Brilliant Technique that All Machinists can use to Prevent Breaking End Mills

GENIUS CNC machining trick that all machinists can use to prevent breaking tools in dynamic milling toolpaths using Mastercam on the DN Solutions BVM 5700

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00:00 Intro
00:39 Why Dynamic Toolpaths Fail
01:41 Dynamic Tool Path Trick
02:01 TITANS of CNC Podcast
02:13 CNC Machining Applying a Secret Trick
03:25 Final Tool path CNC Machining

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#Machining #Machinist #Engineering

[Ravero]

Great tip for a lot of diffrent CAM software users! NX CAM has this feature built in, you can check the box to skip those "posts" and machine them with helical toolpath. Hopefully more CAM developers will add this option to dynamic milling

[markdavis]

Great, practical tip, Barry! I'm blown away by all the "simple things" I learn just by becoming aware of them!

[tjpprojects]

My biggest method to not breaking tips is by not having a CNC machine. :(

[ericsandberg]

Makes perfect sense once you see the for the helpful pointer.

[owievisie]

Love this quick tip. You could make an awesome 5 min quick tip series!

[tompass]

Personally prefer milling down to a 20mm diameter spigot and then taking it in 4-5 z passes, this is quicker more secure and dosent need slow af ramping that wears the end of your tool 👌

[Kermie_The_Frog]

Fusion's Cam software actually does support a toolpath that includes this quite well. You can turn a helix on in the middle, do a curtain area then come out and do another from the outside if you just copy past same one then change geometry

[tdg]

Now I see why they keep you around there! Nice tip Much love and gratitude

[peterpan]

I have created many programmes with PTC Creo, but I have never had the problem described. But I have also never machined large volumes with twice the diameter of the cutter as the infeed in depth. I would use a larger milling cutter for the part shown, or if I absolutely want to use a small milling cutter, I would machine the material to two infeeds. Or I could use a milling cutter for roughing. One that doesn't have smooth flutes, but instead has waves on the cutting edges.

[AlejandroPerez-puzc]

Well dang!1 We always cheat the software to do what we want. Never did my mind think to do this! Will be using this for multiple applications!

[adammiller]

Great idea, but just use a facemill or shell mill lol, increase feeds and speeds to make up MRR. Avoids this all together. Or have material cut to the correct length so you don’t have to mill all that extra material possibly adding unnecessary stress to the material.

[the_dengineer]

This is a really cool strategy. The principle of creating a structurally strong local area can also be applied to reducing the chances of chipping off brittle materials near edges like plastics. This needs to be integrated into CAM tool paths as an option for both outside to inside and vice versa strategies.

[ehamann]

I never heard of that! Great advice.

Greetings from Germany

[donniehinske]

Good advice Barry! Never thought to do that that way

[LostCloudx]

For such a huge top level professional team to take the time to make such videos which whilst i use a piss ass little 3018 it still transfers knowledge to us for potential future jobs. Thanks!

[kkaup]

Bobcad has a remove stock pillars feature in v36

[stevenking]

I started my career on a manual Bridgeport with play in the screws, talk about breaking tools, climb milling was a problem for sure. 3D additive machining seems so logical.

[Spikeydelic]

my mind is actually blown right now :P

[Sara-TOC]

Great video, Barry! I appreciate you taking the time to explain your process. 😊

[gavin]

I think it may be better to mill the center in that way but after you mill the outside, leaving enough that you know it'll be a ridge you can spiral down and mill the post out gradually. My thinking is that while you aren't dealing with as much catching on the endmill, there are still thin walls that could potentially catch, tear, and then chip the side of the endmill using the way shown. I could be totally wrong though