tool threading tool doing wierd things
Posted: Thu 08 Nov , 2012 0:03 am
Hi all.
I’m pretty new to CNC turning and the Denford software.
I’ve pretty much got to grips with setting up material offset, and using a RHK to turn basic items.
I’m now looking at threading but i seem to be having a major problem.
I don’t know whether it is something I’m doing wrong so ill run through what I’m doing step by step, and maybe you can see where I’m going wrong.
Essentially I’m testing turning a piece of parallel 14mmOD bar to M14x1mm before adding it to a more complex shape
the RHK faces the bar and barely skims the 14 stock nicely, however when the external threading tool is selected, the tool goes to the material face origin, and then just plunges in the -ve:X (thats correct – X, not Z), direction, up until it hits the limit switch/or i press emergency stop.
short VIDEO from after the ATC changes to tool #3
>>>>>>>>> https://dl.dropbox.com/u/77961576/denford/DSCF6064.AVI
>>>>>>>>>During the simulation in VRMilling it simulates fine:
https://dl.dropbox.com/u/77961576/denford/1.JPG
>>>>> i cannot attache a .LCM file but if youd like it please let me know and ill email it.
*******
below is a summary of what i do.
I’m using Quickturn2D, and VRturning (current versions)
1) creating the profile in QT2d
threading tool is in position 3
https://dl.dropbox.com/u/77961576/denford/9.jpg
https://dl.dropbox.com/u/77961576/denford/10.jpg
2) load the .fnl file to VRturning
3) set the stock offset by moving tool #1 to the z face of the bar stock – leave as is and clicked ok.
https://dl.dropbox.com/u/77961576/denford/2.JPG
program sets to 0.005
https://dl.dropbox.com/u/77961576/denford/3.JPG
4) then the stock X offset by setting diameter to 14mm and then OK.. – “programme - X’ sets to 14.000 on DRO
https://dl.dropbox.com/u/77961576/denford/4.JPG
5) tool 1 X offset - -tool set to touch ourside of stock, and dia value set to 14 (distance to origin not touched)
https://dl.dropbox.com/u/77961576/denford/5.JPG
6) tool 1 y offset – tool set to touch z face of bar and ok’d
https://dl.dropbox.com/u/77961576/denford/6.JPG
7) then tool 3 – the external threading called up on the ATC and jogged to following position:
https://dl.dropbox.com/u/77961576/denford/DSCF6061.JPG
Tool#3 ‘z’ offset - nothing changed and OK’d
https://dl.dropbox.com/u/77961576/denford/7.JPG
tool # 3 ‘x’ offset diameter set to 14mm
https://dl.dropbox.com/u/77961576/denford/8.JPG
thanks
Keith
I’m pretty new to CNC turning and the Denford software.
I’ve pretty much got to grips with setting up material offset, and using a RHK to turn basic items.
I’m now looking at threading but i seem to be having a major problem.
I don’t know whether it is something I’m doing wrong so ill run through what I’m doing step by step, and maybe you can see where I’m going wrong.
Essentially I’m testing turning a piece of parallel 14mmOD bar to M14x1mm before adding it to a more complex shape
the RHK faces the bar and barely skims the 14 stock nicely, however when the external threading tool is selected, the tool goes to the material face origin, and then just plunges in the -ve:X (thats correct – X, not Z), direction, up until it hits the limit switch/or i press emergency stop.
short VIDEO from after the ATC changes to tool #3
>>>>>>>>> https://dl.dropbox.com/u/77961576/denford/DSCF6064.AVI
>>>>>>>>>During the simulation in VRMilling it simulates fine:
https://dl.dropbox.com/u/77961576/denford/1.JPG
>>>>> i cannot attache a .LCM file but if youd like it please let me know and ill email it.
*******
below is a summary of what i do.
I’m using Quickturn2D, and VRturning (current versions)
1) creating the profile in QT2d
threading tool is in position 3
https://dl.dropbox.com/u/77961576/denford/9.jpg
https://dl.dropbox.com/u/77961576/denford/10.jpg
2) load the .fnl file to VRturning
3) set the stock offset by moving tool #1 to the z face of the bar stock – leave as is and clicked ok.
https://dl.dropbox.com/u/77961576/denford/2.JPG
program sets to 0.005
https://dl.dropbox.com/u/77961576/denford/3.JPG
4) then the stock X offset by setting diameter to 14mm and then OK.. – “programme - X’ sets to 14.000 on DRO
https://dl.dropbox.com/u/77961576/denford/4.JPG
5) tool 1 X offset - -tool set to touch ourside of stock, and dia value set to 14 (distance to origin not touched)
https://dl.dropbox.com/u/77961576/denford/5.JPG
6) tool 1 y offset – tool set to touch z face of bar and ok’d
https://dl.dropbox.com/u/77961576/denford/6.JPG
7) then tool 3 – the external threading called up on the ATC and jogged to following position:
https://dl.dropbox.com/u/77961576/denford/DSCF6061.JPG
Tool#3 ‘z’ offset - nothing changed and OK’d
https://dl.dropbox.com/u/77961576/denford/7.JPG
tool # 3 ‘x’ offset diameter set to 14mm
https://dl.dropbox.com/u/77961576/denford/8.JPG
thanks
Keith