What did you cut on your Shapeoko/ Nomad today?

[LiamN (Liam Newcombe)]

@Griff

I really like the look too but in reality, the ones I did are just ok. If you look closely they are a bit “chattery” not shiny-shiny. A function I believe of workholding and tool plus speeds and feeds. We’ll get better with practice.

I’ve found a couple of things that improved my results chamfering Aluminium on my machine

• The effective feed rate as the chamfer toolpath runs round the edge of the hole can be way higher than the ‘feed rate’ shown in Fusion (I broke a few things that way…) I now slow down the feed rate to account for the effective speed

See the Haas video that Kevin linked to in this thread

I think this bit might be blunt

I guess this is what you get for trying to bore a 4.2mm hole with a 4mm cutter through 10mm of 6082T6 Aluminium, must remember to pre-drill next time [Screenshot 2020-10-12 at 23.22.17] I think the edge has gone a bit dull… [Screenshot 2020-10-12 at 23.21.44]

• When using a stepover to do multiple passes of the chamfer cut, each stepover increases the surface area of the cut thanks to the geometry, so a small final stepover leaves small enough chatter for the repeat finishing pass to clean up