Yes - that's the way to do it. The standard 2D trace works great if you have chamfers modeled: just select the bottom contour and voila! Same as a standard 2D contour chamfering operation. Unfortunately I sometimes need chamfers larger than my tool allows. I tried the scallop but that somehow gave me very weird dance like movements in the middle of the tool path. Changing the additional offset does the trick, giving a faster tool path with much better surface finish
Hey, Big thanks for this. I’m another that struggles with non planar chamfers, I also puzzle over the trace option,. If you could do a vid on the uses for trace I’d be grateful. And thanks again for your vids, I learn from every one of them. Alistair
I have a question. Whenever ever i have to put a nice chamfer along some 3d contours what i often do is to manually compensate a ball nose end mill (12mm ball nose for a 0.5mm chamfer) on every point basically via spherical coordinate s calculation given the chamfer angle and the cut path angle like literally R0=6 (tool radius) R1=45 (chmfr angle) R2=30 (path angle) G1 X=(R0*COS(R1)) Y=((R0*(COS(R1))*COS(R2))) Z=((R0*(COS(R1))*SIN(R2))) this is just the sphere comp. You need to ad the point location for every axis and ad or subtract the comp value based on what quadrant of the theorical circle you are then reduce R0 by 0.5 so the tool dive in to the part by 0.5 creating the chamfer. ALL THIS BY HAND on the machine. I have videos of it that i can upload for every one who disbelief. So my question is: is there a method in fusion for doing all this? Like a trace path but whit a ball nose one shot along 3d contours? Edit: The code i wrote is just an example I have some actual code that I can copy and paste here.
Thank you again :) For some reason Autodesk can't explain, a 2d chamfer toolpath got all wonky on a model which was a copy/paste of an existing component (done so I could manipulate it for placement on a fixture plate). Anyhoo the 2d chamfer went a little nuts, doing a retract every 50 thou or so. Crazy. But trace with left comp solved it!!
Do you still have the original bad toolpath? I have a hunch I know what the issue is but hard to explain. You can email it to me if you want so I can look at it. info@mechanicaladvantage.com
I know literally nothing about cnc but this is a tool path that in my mind seemed like it would give me problems because of the geometry, its interesting to know that this is a valid concern, at least my head is in the right direction
thanks for this video. After a long walk, I finally found the best explanation of all on this subject. it helped a lot. Grateful!
Yes - that's the way to do it. The standard 2D trace works great if you have chamfers modeled: just select the bottom contour and voila! Same as a standard 2D contour chamfering operation.
Unfortunately I sometimes need chamfers larger than my tool allows. I tried the scallop but that somehow gave me very weird dance like movements in the middle of the tool path. Changing the additional offset does the trick, giving a faster tool path with much better surface finish
Also, have a look at this video for some tips on how to improve that.
ua-cam.com/video/93oCFMCqQZg/v-deo.htmlsi=KG033TZU8iSvFTQ4
Outstanding video Kevin! Thanks for sharing, and thanks to Tim as well!
Hey Guy. Yeah, Tim really helped me out on this one. It was nice of him to take some time from his workday to do a title work with me.
more art than science sometimes. Thank you .
You’re welcome. Hopefully it will come in handy.
Hey,
Big thanks for this. I’m another that struggles with non planar chamfers, I also puzzle over the trace option,. If you could do a vid on the uses for trace I’d be grateful. And thanks again for your vids, I learn from every one of them.
Alistair
Glad it was helpful. I’ll see what I can do on your request.
Or if you have a 4/5 axis machine then you can rotate the tool/part to maintain the perpendicular angle required for a consistent chamfer
I have a question. Whenever ever i have to put a nice chamfer along some 3d contours what i often do is to manually compensate a ball nose end mill (12mm ball nose for a 0.5mm chamfer) on every point basically via spherical coordinate s calculation given the chamfer angle and the cut path angle like literally
R0=6 (tool radius)
R1=45 (chmfr angle)
R2=30 (path angle)
G1 X=(R0*COS(R1)) Y=((R0*(COS(R1))*COS(R2)))
Z=((R0*(COS(R1))*SIN(R2)))
this is just the sphere comp. You need to ad the point location for every axis and ad or subtract the comp value based on what quadrant of the theorical circle you are then reduce R0 by 0.5 so the tool dive in to the part by 0.5 creating the chamfer. ALL THIS BY HAND on the machine. I have videos of it that i can upload for every one who disbelief. So my question is: is there a method in fusion for doing all this? Like a trace path but whit a ball nose one shot along 3d contours?
Edit:
The code i wrote is just an example I have some actual code that I can copy and paste here.
Deburr in the MFG extension.
Thank you again :) For some reason Autodesk can't explain, a 2d chamfer toolpath got all wonky on a model which was a copy/paste of an existing component (done so I could manipulate it for placement on a fixture plate). Anyhoo the 2d chamfer went a little nuts, doing a retract every 50 thou or so. Crazy. But trace with left comp solved it!!
Do you still have the original bad toolpath? I have a hunch I know what the issue is but hard to explain. You can email it to me if you want so I can look at it. info@mechanicaladvantage.com
Great video Kevin.
Question
Is there a way to use 3d toolpath and use the chamfer tool so you only need one pass.
I don't think so. Might be interesting to try though.
I know literally nothing about cnc but this is a tool path that in my mind seemed like it would give me problems because of the geometry, its interesting to know that this is a valid concern, at least my head is in the right direction
How to given slot radius with the help of ballnose cutter?
thank you , very informative
Awesome!
Thanks for the information!!!
oooo very very thank you :)
Danke.
Well done 👍
Thanks Sam
why the -tolerance bit?
👊🏻🇺🇸
Just think. We could have done this to your widget file that you made in class 😜
@@MechanicalAdvantage ya, woulda came in handy. :)