Giant 20' x 3' x 2' router build

**charlieuk** · 13-08-2014

any one got any ideas to the above?

**Clive S** · 13-08-2014

Just a thought could you not bracket them to the wall? ..Clive

**charlieuk** · 13-08-2014

I was planing on bolting it to the floor i would prefer not to rely on the wall as it may well end up being moved else were were that may not be a option.

many thanks

**Clive S** · 13-08-2014

Originally Posted by charlieuk

I was planing on bolting it to the floor i would prefer not to rely on the wall as it may well end up being moved else were were that may not be a option.

many thanks

Bolting to the wall with brackets would be a quick simple fix. But if you have to move it so that it is free standing you might be able to triangulate the back of the uprights bit like an apex roof truss on end. ..Clive

**routercnc** · 13-08-2014

Looking at other designs on youtube I found this one. Different layout approach which would be stiffer than your cantilever. Bit late I know, but any ideas from here?
http://www.youtube.com/watch?v=9zYrr4jNfWI

In terms of improving what you have - I don't think you'll get very far filling the back supports, or adding angle iron. You are looking for a big step change to make a difference. As Clive suggested either bolting to the wall or adding diagonals on each end coming forward to the front of the machine and onto the floor would be much better.

Can you post a picture of the whole thing now it is generally together? You might get a few more ideas . .

**charlieuk** · 14-08-2014

unfortunately due to the size of mine it cut down the options on design options as making a beam 20' long un supported would have been all most imposable.

I have all so seen videos of that design shaking violently when the router changed directions when cutting, im pretty sure mine is far stiffer that that design all ready. i Had wondered about bracing the ends but thought that possibly making the ends stiffer than the centre would be a bad thing maybe?

I will get a few more pics this morning showing the whole thing.

best regards charlie

**JAZZCNC** · 14-08-2014

Charlie I think mentioned before that you needed diagonal bracing on the lower frame and this would help your problem quite a bit but really your easiest option is the wall.
Personally I would brace the base along its length like the black line show and try it, but at same time a few brackets to wall would cure it easy. Then if you ever need it free standing then make some triangle supports (red lines) for it which go at the rear and bolt to floor.

Also becareful with those timing belts that you don't over tighten and pull the ends of the ballscrews inwards and cause them to bend or bind. The belts don't need to be drum tight just not loose.