big budget cnc

[Lee Roberts]

That used machine looks very promising.

I know its also so close to me i could reach out and touch it, would be prefect project for me.

[Desertboy]

I know its also so close to me i could reach out and touch it, would be prefect project for me.

If I wasn't so skint right now I would be buying this today ;)

At prices like that it's not worth building an 8*4 I'd just buy one I have no doubt £1k and you can get that working and £2k and you can get working like new.

[Clive S]

If I wasn't so skint right now I would be buying this today ;)

At prices like that it's not worth building an 8*4 I'd just buy one I have no doubt £1k and you can get that working and £2k and you can get working like new.

I don't think its 8x4 its 3mtr x 2mtr bed so probably bigger still.

[Desertboy]

I don't think its 8x4 its 3mtr x 2mtr bed so probably bigger still.

I always think of these as 8*4 machines lol as that's what I mostly would use it for but the ability to do 10*5 would be very useful but only occasionally. If i do build my own I will build it to have a workspace of 3m*1.6m because you never know when you need those extra inches ;) Space is not an issue to me at the moment within reason I could fit 3 of these machines in ;)

This machine would be spot on for what I want, I would then convert what I'm building now into an aluminium machine for cutting molds for vac forming and use the big one for wood only.

[pet30]

the frame could i make it out of 50x50x3 mm or do i need to use bigger and heaver steel?
i found this shop in holland i think the price is ok because i need supported rails of 3 meter long

https://www.hardware-cnc.nl/en/shop/...ted-round-rail

[Clive S]

the frame could i make it out of 50x50x3 mm or do i need to use bigger and heaver steel?
i found this shop in holland i think the price is ok because i need supported rails of 3 meter long

https://www.hardware-cnc.nl/en/shop/...ted-round-rail

You need to draw this up in Cad otherwise you will waste a lot on money quickly. What do you mean by "the frame" its hard for people to advise you without the CAD drawing.

[pet30]

with frame i mean the base of the machine,

i don't have cad program just sketchup i am a woodworker so for drawing kitchens etc thats good enough but i can draw very accurate in sketchup

[Clive S]

the frame could i make it out of 50x50x3 mm or do i need to use bigger and heaver steel?
i found this shop in holland i think the price is ok because i need supported rails of 3 meter long

https://www.hardware-cnc.nl/en/shop/...ted-round-rail

Anyway getting back on track with your build. I would start with the design of router bed first and then decide what you need to stand it on. Or build it all in one piece. In my opinion 50x50x3 is not strong enough for what you are trying to achieve

[Desertboy]

Anyway getting back on track with your build. I would start with the design of router bed first and then decide what you need to stand it on. Or build it all in one piece. In my opinion 50x50x3 is not strong enough for what you are trying to achieve

2 years ago I had to build a punching machine (Hydraulic) for plastic I built it from 3mm box section AND it's not strong enough I have to run it about 1/4 the speed I built it to run to get decent results and I'm punching Polyprop. Any faster and the holes are not accurate! I heat the punchs to 230c as well to reduce stresses using nozzle heaters from injection moulding machines.

I would think a minimum of 7mm would be needed if I wanted to make a steel router.

I was shocked the stresses of punching plastic the aluminium casting we made wasn't strong enough to resist the forces and we had to recast in steel and on the first attempt the steel shrunk too much so we had to recast and grind to fit.

If I had a cnc machine then would have been a lot more fun lol.