Benches

[rikrobson]

I'm going to make some benches next week.

I've got all the steel except to top
uprights are 100 x 100 x 4 box and the rails are 40 x 40 3 angle.

Tops will ply until I can get some 3mm steel plate.

Now the question is do I weld them or bolt them?

The top rails will be no problem bolting together as I'll have access to get a spammer on the head of the bolt as the nut is tightened. The problem will be the Lower rail as any bolt will have to be put in from the inside about 300mm in from the end.

Bolting means that they could be disassembled and moved round the unit. Welding will probably mean they'll be too heavy to move.

it's 2 separate benches one 2000 x 1000 and one 3000 x 1000

about 1000 high. The 100mm box is cut at 1120 long at the moment and may just be a higher bench than the drawing shows at 1000. It's going to be a lot of work to cut 10 lengths down 120mm with and angle grinder or hacksaw

 

[rtbcomp]

Could you use welded-on studs to secure the lower rails?

 

[rikrobson]

not got a stud welder
only mig


thought about making the legs up in pairs and put the rails up as far is i could reach. then bolt on the rear lower angle to the cross members instead of out side. Or weld the les up un pairs then bolt together.

 

[rikrobson]

like this;
http://www.mig-welding.co.uk/forum/picture.php?albumid=1134&pictureid=4337

 

[Flathead_Dave]

You could drill into the leg,then straight out the other side.Then enlarge hole with a hole saw.
Put a bit of blue tack in a socket to hold the bolt and poke it through the larger hole.
With legs that size,don't think you'd weaken them.

 

[rikrobson]

The Steel for the legs is that size because it was free

Totally bomb proof

I'll Sleep on it ans make a start in the morning or whenever i get up

 

[Archie]

Take it from someone who's made this very cock-up: don't make it 1m high! 900m is about right.

I'd weld the whole thing together unless you think there's a good chance you'll want to take it apart. Mine's made from 80x80x3 box with a 10mm top and is heavy but I've put it on castors. You could do that if you think you'll want to move it. I find it very useful.