Guidance

[CSEBOLT]

I may be overthinking this so please bear with me..

I have a request to cut some shapes that need to be cut with a specific bevel (35* and 58*)
I can't think of a easy / timesaving way to do this on my 3 axis CNC since I don't seem to find any V bits with these angles.

Any thoughts?

Thanks.

[dealguy11]

Choices:
1. Have custom bits made with the required angles. Makes sense if you have to make a lot of them. The bits will cut very fast and leave the smoothest result. Downside is expense and time to have bits made.

2. Use a moulding toolpath. You can get the exact angles and it cuts very smoothly. You can generate the toolpaths tonight and cut them tomorrow rather than awaiting custom bits. There is no additional cost for custom bits assuming you have standard ball-nose bits. Downside is that it's not quick to cut, but you can have them finished in the time it takes to get the custom bits.

3. Use the chamfer toolpath. Pretty much the same pros and cons as the moulding path.

4. Create a model using a 2-rail sweep or extrusion. The results probably won't be as nice as either options 2 or 3 and it certainly won't take any less time.

[CSEBOLT]

Thank you, appreciate the suggestions. Where do you get custom bits made? Rough idea of the cost?

[dealguy11]

There are a lot of places that do this. I've had bits made by Magnate and by Ridge Carbide. For just one or two bits you'll probably pay between $200-$300 each. Could be less but that's what I've seen for custom cutters.

[Leo]

Do you have a table saw?

Is there any other possible way besides CNC?

Can you make a fixture to hold the piece on the angles you need?

[CSEBOLT]

Yup, table saw was the plan if the CNC isn't practical or timesaving.

[Leo]

The CNC machine is a very useful and versitle tool for sure. However, it is not always the best tool for the job.

[adze_cnc]

If all the edges that need beveling are straight then something like this technique can be set up in minutes and cut in minutes.