# Strange milling behavior when milling out **URL:** \ **Category:** Showcase & Prints\ **Created:** [June 5, 2022, 1:54pm UTC](https://forum.snapmaker.com/t/strange-milling-behavior-when-milling-out/26185 "2022-06-05T13:54:13Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![Frittenfresser](https://avatars.discourse-cdn.com/v4/letter/f/b5ac83/32.png) [@Frittenfresser](https://forum.snapmaker.com/u/Frittenfresser)\ **Post date:** [June 5, 2022, 1:54pm UTC](https://forum.snapmaker.com/t/strange-milling-behavior-when-milling-out/26185/1 "2022-06-05T13:54:13Z")
Hello… can anyone tell me why the edges are milled out during CNC milling (a shape 7.5mm deep is to be milled only vertically) in such a time-consuming way as shown in the viedeo, instead of going around the contour once. This would save a lot of time. Since I can’t upload videos as a “new guy”, here’s the link to it: [https://magentacloud.de/s/2ZJdcecLAeErYQd](https://magentacloud.de/s/2ZJdcecLAeErYQd) I simply don’t understand the point of retracting the milling cutter vertically along the contour. Is it possible to change this? Regards Frank ---
**Author:** ![Skreelink](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/skreelink/32/16398_2.png) [@Skreelink](https://forum.snapmaker.com/u/Skreelink)\ **Post date:** [June 5, 2022, 4:52pm UTC](https://forum.snapmaker.com/t/strange-milling-behavior-when-milling-out/26185/2 "2022-06-05T16:52:27Z")
Without knowing what software or model/image you’re using it’s hard to say. What it looks like to me is whatever software you used to generate the gcode generated small taps/loops along the edge (slightly pixelated image?) instead of a smooth contour. There should be options to smooth edges to reduce things like that in the cam software. Edit: If you don’t mind uploading the model and gcode? ---
**Author:** ![Frittenfresser](https://avatars.discourse-cdn.com/v4/letter/f/b5ac83/32.png) [@Frittenfresser](https://forum.snapmaker.com/u/Frittenfresser)\ **Post date:** [June 5, 2022, 8:51pm UTC](https://forum.snapmaker.com/t/strange-milling-behavior-when-milling-out/26185/3 "2022-06-05T20:51:20Z")
Hi, thanks for the feedback. …sorry for that. Sure I can upload the “model”. It is basically just a vector curve that I want to mill 7mm into the wood with the option “fill” to put something in a board in this recess. It is a .SVG which I had generated in Corel Draw from an image (outline of an stl file). It’s not more than this: (The rest of the message is a complete image, because as a “newbie” I am not allowed to upload more than one embedded image. I hope you can see everything. ) ![grafik](https://us1.discourse-cdn.com/flex022/uploads/snapmaker/original/3X/1/9/197aa1b1140c480a0ee616f2a896d73611cfe7ad.jpeg) ---
**Author:** ![Skreelink](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/skreelink/32/16398_2.png) [@Skreelink](https://forum.snapmaker.com/u/Skreelink)\ **Post date:** [June 5, 2022, 9:16pm UTC](https://forum.snapmaker.com/t/strange-milling-behavior-when-milling-out/26185/4 "2022-06-05T21:16:38Z")
It’s apparently a bug in Luban… 😕 I just copied your settings for a simple oval (using Luban’s add shape tool) aaand… it does the same thing. It does this (I assume) to remove the cusps left over from sweeping left and right, this was on the latest 4.3.0. However, on Luban 3.15.2, it only sweeps back and forth, it does not go back to do the outline, but you don’t get a fine edge, unless you do a secondary path to follow the outine, which actually gives you the result of sweeping back and forth to clear, then running along the outside in a smooth contour. Your best option would be to use a different CAM software, a popular one is Fusion360, I have a two-pass guide here: > [@Fusion 360 Guide For Multi-Pass 3D Engrave](https://forum.snapmaker.com/t/fusion-360-guide-for-multi-pass-3d-engrave/23143): > > In a bit of a follow up to my [Laser Guide](https://forum.snapmaker.com/t/accurate-repeatable-laser-guide/22779) and [Rotary CNC Guide](https://forum.snapmaker.com/t/multi-pass-rotary-guide/22121), 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… While it’s specifically for multi pass 3d engraves, it does have a section good for setting up Fusion for the snapmaker. You would simply want to import the SVG, then use the 2d pocket operation to fill it instead of all the other nonsense. 🙂 Another option would be Kiri:moto, while I have not used this personally, I’ve read about others using it, and TeachingTech mentions using it in their review of the snapmaker. It’s free and browser based: > **[Browser-based 3D Slicer](https://grid.space/kiri/?ver:3.9.4)** > > Kiri:Moto is a unique 3D slicer that runs entirely in browser and creates output for your favorite maker tools: 3D Printers, CNC Mills and Laser Cutters. There’s other CAM software out there, but those are the ones I know of offhand. Sadly, it’s your best option, as Luban is just… sort of junk. You COULD install the older version, 3.15.2, do a fill operation, then add another for outline or on the path to do the edge and it would be a lot faster than the odd dance Luban 4.3.0 is giving you. ---
