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Messages - Ryanstewart86

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General Mach Discussion / Re: Taig Mill not that precise Please Help
« on: July 29, 2008, 02:18:18 PM »
Hi guys

Thank you so much for your advice and help it has been much appreciated, my mill is dc servo driven so dont know about its step loss, the motors drivers just return an error and stop the motors if it misses a line on its encoder, as for the gibs i have checked out Nicks website (thank you anyway BobsShop) and followed his method and feel that they are fairly well adjusted. jimpinder im from the Uk too down in hampshire ;) not really up to scratch on my imperial system but i think it is 40 thousandths, not sure if its right i divided 0.01 by 25.4 and got 0.0003937 which i assume is 40 thousandths excuse my ignorance! as for the steps per unit what do you actually put in the box? 60000? my servo driver aparrantly multiplies the encoder output by 4.

For the backlash i tried your method but for some reason once set the compensation over exaggerates and continues to move into the stock the other side of the cutter and mess up the nesting design. I must say though however i do find it difficult trimming my Taig, getting the headstock tangent to the table, its a bit of a neusance the swivvel head.

RICH, i shall post some pictures soon of my jet, as i bought most of the parts and am just assembling it, i am however going to try and machine a KJ66 diffuser. ill do this and post it up, but for now i have found this great little website this guy has on making a Wren 54 turbine it shows him machining all the parts, check it out http://www.5bears.com/gt.htm

Many thanks guys for your help

Any more tips would be really appreciated!


General Mach Discussion / Taig Mill not that precise Please Help
« on: July 26, 2008, 04:24:30 PM »
Hi Guys

Having trouble with my cnc Taig mill, have mach3 latest revision and i am trying to machine a precise part for a model jet engine talking sizes at 0.01, in mdi i type in a value say 6.37 for example and my machine will travel that distance on the odd occasion other times it will be short by 0.02 or more, backlash is enabled. With the backlash that sometimes ends up out by .1 or so when it comes back to its original point. Can someone please help me? Also when trying to cut a circle with backlash enabled the circle ends up with a short for a better word "nobble" on both sides due to the backlash overcompensating? im not sure.

Many thanks


General Mach Discussion / Steppers stalling occasionally
« on: March 22, 2008, 01:20:38 PM »
Hi All

Been playing around with Mach3 and my new Taig for some time now but am having problems, i can jog my machine on all axis fine, everything is wired up correctly, driver test gives a clean line with only a few spikes now and then, am running a laptop Dell D600 1.6Ghz 576mB ram, but occasionally the motors just stall every time or they will miss a step.


Running on 3 260Oz/In steppers, 50V Drivers

Velocity: 700
Accel: 27
step pulse: 9
on all axis

1/2 Sherline pulse mode is on
Went through Arts XP tweak guide and done all operations!

I took my Taig apart, cleaned and re lubed it, adjusted the gibs to a good spot i feel. When i come to machining a part it will stall either when it rapids or cutting at the calculated feedrate of 298mm/min through aluminium at a 1.5mm pass at 6900rpm. also all of the axis miss steps and mess up my expensive stock.

Can someone Please HELP AAAHHH!! lol :)



Post Processors / Mastercam 9 & 10X Mach 3 Postprocessor
« on: September 09, 2007, 08:46:50 AM »
Hi guys

i found this mach3 postprocessor for mastercam 9 and i converted it to the mastercam x format through the mastercam software which it allows you to do so and here it is:

Mastercam 9 format: http://cnc.novalab.org/files/MACH3B_for_MC9.zip

Mastercam X format is attached

It supports 3 or 4 axis machines!

Hope you find it useful!


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