So I have been cutting mostly artwork out for the last few months and things have been going well. I have noticed a little bevel but honestly I have mostly been using 14 & 11ga, so even if the part was not just to look pretty the taper hasn’t made itself real noticeable. I did alot of experimenting with 1/4" plate few months back and thought I had sort out my issues but now I am not so sure, that or I have a new issue.
I am currently gearing up to cut parts to build a tilting belt grinder and want to make sure I have some accuracy, everything is cut from 3/8" hot rolled steel. I started with a small part to check settings and it seems that no matter what I do I get taper on the straight cuts in the X direction. I have tried slowing things down, adjusting kerf, adjusting cut height, changing consumables, altering start points, adjusting the torch etc.
I have checked alignment of the table several times and tried adjusting the torch and gantry and I will be honest that given the taper you would think my torch alignment is off or my material isn’t flat but when I check the level-ness of the material at any given point or the angle of the torch my tapers should theoretically be opposite what they are and any additional adjustment to the torch gantry to fix taper in the X direction will result in the gantry binding.
Thoughts? Could it somehow be something with my posts?
Reminder - I have the Crossfire Pro with a Hypertherm PM 85 with the machine torch (short).
375 plate parts.pdf (477.0 KB)