Bronco78th Posted January 22, 2021 Report Share Posted January 22, 2021 Hi All, Just wondering if anyone has any suggestions to help minimise the coating on black coated tankards flaking while engraving. I do artworks and funny enough most of the time the artworks come out great, but im having difficulty with basic text especially when it gets quite small. Just flakes the coating and ive tried various tankards from various suppliers with mixed results and various settings. Just wondering if there is anything more I could do to help it. Im using diamond drag and a Umarg CX5 machine. Kind Regards, John Link to comment Share on other sites More sharing options...
Michael Posted January 22, 2021 Report Share Posted January 22, 2021 I used to get this a lot on anodized hip flasks using my Mastergrave Universal, gave up in the end. Best engraved with a laser engraver rather than drag diamond. Vinny and JamesST 2 Link to comment Share on other sites More sharing options...
Matthew Blackman Posted January 22, 2021 Report Share Posted January 22, 2021 Hi John, have you tried Engraving with the diamond drag rotating (spindle motor ON ) and then passing over it twice, as the 2nd pass clears the coating out of the Engraving. I have found this has helped in the past, but it does all depend on the coating itself. Hope this helps. Link to comment Share on other sites More sharing options...
Michael Posted January 22, 2021 Report Share Posted January 22, 2021 If the coating is flaking then it's probably not adhered to the base metal very well but laser engraving is normally ok. Link to comment Share on other sites More sharing options...
Bronco78th Posted January 22, 2021 Author Report Share Posted January 22, 2021 Many Thanks for help. Ive started experimenting with a super fine cutter I have. I don't particularly want to blunt it because I use it quite often for Sterling Silver Cufflinks etc, but it appears to be the key here as the cut is so fine it doesn't flake the coating as much and im getting much better results. The next question is anyone know where i can obtain a new one of these cutters as id be happy to experiment more if there was no risk of destroying my only one. I think I got this one from Umarq themselves but they are closing shop now and im not sure ive seen this style of cutter openly sold anywhere. Kind Regards, John Link to comment Share on other sites More sharing options...
Matthew Blackman Posted January 22, 2021 Report Share Posted January 22, 2021 Hi John, if you PM me your number I’ll give you a call regarding diamond cutter. Cheers. Matt Link to comment Share on other sites More sharing options...
pee Posted January 22, 2021 Report Share Posted January 22, 2021 2 hours ago, Matthew Blackman said: Hi John, if you PM me your number I’ll give you a call regarding diamond cutter. Cheers. Matt Hi Matthew Can you let me know the cost of one of these aswell, 120 degree. I've seen some on ebay for £25, but not tapered as the one above. Cheers Link to comment Share on other sites More sharing options...
Matthew Blackman Posted January 23, 2021 Report Share Posted January 23, 2021 19 hours ago, pee said: Hi Matthew Can you let me know the cost of one of these aswell, 120 degree. I've seen some on ebay for £25, but not tapered as the one above. Cheers Hello. I have DM'd you. Cheers. Link to comment Share on other sites More sharing options...
Vinny Posted January 26, 2021 Report Share Posted January 26, 2021 On 1/22/2021 at 2:56 PM, Matthew Blackman said: Hi John, have you tried Engraving with the diamond drag rotating (spindle motor ON ) and then passing over it twice, as the 2nd pass clears the coating out of the Engraving. I have found this has helped in the past, but it does all depend on the coating itself. Hope this helps. It also depends on how new/sharp the diamond is. Link to comment Share on other sites More sharing options...
Bronco78th Posted January 27, 2021 Author Report Share Posted January 27, 2021 Hi All. Many Thanks for the help. I got the job done and got some setting down. which were. Brand New Diamond cutter...I think mine was blunt which didn't help matters.... Slow down the Feed to 4.0 m/min , 1.00mm depth Chip 0.5mm. (creating 2 passes) I also added oil though doubt this did anything other than give me a positive placebo effect no noticeable Flaking, good job done. Kind Regards. John keithm and Matthew Blackman 2 Link to comment Share on other sites More sharing options...
grahamparker Posted January 27, 2021 Report Share Posted January 27, 2021 Nice Job. Link to comment Share on other sites More sharing options...
Auto Key Wizard Posted January 27, 2021 Report Share Posted January 27, 2021 1983-2020 = 37 years duty k4mrc 1 Link to comment Share on other sites More sharing options...
Flash Posted January 28, 2021 Report Share Posted January 28, 2021 19 hours ago, Auto Key Wizard said: 1983-2020 = 37 years duty "Over 33 years active duty," Maybe he had a break from active duty...... Link to comment Share on other sites More sharing options...
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