Quote:
Originally Posted by Leo.G
Now I have to look into linear rails and I'm guessing I need them a little larger than my total sheet capacity. I'm thinking 1 metre for the laser head movement and a 700 odd linear rail either side to give the other rail (on whichever axis is which) smooth, even travel in and out.
Neville what do you use for air assist?
Is it a stand alone compressor built into the machine (small air pump)?
I need to look into air assist and cooling too. I recently gave away a portable air conditioner I could have used to chill the water and knocked back a water chiller which takes the big bottles. I had no need of either then (spare air con unit I was given just after I'd bought one and never used).
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That's why I never throw anything away! (It's also the reason my 150sq. m. shed and its' mezzanine are full...)
I have a smallish pump sending air to the head. It's a bit awkward to get at under the body but looks like a tyre inflator on steroids, or an industrial fish tank aerator maybe.
Fumes as mentioned are removed by a cycloidal extractor to the outside.
For the frame/bed, if I was building your set up, I wouldn't go past this one:
https://youtu.be/24RslguGy58?si=iXhwFQHRCttM8T6N
It is what I'm making to upgrade my cnc router and will take around 1000 x 850 mm.
I've been 3D printing for days to make all the connectors, etc.
If you don't have a printer already, mine cost $360 on Amazon.
If you prefer belts to leadscrews, his version3 has them. I had all the bits already so went with V2.
Neville
LSO