Visualmill simulation jagged holes

Pattnmaker · Mar 5, 2013

I am trying to teach myself how to use Visualmill by doing all their tutorials, I have a seat of it coming at the end of the week with my new machine. I have followed all the steps for hole pocketing but when I run the simulation I get a roundish hole but it is not round. I have a number of random flats on the sides of the holes. The 2 holes are not even the same and the holes shown in some cases are not even a shape you could machine with the loaded endmill.

I have spent several hours messing with it and still end up with a jagged hole. What am I missing? Could this be a graphics card issue? I am using my laptop with a NVIDEA NVS 2100S card.

bryan_machine · Mar 6, 2013

You mean, you made a part and got a not-very-round hole, or that the simulation of the code shows not-very-good holes and so you haven't tried to run the code?

Assuming the later -> it could be the video card, but first you should look at the various rendering settings. In solidworks (different app, I know) you can set how carefully it draws circles - fast-rough or slow-good. It may be that if you find and adjust such an option your holes will look better.

The other thing to do is look at the machine code (g-code) and see if it looks correct to make a hole.

[How well your machine(s) can interpolate holes is a different matter.]

RyanT · Mar 6, 2013

This is normal, running a perfectly accurate simulation is very slow. You can turn up the detail in simulation settings or switch to the polygonal simulator instead of the voxel one.

Pattnmaker · Mar 6, 2013

It is just the simulation right now. The machine is coming Friday or Monday. I am trying to learn the software so that I can get the machine up and running ASAP. I will take a closer look at the rendering settings and will try looking at the polygonal simulator.

I am using a sub to do my modeling for now but I am starting to see I am going to need a CAD program as well. Financially right now I want to get Rhino and I am more familiar with it, but I am thinking longer term I am better to go with solidworks. I am going this morning to meet with the SW dealer.

bryan_machine · Mar 6, 2013

Pattnmaker - everything you wrote makes sense.

I encourage you to look at the actual machine output (G-code) [which can be tedious to learn, but that's life] - because often what we see in a simulation and the code we get generated are different.

72bwhite · Mar 19, 2013

The edges tend to look rough in the simulations hole locations should be controlled by the cad model it takes a little while to figure out how to drive the cam how smooth they come out in reality is figuring out the right settings .

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