening

Which joints would they be, John?

JohnD · 21 Mar 2006

I don't know, I wasn't in his class.

But if, for example, the teacher has spent three weeks demonstrating and instructing use of the biscuit jointer, he will be disappointed with screwed butt joints.

Scrit · 21 Mar 2006

JohnD said:
I don't know, I wasn't in his class.

But if, for example, the teacher has spent three weeks demonstrating and instructing use of the biscuit jointer, he will be disappointed with screwed butt joints.

Just curious - I was taught mortise and tenon joints, but then MDF wasn't invented until later.......

Do they teach the use of biscuit jointers these days? And why should you need to do what the teacher says? After all industry doesn't work the way teacher says.....

Scrit

JohnD · 21 Mar 2006

I guess, if you wanted to earn some coursework marks, it would help to demonstrate that you'd paid attention to what you were taught.

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