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Well, I'd really love to buy a 4'x8' table cnc router but I wonder how much would cost one of these. I saw many people go for an excitech cnc router, are they the best bet for a chinese cnc router?
Well, he's been quick!
I have a quotation but options make it expensive.
By example, the 1224 CNC router itself cost $6000 which I can afford, but if I add a dust collector, mist cooling system, vacuum table and a chinese vacuum pump, it makes more than $8000. That makes it expensive. (+ freight and taxes)..
I wonder what is the use of a vacuum table as well, if someone could told me (here is my lack of knowledge). I thought I knew what it was for but i am not sure. And what about the mist cooling system too. What is it for exactly.
The mist coolant system is for cutting metals like aluminium and brass, Helps to lubricate the cutter and keeps it cool. The vacuum bed is great for holding material on the bed while its machined. You can use clamps instead but then you also have to make sure the machine doesn't hit the clamps
well, that was what I thought it was, but what if the router bit goes thru the panel and hit the table, that is worse isn't it?? Is it that precise that it cuts the panel and stop exactly before hitting the table?
Normally there is a waste sheet that goes underneath the material that you are cutting. It gets cut into slightly when you machine something but can be used several times then thrown out. The other option is a thicker waste sheet that gets resurfaced once it gets too many cuts in it.
We use a 2.5mm MDF waste sheet at work, it gets used for a couple of jobs and then we use a new one.
so it is the waste sheet that is vacuumed to the table and not the wood panel itself. This is what I dont understand...
The vacuum pulls through the waste sheet and holds the material to the table also, on the thicker waste sheets it is best to machine both sides to let the vacuum pull through better. Painting the edges also helps.
OK, so the wastesheet has to be drilled so the vacuum pulls through it.
I think I will just not get the vacuum pump. It s too expensive..
Well the vacuum pulls right through a sheet of MDF without holes in it. We can stack up four sheets of 4mm on the machine at work and they all hold down. With the thicker waste sheets you need to machine the hard surface off both sides of the MDF to let the vacuum suck through, but you still don't need to drill holes in that either.
The vacuum pumps use a lot of power, but they are handy if you are doing lots of machining. If you are just making a few things then clamping works fine, it just takes a little longer to setup.
Hi zorglub, The machine is great value for money.
We have had ours for a few months now and have learnt how to cut through our workpiece and only just skim the surface of the spoilboard. Our spoilboard is 12mm thick and we have only had to re surface it once so far.
If you can spare the extra money it is worth your while to get the vacuum pump. Why spend time fitting clamps everywhere when you don`t have to?
You will also need a dust extractor or you will have MDF dust everywhere in your workshop. Also you must not breathe MDF dust into your lungs as it contains formaldehyde.
Your Excitech will be a great investment in my opinion, and you can be assured that Taney is very articulate in his dealings.