CamBam
News: *** FORUM BACK *** please see 'Latest News' for updates
 
*
Welcome, Guest. Please login or register.
Did you miss your activation email?
May 21, 2018, 23:47:07 pm


Login with username, password and session length


Pages: [1] 2
  Print  
Author Topic: Need Help with 3D Cam and CAD  (Read 657 times)
lernincnc
Droid
**
Offline Offline

Posts: 87


View Profile
« on: January 12, 2018, 02:26:08 am »

The more I use CamBam the more I like it.  I've been using it for about two years now and am light years ahead of where I was when I started.  So here I am needing to create a drawing so I can machine a tapered hole.  For info the attached files are for a test piece.  My goal is to get the tapered hole MOP fine tuned then move on to making a R8 tool rack.

Today was dedicated to reading and learning but sad to say I haven't made much progress.  I created several CAD drawings as best I could with the thought that Profile to Helix or Revolved Extrude were the appropriate tools.  Those files are attached.  Not sure if I going down the right path.  I got Profile to Helix to generate a tool path but it's inverted and not cutting deep enough.  I moved on to Revolved Extrude and generated that tool path.  Again, the path isn't following the desired taper.  I played with the settings but still can't get it to follow the taper. 

I'm looking to the resident forum experts to show me the way.  Thanks for the help.

Tom         

* 3D Trial 01.cb (25.55 KB - downloaded 15 times.)
* 3D Trial 02.cb (362.17 KB - downloaded 20 times.)
Logged
Bubba
CNC Jedi
*****
Offline Offline

Posts: 2408



View Profile
« Reply #1 on: January 12, 2018, 03:40:02 am »

Don't need solid for this. Use profile MOP with 'SLOPE' option..

* 3D Trial 01_SAMPLE.cb (8.64 KB - downloaded 14 times.)
Logged

My 2¢
dh42
Administrator
CNC Jedi
*****
Offline Offline

Posts: 4958



View Profile WWW
« Reply #2 on: January 12, 2018, 03:44:09 am »

Hello

If you want to use 3D machining, you need a 3D object that match the tapper you want to do, as on my file ; in you file it's only a flat surface (a disk)

circle2 is used to constraint the toolpath to stay in the circle (see boundary section of the 3Dsurface mop)

rough and finish are done with a 3D waterline method.

but as said by bubba, profile mop + side profile can do the same without 3D object.
http://www.cambam.info/doc/dw/0.9.8/cam/SideProfiles.htm

++
David

* 3D Trial 01_dh.cb (56.15 KB - downloaded 18 times.)
« Last Edit: January 12, 2018, 03:46:48 am by dh42 » Logged
Garyhlucas
CNC Jedi
*****
Offline Offline

Posts: 1112


View Profile
« Reply #3 on: January 12, 2018, 04:08:21 am »

My rack holds Cat 40 taper tools. Done with ProfileToHelix on a line sloped 7/24. I did 44 holes in 1-1/2” HDPE.
Logged

Gary H. Lucas

Have you read my blog?
 http://a-little-business.blogspot.com/
lernincnc
Droid
**
Offline Offline

Posts: 87


View Profile
« Reply #4 on: January 12, 2018, 05:13:03 am »

Don't need solid for this. Use profile MOP with 'SLOPE' option..

Thanks for pointing me in the right direction.  I created a MOP in a few minutes.  So easy.  I'll practice on scrap material tomorrow.
Logged
lernincnc
Droid
**
Offline Offline

Posts: 87


View Profile
« Reply #5 on: January 12, 2018, 05:15:44 am »

Hello

If you want to use 3D machining, you need a 3D object that match the tapper you want to do, as on my file ; in you file it's only a flat surface (a disk)

circle2 is used to constraint the toolpath to stay in the circle (see boundary section of the 3Dsurface mop)

rough and finish are done with a 3D waterline method.

but as said by bubba, profile mop + side profile can do the same without 3D object.
http://www.cambam.info/doc/dw/0.9.8/cam/SideProfiles.htm

++
David

Thanks David.  You've given me enough information for me to be dangerous.  I'll play with creating 3D objects.
Logged
lernincnc
Droid
**
Offline Offline

Posts: 87


View Profile
« Reply #6 on: January 12, 2018, 05:17:08 am »

My rack holds Cat 40 taper tools. Done with ProfileToHelix on a line sloped 7/24. I did 44 holes in 1-1/2” HDPE.


