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FabproHelp, Your point about the difference from day to day is one that I hadn't mentioned, but yes I get that too. Could I ask what are the cutting conditions you are using,ie power, Freq, duty, Gas, nozzle gap & focus? I have made some improvements to the cut but what I have now is that I...

Thanks to for everyone for replies,Still getting dross but have made some improvements, will post if I get better result, still appreciate any assistance.

Thanks to evans1089 and jetrep for your replies. Jetrep, I am not sure what you mean by "head cone" I have only different focal length lenses or nozzles sizes to choose from. I have 5" lens and 2.5mm nozzle fitted when cutting this material.

Hi All, Would really appreciate any advice on cutting 2.4mm thick (13g or 0.093") galvabond sheet. Im not sure if you call it "galvabond" or some other similar product name,in the States, but just to be clear, what I am talking about is a hot dipped zinc coated steel made up of...

Thanks a lot Laserdog, I really appreciate that. i will give these settings a whirl.

Hi, would really appreciate it if someone with a similar laser cutter to mine ( Amada FO-3105 4000w) can assist me with some cutting conditions they use, for materials that I have not previously cut. 1. 12 gauge (0.1046") sheet 2. 11 gauge (0.1196")galv sheet 3. 11 gauge (0.1196")...

Thanks to everyone who replied to my question, much appreciated. Laserlogan , your machine is very similar to Amada FO-3015 that I run, so the settings you suggested worked pretty well except that i am still getting a very small burr. I was able to go to 3800 watts and fiddled with speeds...

Thanks laserlogan, Really appreciate getting some settings that work for someone else on the same material on similar machine. I wont get a chance to try these out for about a week, but when i do, I will certainly post the result

Ok, thanks. I will try a new lens, ironically thats my last 5inch focal so will get a new one and spare in and let you know if that solves issue.

Hi, Hope someone can help me, I am doing some test cutting out 2" square pieces. I Cant understand why 3 of the 4 sides of the square cuts are excellent and one leaves a burr. It is always the same side. At first I thought that the nozzle was not centred, but checked it several times and...

Thanks Sgaffney you input is much appreciated, unfortunately it didnt resolve issue. I neglected to mentioned In my first post, that i tried various focus length settings but none removed the burr. As per your suggestion, I tried the 2.5mm nozzle and tried many speed and feedrate settings, was...

Hi, I would really appreciate any suggestions which can help me solving the issue I have cutting 5mm(3/16")316 stainless. No matter what I do or adjust I can't get rid off the burr on the bottom of the plate. I have no issues cutting 3mm (1/8") or less 316 stainless (which is what we usually cut...