**Author:** ![sdj544](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/sdj544/32/11365_2.png) [@sdj544](https://forum.snapmaker.com/u/sdj544)\ **Post date:** [June 6, 2022, 1:40am UTC](https://forum.snapmaker.com/t/strange-milling-behavior-when-milling-out/26185/5 "2022-06-06T01:40:48Z")
Luban just isn’t very smart at it’s toolpaths. It’s not seeing it as continuous but as a bunch of small sections and it then tries doing a plunge on each. Fusion 360 has choices for toolpaths so that you can tell it how you want to approach a cut and create the path. -S ---
**Author:** ![Frittenfresser](https://avatars.discourse-cdn.com/v4/letter/f/b5ac83/32.png) [@Frittenfresser](https://forum.snapmaker.com/u/Frittenfresser)\ **Post date:** [June 6, 2022, 6:04am UTC](https://forum.snapmaker.com/t/strange-milling-behavior-when-milling-out/26185/6 "2022-06-06T06:04:04Z")
Thank you all for your responses. @ Skreelink: …and for your instructions. Is this doable with the free version of Fusion? I’ve been working with OnShape so far, but will now take a closer look at Fusion 360 and also take a look at Kiri:Moto. Now I have at least a direction in which I can go and know that Luban is rather suboptimal. ☹ Greetings Frittenfresser ---
**Author:** ![sdj544](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/sdj544/32/11365_2.png) [@sdj544](https://forum.snapmaker.com/u/sdj544)\ **Post date:** [June 6, 2022, 6:34am UTC](https://forum.snapmaker.com/t/strange-milling-behavior-when-milling-out/26185/7 "2022-06-06T06:34:34Z")
There are a few limitations with the free version of Fusion but nothing that there aren’t workarounds for (or don’t actually apply to SM) The main one is it doesn’t include rapid moves but you can edit the g-code manually and just do a find & replace to put them back in. The other one is that you can only have 10 editable projects going at one time, but you can easily toggle them between readable only and writeable. The biggest is that it no longer supports 4th axis, but if you don’t have the rotary module it doesn’t matter. -S ---
**Author:** ![Frittenfresser](https://avatars.discourse-cdn.com/v4/letter/f/b5ac83/32.png) [@Frittenfresser](https://forum.snapmaker.com/u/Frittenfresser)\ **Post date:** [June 6, 2022, 8:20am UTC](https://forum.snapmaker.com/t/strange-milling-behavior-when-milling-out/26185/8 "2022-06-06T08:20:29Z")
Too bad, because I also have the Rotary module. But I will try to get something going with Fusion in the first place. Tnx ---
**Author:** ![brvdboss](https://avatars.discourse-cdn.com/v4/letter/b/9f8e36/32.png) [@brvdboss](https://forum.snapmaker.com/u/brvdboss)\ **Post date:** [June 7, 2022, 1:45am UTC](https://forum.snapmaker.com/t/strange-milling-behavior-when-milling-out/26185/9 "2022-06-07T01:45:11Z")
You can use (the free version) of Fusion360 with the rotary module and a little bit (ok a lot) of effort if you’re using it to do multi-side milling. It’s not using the full potential of the 4th axis, but it can be helpful depending on what you need: > [@Rotary Module with Fusion360: It works! (good enough)](https://forum.snapmaker.com/t/rotary-module-with-fusion360-it-works-good-enough/24367): > > Hello, I was hoping to show this little thing that had come to life on my rotary module. Especially with the engraving added to it: I didn’t try creating it in Luban as I had my doubts that the engravings would come out nicely, so I figured why not try and convince Fusion360 to work with the rotary module. As then I could project have a real engraving onto the curved surface. (which isn’t just a cylinder or something. Unfortunately, it ended like this ( I was so close…): … (the above is for cnc only) ---
**Author:** ![dreasi0n](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/dreasi0n/32/17921_2.png) [@dreasi0n](https://forum.snapmaker.com/u/dreasi0n)\ **Post date:** [June 10, 2022, 10:02am UTC](https://forum.snapmaker.com/t/strange-milling-behavior-when-milling-out/26185/10 "2022-06-10T10:02:11Z")
> [@sdj544](#): > > The main one is it doesn’t include rapid moves I’ve made a post-processor that allow us to specify our own speed for rapid moves… It’s on GitHub. And there is also a tool library and a machine library available. Check it out here: > **[GitHub - nunorvoliveira/snapmaker-2.0: Snapmaker 2.0 (A350, A250, A150) tool...](https://github.com/nunorvoliveira/snapmaker-2.0)** > > Snapmaker 2.0 (A350, A250, A150) tool libraries, machine profiles, post processor... - GitHub - nunorvoliveira/snapmaker-2.0: Snapmaker 2.0 (A350, A250, A150) tool libraries, machine profiles, post... ---
**Author:** ![John32](https://avatars.discourse-cdn.com/v4/letter/j/ee7513/32.png) [@John32](https://forum.snapmaker.com/u/John32)\ **Post date:** [June 27, 2022, 3:43pm UTC](https://forum.snapmaker.com/t/strange-milling-behavior-when-milling-out/26185/11 "2022-06-27T15:43:26Z")
Thank you a lot for this source!