Hello everyone , I'm new on this forum and fairly new to engraving.
I use the trotec speedy 400 and I am interested in inlays of different types of wood.
How do I adjust for the thickness of the kerf? Any suggestions would be appreciated.
Hello everyone , I'm new on this forum and fairly new to engraving.
I use the trotec speedy 400 and I am interested in inlays of different types of wood.
How do I adjust for the thickness of the kerf? Any suggestions would be appreciated.
Getting the best focus will give you the thinnest kerf.
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Rabbit RL_XX_6040-60 watt Laser engraving/cutting machine Oh wait its a 3D Printer my bad LOL
Lasercut 5.3
CorelDraw X5
10" Miter Saw with slide
10" Table Saw
8" bench mount 5 speed Drill Press
Dremel, 3x21 Belt Sander
Ed,
If you do a search in the Forum on Inlay you will get a slug of good hits on doing inlay with lots of details.
Essentially though, you need to determine the size of your kerf for that lens/material combo. You can do that by focusing carefully on a sample of your material, then getting your speed and power the way you want it for a good cut. Then cut a vector square for the material. Once done, measure the width of the square hole you just cut. And then accurately measure the width of the square piece you just removed. The male and female parts if you will. The difference between the measurements is the kerf.
The hits you get with your forum search on SMC will go through all the details you need.
Dave
900x600 80watt EFR Tube laser from Liaocheng Ray Fine Tech LTD. Also a 900x600 2.5kw spindle CNC from Ray Fine. And my main tool, a well used and loved Jet 1642 Woodlathe with an outboard toolrest that helps me work from 36 inch diameters down to reallllllly tiny stuff.
Hello Ed,
There is a great instructables on calculating Kerf, by Adam ANT, works a treat!
Darren Wilson
Tool Control Solutions
Gerber Syst. 48 CNC Router
Epilog 36EXT
MAX MPS-20 Galvo 20w MOPA Fiber
Roland LEF-200 UV Printer
Wisely/JPT 60W MOPA
Ed....apologies. I just realized I told you to measure the inside width of your square hole, and the outside width of the square you cut out and subtract the one from the other and that was your kerf. I should have finished that thought and said you need to divide that number by two and that would be your kerf.
Sorry for the omission. Like leaving an ingredient out of a recipe!! <grin>
900x600 80watt EFR Tube laser from Liaocheng Ray Fine Tech LTD. Also a 900x600 2.5kw spindle CNC from Ray Fine. And my main tool, a well used and loved Jet 1642 Woodlathe with an outboard toolrest that helps me work from 36 inch diameters down to reallllllly tiny stuff.
And once you know size what you are targeting, you can use the contour function in CorelDraw to add whatever is needed. Also, because the cut of laser beam is angled (due to shape of focused beam), if you cut one piece right side up and the other upside down, they will mate perfectly with a bit of pressure.
Longtai 460 with 100 watt EFR, mostly for fun. More power is good!! And a shop with enough wood working tools to make a lot of sawdust. Ex-owner of Shenhui 460-80 and engraving business with 45 watt Epilog Mini18.
For doing inlays, the formula is very simple:
for the inlay, you cut it needed size plus tool width.
for the cavity, you cut it needed size minus tool width.
Since the tool is the laser beam, start with .006" as tool width and experiment.
to add or subtract for tool width in Corel, use the contour tool and create a single outside contour of the original shape, the offset value will be half the tool width, in this case .003". Then create a single inside contour at .003".
cut the inlay with the outlined shape, cut the cavity with the the inlined shape.
IF your beam width is in fact .006", the part should fit the cavity perfectly. If it's too tight or too loose, adjust the offsets by .0005" increments
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ELEVEN - rotary cutter tool machines
FOUR - CO2 lasers
THREE- make that FOUR now - fiber lasers
ONE - vinyl cutter
CASmate, Corel, Gravostyle
I use the method described by John.
Mike Null
St. Louis Laser, Inc.
Trotec Speedy 300, 80 watt
Gravograph IS400
Woodworking shop CLTT and Laser Sublimation
Dye Sublimation
CorelDraw X5, X7
Thank you all for your input, gets me one step closer to my final product.