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Author Topic: LazyTurn cuts where I don't want it to cut  (Read 16937 times)

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Offline RICH

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Re: LazyTurn cuts where I don't want it to cut
« Reply #10 on: November 10, 2010, 06:39:53 AM »
My bad, I was thinking about taking the backlash out on the initial move before cutting from a homed position.
Maybe thie will help....
Turn a diameter down using backlash compensation such that you use the equivalent number of moves  and see how
all turns out relative to desired finished diameter. That will give you idea of how much you should leave so you could
manualy  add a few lines of code for tweaking the profile down to size.

BTW, it doesn't take much on a taper to end up having the tapered end go deeper  or extend out when put into
into the recieving piece.

RICH
Re: LazyTurn cuts where I don't want it to cut
« Reply #11 on: November 10, 2010, 12:21:21 PM »
Hi Rich:

Unfortunately, i am using SmoothStepper, and waiting with bated breath for teh plugin with backlash comp enabled-due any day now!

Thanks again,

Andy

Offline RICH

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Re: LazyTurn cuts where I don't want it to cut
« Reply #12 on: November 10, 2010, 05:10:50 PM »
Hmm......no comment on the SS backlash
I will say this, your machining will only be as good as your lathe system.

RICH

Offline ART

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Re: LazyTurn cuts where I don't want it to cut
« Reply #13 on: November 10, 2010, 05:20:39 PM »
Yup, I do have confirmation of backlash working in the SS, I too suspect it wont be long before thats relased, I know for a fact it is written and seems to work OK..

Art

Offline RICH

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Re: LazyTurn cuts where I don't want it to cut
« Reply #14 on: November 10, 2010, 05:28:12 PM »
Geepers, only one thing to transparently bitch about and you guys go and take it away.  ;D
Back to the side I go..... :D

RICH

Offline ART

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Re: LazyTurn cuts where I don't want it to cut
« Reply #15 on: November 10, 2010, 06:04:56 PM »
lol...

  Just shows to go ya..

Art
Re: LazyTurn cuts where I don't want it to cut
« Reply #16 on: November 10, 2010, 08:02:08 PM »
 ???
Re: LazyTurn cuts where I don't want it to cut
« Reply #17 on: November 11, 2010, 06:27:17 PM »
I made the draing a little large in both X and Z extents, so that the tool will move farther positive in both axes, thereby taking up the axis backlash when it moves "back" to the spot where it actually will cut.

The roughing toolpath looks good, but when I set up a Fine path with the following parameters, it again tries to take a chunk out of the piece:
Clearance: 0
Final Pass: 0.001
PerPass: 0.005
Tolerance: 0.01

It also looks like the fine path does not cut all the way to teh profile.

What am I doing wrong?


Andy

PS I see thatthe Zoom Out and Zoom IN in the menu pulldown are backwards
Re: LazyTurn cuts where I don't want it to cut
« Reply #18 on: November 11, 2010, 06:48:12 PM »
...and even stranger, when I post and open the tAP file in Mach3Turn, it appears as if the Roughing path is in Diameter mode, while the Fine Path is in radius Mode!
Re: LazyTurn cuts where I don't want it to cut
« Reply #19 on: June 23, 2011, 07:46:01 PM »
Try grabbing the yellow arrow and draggin it to the left to indicate a different start location..

Art