Fusion 360 CAM - Understand Smarter Toolpaths - Adaptive & Favorite Settings -
ฝัง
- เผยแพร่เมื่อ 28 ก.ย. 2017
- Live Stream - Ready for some setup tips for Adaptive Clearing. This is Fusion 360 AND we will chat about your comments and questions.
Style: Casual
My email:
lars.christensen@autodesk.com
Al's great video on Adaptive:
• Adaptive Clearing at P...
John Saunders' GEAT Stop slotting the stupid way:
• Stop Slotting The Stup...
Want to learn more about Fusion 360? Check out this link:
autode.sk/2rXApL2
Free CNC Handbook:
bit.ly/2c2ivku
SUBSCRIBE!
/ subscribe_widg. .
LET'S CONNECT:
/ lars_cadcam
/ mrlarschrist. .
/ cadcamstuff
MY BLOG, cadcamstuff.com:
cadcamstuff.com/ - วิทยาศาสตร์และเทคโนโลยี
"we gonna spiral all the way to the bottom, theres nothing scary about that, thats fine"
Thanks, that cheered me up.
Hey Lars, great beginner video for adaptive milling.
I think for those who want to get the most from adaptive tool paths it's absolutely critical to understand how the chip load and tool wear are affected beyond the advantages of full depth of cut machining.
Google radial chip thinning and read all you can. There's an endmill manufacturer called Helical Solutions that has some great PDF's that you can print off as a resource.
Remember back in the early 2000's when feedmills came out? I was just getting started in machining and wasn't yet bound by dogma so I researched why they work.
Axial chip thinning. This translated into shallow depths of cut at high feed rates. Compared to a cutter with a 90 degree cutter angle producing a 90 degree engagement angle, feedmills usually have around a 10 degree effective engagement angle if you discount the fact they are almost all radiused. That ment that for the same forward feed rate the chip thickness is reduced due to the chip thinning effect. This is why you can utilize feed rates of .03 or more per tooth with feed mills. I struggle constantly to get folks to understand this.
With endmills employing a radial step over stratagy the effect is exactly the same. The less the step over the greater the chip thinning effect because of the radius of the endmill. This translates into higher feed rates for the same stress on the tool. It's counter intuitive but getting greedy on the step over actually starts to defeat the advantages.
The added bonus of lowering the step over and increasing the feed is the fact that each individual tooth is engaged in cutting fur a shorter duration of time per revolution for the same chip thickness. This means we can increase the SFPM because we know that heat generation is the primary cause of cutter wear.
In short. Lower your step over, increase your feed and rock up the SFPM. Researching these elements makes it abundantly clear why it works so well.
Hi Mike Lang Thank you for watching! ANd thank you for the great comment!
Fantastic...learning from you in this video just took a particular job from just makin a buck to a very very nice margin! Thank you Lars!
That is awesome to hear Greg Rodney .Thank you for watching the videos
Hi Lars, Its so wonderful & a learning experience watching your videos & explanation of why & how you do it.i love it
Was sad I missed this earlier today, but glad I watched this tonight. It's very helpful for someone new to CNC like me, because though I was using this adaptive tool path, I was also choosing 30% of tool diameter for both radial and axial. This is slower and does not extend too life, so I'm going to be a little bolder on my next project! Thanks again for these tutorials.
That is awesome to hear erikj7 .Thank you for watching the videos
Great video for us old dogs. I have been trying to figure this out and the way you have explained it makes a lot of sense to me. Great video. Thank you
That is awesome to hear Van .Thank you for watching the videos
This was exactly what I needed! Thank you for another great video!
That is awesome to hear Jussi Kakko .Thank you for watching the videos
You're awesome, Lars!
Quality content as always, never did understand the stay down function until now. Thanks.
Now I just need the time to watch your tutorials.
That is awesome to hear Manny Calavera .Thank you for watching the videos
I learned more watching this video than any other on Fusion. Good work.
That is awesome to hear philip rogers .Thank you for watching the videos
Thanks for the tutorial, great info as always!
Hi Michael Clark Thank you for watching!
Thanks Lars. You explained that very well.
Thank you Allen McFarlen
Exactly what I was looking for
Love it!!! Nice video I always learn a lot!!!
Thank you James Hopkins
Thanks lars been waiting for this one thank you
You are so very welcome :-) Thank you for watching!
Hi Lars. Many thanks for this great explain. Best Regards Remo
You are so very welcome :-) Thank you for watching!
Nice intro to adaptive. I started with adaptive, but switched to pocket milling because I didn't understand the constraints. It would have been nice if this video had come out after the "both ways adaptive" feature was added on the last CAM update. Slotting isn't too bad if you are cutting very soft materials (XPS, Soft plastics, etc.), but for dense woods and metals I can definitely see the benefit of always side milling with an even load on the cutter.
