Thread: The Dark Satanic Mill
Thanks for that John. LOL. Up to about an hour ago I thought that there were only minor dialect differences in G-code and those would only be found in the heady areas of Haas / Fanuc type territory. I also thought that the ISO standard would be the main one in use! :-) WRONG! ...and as I have no ambitions to purchase an 8 axis PA 8000 e2, I'll certainly wander over to Amazon grab the handbook, sounds like a useful read.
At the moment I'm not certain if I'll use Mach 3 or something else so I've only had a quick look through the Mach manual. If I do end up using Mach3 then I'll obviously use their G-code spec.
It's idea good idea to learn G-code so you can monitor and understand or keep track of whats happening while cutting but it's getting less and less needed has Cam gets better and Post processors become more refined.
A lot, if not most, of the 'hobby' CAM programs tend to do almost everything with G0,1,3 anyway presumably because there aren't many cases where it makes a difference. For instance V-carve doesn't even use G81 to drill, just uses G1 and G0.
Just yesterday I was chamfering some large rectangular aluminium parts, but due to the parts having taken so long to cut and the MDF bed the chamfers were uneven. Easily solved by measuring the actual width of the chamfer in the 4 corners and adding Z moves to those points to make the tool move on an inclined plane to compensate for the bed...didn't need any fancy codes, just a bit of common sense. Look them up if/when you need them.
The book would be handy as a reference but I doubt you would use it alot. I am learning G Code as I go along. At work we use custom ESSI and the only time I dig out the manual is when the machine does something wrong and I need to check the program or when the CAD/CAM guys want some advice on something.
Well this isn't going to be much of a build thread as I've decided to buy one that someone else has built!!
June 10th delivery all being well :-)
Head is full of Cad stuff now !!
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