DaveOB Posted March 20, 2012 Report Share Posted March 20, 2012 I have a glass engraving tool and have engraved glassware, but I don't seem to get a great finish. Does anyone recomend using a nib depth guide? I find to engrave glass I have to put alot of pressure down in nib which chips the edges of lettering. I have a Gravograph is400 Thanks Dave Link to comment Share on other sites More sharing options...
Lee Posted March 20, 2012 Report Share Posted March 20, 2012 you should need very little pressure on glass, most use a feather touch attachment or equivalent. the diamond should be a rotating one, not the one you use on metal & you should lubricate the surface of the work with polish. & wear goggles when doing fizzy pop bottles (in case keiths reading) Welcome to the forum. Lee Link to comment Share on other sites More sharing options...
ANDY Posted March 20, 2012 Report Share Posted March 20, 2012 you also need to slow down the speed of the X/Y travel. use the slowest setting this allows the diamond to dig in and welcome Link to comment Share on other sites More sharing options...
keithm Posted March 20, 2012 Report Share Posted March 20, 2012 you should need very little pressure on glass, most use a feather touch attachment or equivalent. the diamond should be a rotating one, not the one you use on metal & you should lubricate the surface of the work with polish. & wear goggles when doing fizzy pop bottles (in case keiths reading) Welcome to the forum. Lee Always use goggles or glasses when engraving with the motor on Better safe than sorry Link to comment Share on other sites More sharing options...
hibsjo(SCO) Posted March 20, 2012 Report Share Posted March 20, 2012 Marino is selling glass diamonds at Datron where you can engrave at normal speeds. i prefer to laser at SUPER FAST SPEEDS carry on! Link to comment Share on other sites More sharing options...
DaveOB Posted March 21, 2012 Author Report Share Posted March 21, 2012 thanks to you all. So I will set x & y speed on 3m/s which is my slowest What would I set spindle RPM to ? Also Lee, sorry but what is a feather touch attachment? I have researched Gravograph and they have a teflon swivel nose, but I am just unsure if this is what I need. And finally (yes I promise) what sort of polish do you recomend to lubricate? Dave Link to comment Share on other sites More sharing options...
Gray Posted March 21, 2012 Report Share Posted March 21, 2012 http://www.u-marq.com/product.php/44/0/light_touch And Mr Sheen or Pledge. Also see here viewtopic.php?f=4&t=7539&hilit=glass+engraving Link to comment Share on other sites More sharing options...
DaveOB Posted March 22, 2012 Author Report Share Posted March 22, 2012 Again thanks.Sad to say I have learnt more in a few emails than I did off Gra******* Australia when they delivered my new machine. I have to engrave glass tomorrow. So will put all in place, I just don't have the light touch guide but will be ordering. Awesome Link to comment Share on other sites More sharing options...
Lee Posted March 22, 2012 Report Share Posted March 22, 2012 On crystal you can't get away with out the light / feather touch. On glass back off the machines pressure as far as it will go & you might get away with it. Lee Link to comment Share on other sites More sharing options...
Guest simon Posted April 8, 2012 Report Share Posted April 8, 2012 hi ive got a is400 volume and get scratches on a glass as it does not seem to go up and down any help please Link to comment Share on other sites More sharing options...
hakeemz Posted April 8, 2012 Report Share Posted April 8, 2012 hi simon welcome to the forum..how are you setting your Z value? via software or manually? seems to me you are not assigning a value to z which means your spindle is not lifting in between letters Link to comment Share on other sites More sharing options...
Guest simon Posted April 10, 2012 Report Share Posted April 10, 2012 thanks will try that Link to comment Share on other sites More sharing options...
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