Elevate Your CNC Game: Climb vs. Conventional Explained

[@jamesyon5818]

You by are by far one of the best I have seen when it comes to explaining the CNC and carveco. Thank you for that.

[@Timberfalls]

Thank you for the kind feedback. I am glad this has helped. Let me know if there is something you would like me to cover more.

[@BreakRebuildRepeat]

Thank you, as someone new to CNC I wasnt sure why Carveco defaulted for climb cutting as ive spent all of my woodworking life doing the opposite. This explained it perfectly and quickly!

[@Timberfalls]

I appreciate the feedback and am glad that helped. Let me know if there is something you would like to see covered more. I enjoy making these.

[@tusharjamwal]

Backlash in machines deserves a mention here.

[@Timberfalls]

Yes I use the words forces and pressures rather than saying backlash to explain that and I probably should have said it is the same thing. I appreciate the feedback on these.

[@jimpalmer1944]

I have been a subscriber for a while, never got notices about new videos. Failed to hit the notification bell. Corrected that, now I will get all your videos.

[@Timberfalls]

I should have another new one coming out soon. Thank you for your support I hope these hep.

[@gglovato]

what about for single-pass full-depth high speed cutting of covered MDF?, climb would fill up the bit voids with swarf before the edges get to the cut surface

[@Timberfalls]

That is really more dependent on chip load. The climb and conventional settings are more about the direction of the backpressure coming off the bit and the direction the chips are being compressed. Chip load determines how loaded the bit gets and could be an indicator that your rpms are not high enough or if that is maxed out your feed rate is too fast.

[@gglovato]

@@Timberfalls But i don't mean the chipload, assume same feedrate and only change climb/conventional for the parameters i've said in the first message, the climb cut will fill/start filling with chips before reaching the side to be cut

[@Timberfalls]

@gglovato if you change from climb to conventional, it changes the chip load and has to be adjusted for. Check out this video kzbin.info/www/bejne/g5nag2mgqpZ7o7Msi=ehjAaqDFke27gmiC

[@gglovato]

@@Timberfalls i did some tests and climb leaves a far worse cut edge(rough with chipped parts) on the melamine for our parameters, with same feedrates at least (i'm still checking your other video)

[@Timberfalls]

@@gglovato So if it got worse then your original direction of using climb and downcut endmill will be the best option for that material. As I said in the other comments it is more likely a chip load issue. Perhaps reduce stepover percentages at your current rates to see if that improves.

[@ondrejroberto2896]

bits rotate in one direction only, check the picture of your video, it looks very confusing

[@Timberfalls]

Yes but the toolpath can go either direction and is why you would pick climb vs conventional. This is confusing because the bit turns the same direction on the inside of a vector as the outside but because it is a different side of the bit cutting it requires different directions depending on what side of the line you are cutting. So you would need to pick the correct direction to get a climb or conventional cut to have the chips cut evacuate in the right direction. Hope this helps

[@SchemingGoldberg]

Bits rotate in only one direction, but the spindle travels in different directions (+X or -X). That's the difference between climb and conventional.

[@duc_nguyen_96]

CLIMB BETTER

[@Timberfalls]

For most situation I would agree. There are a few situations where conventional will give a better finish. I go over that towards the end of that one. Thanks for watching and the responses.