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Author Topic: all toolpaths being magnified  (Read 2082 times)

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all toolpaths being magnified
« on: December 20, 2014, 08:19:24 AM »

I am a newbie and starting with a basic set up. I am using ventric 2d cut, mach3 on a small 6040z table. I have spent a lot of time setting up as per the mauals etc but now I have turned on and loaded my toolpaths I have the following problems and cant seem to see where I  have gone wrong.

All the axis are magnified. If the maach 3 says that the spindle has moved 230mm on x axis it has actually moved 290mm. same on y axis. on z axis programmed for 9.7mm mach 3 says travelled 9.7mm but has actually travelled 11.5mm.

It is probably something basic but have got myself bogged down as to what I should be looking at. (ventric,mach3 or machine set up.

Please help ??? ??? ??? ???

Offline Tweakie.CNC

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Re: all toolpaths being magnified
« Reply #1 on: December 21, 2014, 06:24:57 AM »
It sounds to me as though you do not have your 'steps per unit' set correctly. The Mach3 manual http://www.machsupport.com/help-learning/product-manuals/ section 5.5.1 explains the basics and section explains the automatic procedure you can use to calibrate each axis.

Hope this helps.

Re: all toolpaths being magnified
« Reply #2 on: December 21, 2014, 06:37:50 AM »
Thanks Tweakie

I was looking at that late last night. My set up manual that came with the machine said enter 400 steps per unit in mach 3 I will go and try the auto procedure now and see what happens.
Much appreciated.