Hi Jack Bryan Thank you for watching!
Yes, I should have had this as a reference at the CAM what's New livestream.
Have an awesome day!
Best,
Lars
Hey Lars thanks for your video! I'm starting machining some wood and i want my 3D adaptive clearing to go straight instead of his elliptical way. Still i prefer adaptive clearing instead of pocket because i want "rough stepdown" and "fine stepdown" which pocket clearing does not allow me to do.
Shortly, i was wandering if there is any way to make Adaptive clearing generating toolpath as pocket clearing.
Thanks to anyone want to help!
I am looking for power transmission between two shaft with chain and sprocket assembly tq for replying
BIG Help!!
That is awesome to hear bruce peters .Thank you for watching the videos
Per the 35:47 toolpath with default stay-down, vs 36:18 with maximum staydown - notice that the number of cross-model moves is actually the same. The only difference is that your machine is no longer rapiding between those points, and is instead using the feedrate speed. This would actually be SLOWER toolpath on most machines than the default, there is a reason rapid is called rapid. I'd be careful thinking you are going to get a lot of time savings maximizing staydown on every model.
Great Video. I'm a little confused with Optimum Load and how it relates to Feed per Tooth. If I were to guess Feed per Tooth defines the forward distance traveled as each Flute comes around as it relate to Spindle speed and Optimum Load uses Feed per Tooth to create a toolpath which loads the cutter with a constant amount of side contact?? Sound Right?
Adaptive Clearing is now my goto toolpath. Thanks!
Hi Bill Vanca Thank you for watching!
I guess you could say the two crossover. But, generally, Feed per Tooth comes down to how much balls your machine has. Then there could also be an issue with clearances between the flutes of your cutter if you chip got really thick.
Now, you might not see a big difference on your load meter if you keep you Feed per Tooth and then change your optimal load from .1 to .2 But ofcourse if you changed your Optimal load to half the cutter size, then you might, but then you are not really side milling any more :-)
Such valuable info Lars! Just a little thought, why would someone use the "multiple Depth" option besides fearing such a deep depth from breaking end mills in the past?
When milling deeper than your flute length is one instance. Some long endmills and indexable cutters have short flute lengths so so have to use multiple depth passes.
When using a feedmill is another reason to use multiple depth passes. Using an adaptive style tool path controlling your tool load with a feedmill works great also, you’d take a wider pass (75% of the cutter width for example) than you would with an endmill. You’d use this on a 3D profile with long tool overhangs if the part/application calls for it.
Thank you for a great reply, Jim. Dj, I think Jim said it better than I could :-)
Have a great day guys.
Thanks you for all your videos Lars. I’ve learned quite a bit coming from Mastercam from you. Glad I could help.
Does Fusion calculate the feeds and speeds using calculations like in FS Wizard? Are they sensible and can we use them as they are?
The problem with feeds and speeds is that it really depends on what type of machine, tooling and work holding you are using. Fusion does not suggest feeds and speeds, like FS Wizards, because if you run with those numbers blindly, you could have a bad experience. Personally, I don't have a problem with software like, FS Wizard, but for myself, I have always made a point to have a close relationship with tool manufactures so I could pull on their knowledge.
BEst,
Lars
My toolpaths aren't spiralling down. also not starting from the centre of the pocket.
Tak skal du ha‘....
Anytime :-)
how to make the chain and sprocket with assembly
Hi Dvsa Gohel Thank you for watching!
What are you specificly looking to do?
Lars, why don't you change 'Live Stream" and call it 'LARSTREAM', just sayin' it sounds cooler!
Hi Michael Strong Thank you for watching!
Can I have that on a t-shirt? :-)
Have and awesome day!!
Lars do you do private tutoring via skype? Or can you point me to someone who does?
Hi nature is crazy Thank you for watching!
Personally I don't. I think John Saunders from NYC CNC might have some kind of way to pay for lessons online.
Lars Christensen thanks buddy I'll get in contact with him
Yellow movement is allways rapid movement isn't that right... only thing that tool stays down and rapid linking happens down mostly and don't come up on Z and then make movements...
Hi HybridiHippo Thank you for watching!
Yes, rapid is yellow. I did a lot of testing when I was at Rid-lom when it comes to rapids vs feed moves. I don't think there at a golden rule. Of course if you are doing a lot of production you need to get your cycle time as close as possible to minimum.
yeah and remember the richy rich friend who bragged because he had a hard drive with a whole gigabit of memory capacity? that jerk LOL i remember those days.