Reducing a 29hour Machining Time?

I started on a quick project last night - a floor register.

I’m going to finish the bottom this evening, and you have inspired me to try a deep DOC(1/2"). I’ve got engagement set at 1/16 and speed set at 60IPM. I plan on bumping up the feed as it goes.


You’ll love it, especially being a production guy!

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Would you mind if I made an attempt at cutting this file? If not, any hints on scaling it down to XL size? I’ve not worked with STL files in Fusion yet.

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Got for it; I left a meshbody in there called “before reduction” thats the one you should scale before reducing facets and conversion to a body.


Also as a note I’ve started to play with a new STL File today that has more water erosion in it.


You can find that STL here:

All about what you want the surface to look like i guess


More detail…you’ll be back up to 29 hours in no time:sunglasses:

Nice piece. Very nice.

Just be aware that the high depth of cut should only be used with operations where the tool radial engagement is low. If you try this in an operation where the tool is buried (slotting, for example), the result will be unpleasant. The adaptive strategies are ideal. The tool may move further, but you can move so much faster that you save time.


chuckle, I just figured out how to use the RayShader package in R I’ll see you in 29 days…

I’d recommend you try PixelCNC. It’s meant for topographical maps and calculates toolpaths way, way faster than Fusion for these maps. You can use the demo version to try it out. Fusion struggles with adaptive toolpaths on topo maps since there is so much math involved. I’d use pocketing and parallel toolpaths to reduce computational time.


Read about PixelCNC in @ClayJar post. Definitely will give it a try.

For now:
Scaled @MarkDGaal F3D file to 40%. F3D 1st toolpath adaptive clear with 3/8” 3 flute endmill, 50 minutes. 2nd toolpath adaptive, rest with 1/8” tapered ball endmill, 1 hour 7 minutes (calculated).

Cutting mdf so not the best material. A learning experience.



I know now why so many folks cut these reliefs, it’s fascinating to watch an island emerge from a chunk of wood!


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