How to make different CNC passes (rough / fine)

[BenHint]

Hey Community,

Is there any detailed description or guide in the forum about how to properly use the 200W CNC module for different kind of passes (rough/fine) on the same model.

I am currently trying to figure out how to set up multiple passes for an imported STL file — for example, starting with a roughing pass (trimming most of the material, e.g. using a ball head bit) and then performing a finer finishing pass to get the details right (e.g., using a V-bit).

Could you provide me with an instructions or point me to a resource that explains how to achieve this workflow with STL files?

Many Thanks!

All the best
Ben

[xchrisd]

Here is a guide about using multi pass with Fusion 360:

Fusion 360 Guide For Multi-Pass 3D Engrave

In a bit of a follow up to my Laser Guide and Rotary CNC Guide, I’ve decided to do a quick 3d relief guide for the snapmaker using Fusion 360. This guide assumes you know some basics of running the CNC, such as being able to jog the machine with the control app, set work origin, and set origins for the axes independently. There will also be some optional G-code changes and sizing done in other programs to achieve a better result. Disclaimer: I am in no way responsible for any possible damage to…

There is a lot around in the forum.

[BenHint]

Thanks you xchrisd!
Will have a look

[Boxkite]

There was a similar question recently.

Follow the two YouTube videos about Fusion 360 mentioned in this topic:

CNC Carving of Topographical Mountain ranges

I downloaded a 4 tiled topographical mountain range map (STL File). The Snapmaker 2.0 CNC carving function with a very fine tip takes 4 days to carve out a L10 CM x W10 CM x H2 CM block of wood. Each tile is 10x10x2 CM and my intent it to carve the 4 tiles then line them up for a complete mountain range. This is a test for doing a much larger set of tiles. To shorten the total carving time, I would like to do a rough pass with a larger/faster bit, then a second finer / slower speed pass for t…

The only issue with multi passes is being able to set the same Z height after a tool change or using tools with a datum ring on the shank.

[BenHint]

Thank you Boxkite!"