2 Attachment(s)
Re: First engraving test :)
Following assistance from John S (thanks John) I have done some more engraving, this time using code generated in V-Carve and using my 3mm 30deg 0.2mm carbide cutters, the results were mind-blowing - razor sharp lettering, no burrs on the edges, could not be better and proves the machine is totally capable of detail work...
Attachment 18278
It was not without issue though as I am 99% certain that the first plunge took the ridiculously fine tip off the tool as the first pass at Z-0.25 was air-cutting, pretty certain i could see the tip come off as i was watching pretty closely. The cuts above were done after this though so the results didn't suffer, maybe too fast a plunge rate?
So, in the last few days I now have a working setup of Vectric, nice software it seems, still reading the manual ;) It is intuitive though and have got a test text file I was messing with, setup some tools, hopefully using the same settings extracted from Johns' file but this time using a 3mm 60deg carbide bit as this angle seems the most common?
The results were nowhere near as good and I was bit disappointed with them - there are burrs on the edges and the cuts are generally crap under a magnifying glass looking like they were hacked out with a machete ;)
Attachment 18279
So, obviously lots to learn here, any pointers???
Re: First engraving test :)
Quote:
Originally Posted by
Davek0974
Following assistance from John S (thanks John) I have done some more engraving, this time using code generated in V-Carve and using my 3mm 30deg 0.2mm carbide cutters, the results were mind-blowing - razor sharp lettering, no burrs on the edges, could not be better and proves the machine is totally capable of detail work...
Attachment 18278
It was not without issue though as I am 99% certain that the first plunge took the ridiculously fine tip off the tool as the first pass at Z-0.25 was air-cutting, pretty certain i could see the tip come off as i was watching pretty closely. The cuts above were done after this though so the results didn't suffer, maybe too fast a plunge rate?
Great!
Its a common problem- about the tip i mean. I am extremely conservative with the plunge rate of V cutters, even in wood.
2 Attachment(s)
Re: First engraving test :)
Bit better today, dropped the feedrate to 500 and plunge to 150, this was the same file - new one on top, yesterdays' one below - a much better result but still a tiny burr on a couple of the verticals.
Attachment 18280
15mm high 'T' this time with a flat-plane limit set of 2mm so it bottoms out. Came out very nicely i think, picture does not do it justice, iPhones suck at macro work ;)
Attachment 18281
Re: First engraving test :)
Re: First engraving test :)
Yep, its a home-build minimal quantity coolant system - I'm running on paraffin/oil at about 95% paraffin, I put 500ml in the tank when i built it and its only gone down about 200ml so far and i've done quite a lot of cutting and messing about ;)
You can just about see the film on the metal when cutting, I turn it up a little for deep cuts.
