Guitar Building with my JazzCNC machine

[JAZZCNC]

I noticed you have a lot of tooling marks left on the neck and further bits to sand, could I ask why that is?

I'm hoping that I can do necks with less work left after machining but I might be unrealistic about what I can achieve.

Issues for me would be that jazz guitars don't have have wings glued to the headstock and the heel is taller.

So without sounding like an arse, are the issues (you may not see it that way) you have purely down to lack of experience, or is it simply as you state, easier for you to do more post sanding. I'm hoping to do asa little sanding as possible as this adds in a margin of error and lack of repeatability.

First, let me say this post isn't intended to sway your buying decision because by now after speaking with you at length I'd like to think you realise I that's not my style or way.!

The surface finish you can achieve is all down to the size and step over amount, mostly this is a trade-off between time and effort in sanding. With a small stepover, you will get a finish that is perfectly smooth. However, the cycle time could quite easily quadruple or more. But it's certainly possible to get a perfectly smooth finish.

This trade-off between step-over and sanding is why in my post congratulating Ben I said "you seem to be getting to grips with it quick enough, those feeds n speeds look nicely dialed in with a good balance between speed and sanding regards the step over(scallop)" The time saved in machine time compared to the small amount of extra sanding required is in my opinion worth it provided it's used in the right areas.

This is the beauty of CNC and having your own in-house machine, you can decide where the accuracy warrants a smaller step-over and where you can tolerate a little more sanding to lower overall build time. Plus you can tweak fit etc.

Like most things in manufacturing, Quality is a trade-off between time and effort. CNC just allows you to choose how much of each you save.