New Build-12x6ft Plasma Table

**Boyan Silyavski** · 28-06-2015

What i said in the long post before is still valid, so maybe read it a couple of times more, cause you will get there if you think more and more deeply

for example:

-Hiwin 20 size rail/ or MGW15/

If it was ok Hiwin 15 size rail, i would have told you that. The savings from HGR15 to HGR20 are very small if none, but with the small blocks on the 15 size rail you will have much more problems designing the thing.

I was talking that if you design it properly you could even use 4 rails and only 4 blocks in the whole machine. Using the long HA blocks, where each block is 90mm long. And for sure 4 rails and 8 blocks if you dont feel like minimalist design is for you. After all if you buy from China 4 bearing blocks more, it will be only 120 euro more in the whole build.

As you were told, there is no problem connecting Hiwin Rails, especially in plasma build.

-While on a small table speed is no problem, on such a size you need things to be really fast. I would go as far as to say that you need 800ipm real life speeds with serious acceleration there . Cause bad things happen on plasma when deccelerates and you have crappy THC . You will need to cut thin stuff something like more than 10000mm/min

-Again - THC is a must

So , make the machine separate from table. Forget the stupid table for now. Invest money and effort in the actual machine. Later having THC you can support and cut the shit on a basic frame, which once you start earning money can upgrade as per your desires.

How hard could be to sit down and design a modular sides design from that 75x75x5 or whatever. Like at the photo bellow. As i said personally will use at least 100x100x3 . You are talking about 3.6meters long+ 4 legs 1m high each side. But size really it does not matter if you use THC and simply is strong enough not rack the gantry.

-simple 1 beam gantry with one rail. Similar to the video before. Forget about the monstrous machines from pictures. they are made to route and drill also, driven by powerful servos, etc...