8x4 router build. Steel base & Aluminium gantry gantry

[JAZZCNC]

Nice on Dean, I had originally drawn something similar in, but I was wondering if the extrusion would sit level incase a bit of warp creeped into it.

The way I have it I thought may compensate for any un level beams or warping

No I wouldn't have it like you have at really because any bending or warping of the cross beams will directly affect the profile and rails and take away accurecy. I drew it without the cross beams more to show the single piece top rather than 2 pieces but other than that it's meant to be just same as you drew it.

I wouldn't do it your way at all because it will make getting rails on same plane harder and any movement of cross beams will directly affect profile. The surface bed sits on isn't so critical as you will surface the bed parallel to the spindle but the surface the profile/rails sits on must be flat and on same plane each side or allow for the profile to be adjusted onto same plane.

[D-man]

I'm not sure I follow what your saying pal... I understand removing the vertical from the centre and putting a cross base in as the sides. Are you saying not to use the 9 cross members on the top now? If so what would be the best way to mount the extrusion

[D-man]

Is this the board you mentioned Dean? Looks a nifty unit

[Clive S]

Is this the board you mentioned Dean? Looks a nifty unit

I don't think you put the link in but here it is :- http://www.zappautomation.co.uk/elec...-step-dir.html there are 3 models. ..Clive

[D-man]

I don't think you put the link in but here it is :- http://www.zappautomation.co.uk/elec...-step-dir.html there are 3 models. ..Clive

Oops! morning brain fart!

This is the link http://www.cs-lab.eu/en/produkt-18,2...onnectors.html but its the same Clive cheers pal

[IanS1]

I think Jazz is saying that using the 9 cross beams will make levelling the extrusion very difficult. In effect you will be creating 9 points along the length of the machine which will need to be perfectly level to get the extrusion flat. Looking at Deans drawing you can place the extrusion directly on the frame length or even better, do away with the extrusion and fit the rails directly to the frame.

[D-man]

I think Jazz is saying that using the 9 cross beams will make levelling the extrusion very difficult. In effect you will be creating 9 points along the length of the machine which will need to be perfectly level to get the extrusion flat. Looking at Deans drawing you can place the extrusion directly on the frame length or even better, do away with the extrusion and fit the rails directly to the frame.

Yeahi understand that bit, however bolting the extrusion to the box section would pove difficult without the need for brackets along the extrusion. The way i was looking at it was i would be able to bolt directly into the extrusion bu going into the crossmembers to add the nuts.

Something i havent mentioned, and i apolagise is the fact i would of been bolting the cross members onto the top of the frame. for ease of removal and any smimming that possibly would of been needed...

[D-man]

This is what i mean

[charlieuk]

Oops! morning brain fart!

This is the link http://www.cs-lab.eu/en/produkt-18,2...onnectors.html but its the same Clive cheers pal

You need the ip-s if you are going to run two motors on the x axis. I got the m for my build and it does seam a very nice bit of kit and made a lot of other things a lot easer to do with all the built in features.

[D-man]

You need the ip-s if you are going to run two motors on the x axis. I got the m for my build and it does seam a very nice bit of kit and made a lot of other things a lot easer to do with all the built in features.

You running servos too Charlie?