Remachine

[Thad]

I ruff some pockets with a 2.0 cutter, then remachine the corners with a 1.0 cutter. Can someone look at this file and tell me what the hell is going on? It's called REMACHINE_THAD.MC9 and it's in the MC9 folder on cadcam's FTP. At the end of the remachine path, it does something real goofy that I can't explain. The part is symmetrical, so it should do it on both sides, but it doesn't. It also doesn't find stock in 4 corners that it should (.750 rads). If I play with the tolerance (set it to .002) in the Advanced button, I can get it to find material in those 4 corners, but it still doesn't eliminate the weird part at the end. If I increase the tolerance too high (.07), it then does the funny moves on the left side also and then mysteriously doesn't find stock in some of the other corners it should. BTW, the recommended tolerance value is 5%. Any suggestions?

 

Thad

 

P.S. I hate when this happens when you're training someone!!

[Rekd™]

Un-check Keep Tool Down in the Depth Cuts for the remachining operation

 

'Rekd teh Easy Money

[Thad]

Rekd,

 

I'll uncheck it if that's what it takes to get the job done, but..... I want to keep the tool down. Now what?

 

Thad

[Thad]

It still doesn't find stock in all the .75 rad corners.

 

Edited to say that it does if the tolerance is set to .002. I guess I'll have to live with it (but I still want to keep tool down ).

 

Thad

 

[ 05-14-2003, 08:51 PM: Message edited by: thad ]

[Rekd™]

Try doing it as a contour instead of pocket, and set your tolerance to something below what's needed to hit that line/arc at the slight angle.

 

'Rekd teh $2.00, please

[Rekd™]

I set the tolerance to 1%, .01, and contoured it, worked fine.. even with the tool down..

 

[ 05-14-2003, 08:55 PM: Message edited by: Rekd ]

[Thad]

Rekd,

 

Thanks buddy. I'll try that.

 

 

quote:

---

'Rekd teh $2.00, please

---

Hey CAMmando, another one for the "best of" list.

 

Thad

[Thad]

Rekd,

 

Even though I have keep tool down selected, it still didn't keep the tool down. Did yours? Not that big of a deal since the keep tool down bug has been logged by CNC Software.

 

This throws a wrench in my plans. Usually when I have to remachine, I just copy the ruffing op down and make it a remachine path, make some minor tweaks, and regen. I'll just have to keep an eye out.

 

Thanks for the help.

 

Thad teh here's a dollar fifty

[Tony]

In Almost all of my programs

I have one type of toolpath hog out something

and another toolpath clean it up

and maybe even another to size it

It work's....

[CAM-mando]

Dear Mr. Thad,

 

Regarding the $2.00 comment. It will certainly be considered for the next greatest hits compilation. Thank you for the suggestion.

 

Additionally, please remit $.50, the ballance of the $2.00 owed to Mr. 'rekd for services rendered.

 

In addition a $1 royalty for the use of the word "teh" which has recently been copyrighted by Mr 'rekd.

 

Thank You

CAMmando teh© 'rekd's agent.

[Thad]

quote:

---

Additionally, please remit $.50, the ballance of the $2.00 owed to Mr. 'rekd for services rendered.

---

{kicking and screaming} But he didn't keep tool down. HE DIDN'T KEEP TOOL DOWN!!

 

Thad

 

[ 05-15-2003, 12:48 AM: Message edited by: thad ]

[Marty A]

thad i made a pocket and used remachine and i couldn't get it to work either. so i reread the post and relized i have to make a new path and just coping it didn't work like in 8.1.1. is this correct? so after this it looked pretty good but i like to keep the tool up though.

 

 

marty

[Rekd™]

HAHAHAHAHA.... You guys are killin me h... THUD!

 

'Rekd teh helmet and a seat belt

[Zero]

Nice to see you finally smartened up and got yourself a helmet rekd

[P_Scott]

thad,

 

What are the parameters set to in the Remachine button? I usually have better luck by defining a previous tool dia. instead of calculating against a previous operation. I may have accidentally deleted the cookie I needed to access the FTP so I haven't been able to download the file. "D'Oh!!" Also starting a new pocket remachine operation does tend to work better as motty suggested. HTH

[Marty A]

for some reason i can't down load from the ftp site either.

[Dan Schnars]

Me neither... Can't download anything from FTP...

[jplecan]

About where that goofy part of the remachine toolpath comes from, while keeping tool down if you change the depth cut order from by pocket to by depth, you'll see where it comes from. It seems to calculate the toolpath by depth first and then breaks and sorts these toolpath segments and reorders them by pocket and where it decides to break the toolpath leads to the sometimes goofy results .

 

Jim

[cadcam]

if you guys Are trying to reach the FTP from links on your box

[cadcam]

I tried it at .0005 and it found all the corners and did the job.

But the tool down does not work right.

[Thad]

quote:

---

What are the parameters set to in the Remachine button? I usually have better luck by defining a previous tool dia. instead of calculating against a previous operation.

---

Peter,

 

I always use the previous tool diameter also.

 

Thad

 

[ 05-15-2003, 05:05 PM: Message edited by: thad ]

[Thad]

Thanks Jay, I'll try those settings.

 

Thad

[litnin]

Thad,

 

Set the tolerence to .01 in the advanced tab. This will pick up the missing corners.

Then machine the L/H side and the center seperately.

Now all you have to do is Transform (mirror) the toolpath from the L/H side to the R/H side. Not forgetting to reverse the toolpath of course.

This is why we machine the L/H and center pockets seperately.

 

If the Toolpath on the l/h side works then use it for the r/h side....makes sense to me anyway.

 

Hope this works for u.

 

Litnin.

 

[ 05-15-2003, 07:47 PM: Message edited by: litnin ]

[Thad]

Litnin,

 

Thanks for the reply, but that seems like a lot of extra work.

 

Thad

[litnin]

Thad,

 

its not realy a lot of work, about 5 minutes in fact, and you 'will' be able to keep the tool down.

A little extra time spent at the programming stage can lead to a lot of time, and money, saved at the machining stage....Thats my theory anyway.

Well the option is always there if you want it.

I've tried it and it works.

 

Good luck.

 

Litnin.