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Thread: Inches to MM's?
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16th June 2011, 10:04 PM #1Member
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Inches to MM's?
G'day Guys, I have taken delivery of my USA built Romaxx WD-1 CNC Router. I have hooked it up to the computer, installed the makers XML file and have the machine up and running (sort of?) using Mach3. I can jog the machine and I have managed to run some of the sample files that came with the set up, I have even managed to take a simple Ferrari logo and dancing horse through my CAM program and ran it with a V cutter. My primary aim with the machine is make guitar bodies, necks, inlays etc. My question is how do I convert everything from inches to MM's? I changed the native units in Mach3 to mm's and then got totally confused in motor tuning to the point, I dumped Mach3, reloaded and dropped in the supplied XML file to start again. How do I get CAM files done in mm's to run Mach3? Cheers Paul.
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16th June 2011, 10:21 PM #2SENIOR MEMBER
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For your machine.
Go to: Config - Motor Tuning
You'll need to convert all your inch settings to mm as well as the native units.
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17th June 2011, 12:11 AM #3Member
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Hey Chris thanks for your reply, I was over thinking it! Just did a T-Style body stl file I found and ran it through my Vectric Cut3D CAM software, did all the measurements and tool paths in mm's and saved the post processer or G code in "G Code arcs inches" loaded it into Mach3 and ran it with a pencil in the collet over a piece of mdf, all good now. Man how steep is the learning curve? I have not even began to look at the CAD side of things yet, cheers anyway, Paul
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26th June 2011, 08:14 PM #4Intermediate Member
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Have thought about a convertion calculator
Hi,
Have thought about a convertion calculator, Calculated Industries from the USA make one which is inexpensive and converts millimeters to inches and decimal inches as well as actual fractions and back again, it's called "Construction Master".
Using CNC equipment and plans etc., converstions happen all the time, also being able to convert from Decimal Inches to actual Fractions and back as well as millimeters is a godsend.
If you have an iPhone they produce the same calculator as an iPhone App, which is what I use, the app is under US$20 and is downloadable for instant gratification and has a help file built in as well.
The calculator was designed for carpenters as well as the building/construction industry.
If I get a plan from the USA it is a toss up whether it comes as fractions or decimal fractions, so when I get it I convert all the imperial measurements to their metric equivelants and it's a breeze with the iPhone app., I have saved many more times the cost of the app through not making mistakes in the first place.
Give me a yell if you need the URL and I will send it, but Google should find them without any trouble, because they only make calculators their website is well worth a visit.
Hope this helps
Roger
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