![]() The plasma stream is vaporizing metal and the process generates a fine metal dust. The water is there to serve several purposes. CNC Plasma Water TableĪ water table is one that has water under your cutting slats (the pieces of metal the sheets your metal sits on). If you have the thought of doing this on a regular basis, buy the 4×8 and save yourself a ton of headaches. 0.1 inch off in any direction could ruin a cut. It is possible to make this happen, but it has the potential to go bad in a hurry if you’re not very careful and very precise. You can index or move the sheet on your table to allow this to happen. One quick note on Indexing sheets – this is where, for example, you have a 4×4 table and need to cut something that is 4×8. If you buy one size bigger than you think you will need, you’re probably going to be pretty safe. After a couple weeks of cutting, they realize how sweet CNC Plasma cutting is and they want to make a million other things, but they have a 2×2 table and are stuck. Unless you’re on a submarine, I would skip this size.When it comes to size, really consider what you want to do and what you may do in the future. I hear so many people say, “I’m only going to cut these small widgets so I don’t need a big machine”. I try to steer people away from the 2×2 table because it’s small and easily outgrown after a very short period. Most of the cost is in the electronics, controllers, CNC Plasma software, computer, and plasma cutter, and the components. The cost difference between sizes is relatively small. This is difficult question and you need to really think about this one. These sizes coincide with common steel sheet sizes being 4×8 and 5×10 feet. Larger industrial tables can be configured to nearly any size the customer needs. Tables for the hobby, general fabrication, and light industrial come in a few common sizes: 2×2, 4×4, 4×8, and 5×10 feet plasma table. ![]()
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December 2022
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