I did a sloped line as well but couldn't get it to work.  Care to share your cb file?
Logged
dh42
Administrator
CNC Jedi
*****
Offline Offline

Posts: 4958



View Profile WWW
« Reply #7 on: January 12, 2018, 06:25:54 am »

Quote
Thanks David.  You've given me enough information for me to be dangerous.  I'll play with creating 3D objects.

sorry Grin  Grin

++
David
Logged
EddyCurrent
CNC Jedi
*****
Offline Offline

Posts: 3430



View Profile
« Reply #8 on: January 12, 2018, 10:26:15 am »

It looks like the procedure on how to use Profile2Helix was not followed according to it's manual.



* p2h.jpg (133.76 KB, 1000x576 - viewed 30 times.)
* 3D Trial 02-B.cb (978.94 KB - downloaded 20 times.)
Logged
Bubba
CNC Jedi
*****
Offline Offline

Posts: 2408



View Profile
« Reply #9 on: January 12, 2018, 12:36:48 pm »

It seems like one shouldn't say there are to many options to do some tasks in CB.. Grin Grin (never too much)  Grin Grin.

But, how you guys remember all of them?
 Some plugins can be selected in plugin tree, some in diferent drop out menus?.. Huh 
Logged

My 2¢
EddyCurrent
CNC Jedi
*****
Offline Offline

Posts: 3430



View Profile
« Reply #10 on: January 12, 2018, 13:11:53 pm »

Some plugins can be selected in plugin tree, some in diferent drop out menus?.. Huh  

This is a real issue, it would be logical to keep plugins in the 'Plugins' menu but for those like V-engrave it makes sense to integrate them into the CamBam interface.
I've thought about putting my own plugins in a sub menu off 'Plugins' but there's no logic in that really.
Logged
lernincnc
Droid
**
Offline Offline

Posts: 87


View Profile
« Reply #11 on: January 12, 2018, 14:38:40 pm »

It looks like the procedure on how to use Profile2Helix was not followed according to it's manual.



No doubt that I wasn't doing it correctly.  I appreciate the help on doing it the right way.
Logged
Garyhlucas
CNC Jedi
*****
Offline Offline

Posts: 1112


View Profile
« Reply #12 on: January 12, 2018, 22:23:35 pm »

Learn,
You need to draw the profile line for the diameter you want then offset it outwards by the radius of the ball mill you are using. Then use ProfiletoHelix on that line.  Then use an engrave on the resulting helix.
Logged

Gary H. Lucas

Have you read my blog?
 http://a-little-business.blogspot.com/
lernincnc
Droid
**
Offline Offline

Posts: 87


View Profile
« Reply #13 on: January 12, 2018, 23:41:36 pm »

Gary - thanks for Profile to Helix tip.  I'll give it a try. 

Here's two pictures of the test piece I did today using the Side Profile/Slope function.

 


* IMG_0156.JPG (669.43 KB, 2016x1512 - viewed 31 times.)

* IMG_0157.JPG (725.32 KB, 2016x1512 - viewed 29 times.)
Logged
Bubba
CNC Jedi
*****
Offline Offline

Posts: 2408



View Profile
« Reply #14 on: January 12, 2018, 23:56:55 pm »

Nice!
Logged

My 2¢
Pages: [1] 2
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines

Valid XHTML 1.0! Valid CSS! Dilber MC Theme by HarzeM
Page created in 0.247 seconds with 19 queries.

Copyright © 2018 HexRay Ltd. | Sitemap