Lathe - cutting on other side of part

[dan.w]

Hi,  

 

Sorry if this has been addressed before but I didn't happen to come across an answer.

 

I'm trying to bore on the X-minus side of a bore.

 

When I first start with the roughing cycle the stock recognition is working, but when I process the path it says tool collision every time it interacts with the stock.

After hitting ignore a dozen times - the path is correct and the code is accurate - all of my X's are negative.

 

When I go back and look at the parameters the stock recognition is greyed out and every time i reprocess this op I get the same collision message.  

 

Thanks for any help,

 

Dan

 

 

 

 

 

[YaddyB72]

Hi,  

 

Sorry if this has been addressed before but I didn't happen to come across an answer.

 

I'm trying to bore on the X-minus side of a bore.

 

When I first start with the roughing cycle the stock recognition is working, but when I process the path it says tool collision every time it interacts with the stock.

After hitting ignore a dozen times - the path is correct and the code is accurate - all of my X's are negative.

 

When I go back and look at the parameters the stock recognition is greyed out and every time i reprocess this op I get the same collision message.  

 

Thanks for any help,

 

Hi,  

 

Sorry if this has been addressed before but I didn't happen to come across an answer.

 

I'm trying to bore on the X-minus side of a bore.

 

When I first start with the roughing cycle the stock recognition is working, but when I process the path it says tool collision every time it interacts with the stock.

After hitting ignore a dozen times - the path is correct and the code is accurate - all of my X's are negative.

 

When I go back and look at the parameters the stock recognition is greyed out and every time i reprocess this op I get the same collision message.  

 

Thanks for any help,

 

Dan

 

 

I to have had this, rough out on x+ then finised on x-, and had problems with stock. I came to the conclusion that because my stock was defined on x+, it could not see it on x-.  I defined stock on x-, (mirrored stock geometry to x-) rough out ok on x+ (but did not show in backplot but did in verify) ,  then set fin on x- as od turn. Also seem to work ok if i did set any stock at all.

 

[Dan@home]

Or save time and money and don't use stock. If you know everything is good don't worry about verify. Every Co I have worked for period, doesn't use stock, because of simallar problems.

[DODGERFAN]

Hi guys.   Are you guys editing your tools properly?  I don't have issue with this at all.   

check these things out.

1) Edit the rotation to "CW" 

2) Check the reverse tool box.

 

You should be good to go.    Hope this helps.

[BBprecise]

I posted this last week over on the other forum. Only option (according to CNC) is to create another tool with same tool number, reverse spindle direction and put the tool on the bottom turret.

 

Dodger, when I tried that MC wants to change the tool for all operations which results in that same error when cutting on X+ unless I'm missing something.

[DODGERFAN]

I posted this last week over on the other forum. Only option (according to CNC) is to create another tool with same tool number, reverse spindle direction and put the tool on the bottom turret.

 

Dodger, when I tried that MC wants to change the tool for all operations which results in that same error when cutting on X+ unless I'm missing something.

Wouldn't you be using a different tool anyway?  If you are cutting on the minus side of X zero your tool would need to be rotated 180°,  like in a conventional lathe with the insert face up.  On the positive side of X zero your insert face would be facing down into the chip pan.  Maybe I am missing something here but you cant have a tool run on both sides of X.    

[BBprecise]

Dodger, to get it to work correctly yes you have to have a separate tool. The cutting edge orientation has to be the same the only difference is spindle direction and put it on lower turret. MC needs tool to be on lower turret to cut on X- side of center. I've never had to prg. a tool to cut X- so I figured MC would know enough to reverse spindle because it was X- side and it knows original spindle direction.

 

Orientation is the same because when on X+ side my tool is set up to bore dia's, and when on X- side the tool is going to cut the OD of a boss.

[3rdstring]

Dodger, to get it to work correctly yes you have to have a separate tool. The cutting edge orientation has to be the same the only difference is spindle direction and put it on lower turret. MC needs tool to be on lower turret to cut on X- side of center. I've never had to prg. a tool to cut X- so I figured MC would know enough to reverse spindle because it was X- side and it knows original spindle direction.

 

Orientation is the same because when on X+ side my tool is set up to bore dia's, and when on X- side the tool is going to cut the OD of a boss.

 

 

I would try creating a new tool with the same t# & a different offset #.

[CJep]

I would try creating a new tool with the same t# & a different offset #.

 

I did something similar to this for a VTL and this is what I did, also I changed the axis combination in the lower left of the tpath.