Here's another example of the troublespot; I refined one of the curves, and added lines that should make it clear what the solid shape should be. Still no luck getting a solid out of this though.

Some of your geometry wasn't great...I re-drew some of it as well as introducing some new splines. Try to avoid duplicate lines too?

This is hopefully one way of getting close to what you need...

Hope it helps;)

I too had a go trying to redraw this (after watching Steve), but unfortunately there were other more pressing things I had to deal with.

Duplicate lines? Yes I found a tonne of them! I was wondering Tim, if there is anyway of stopping this, so a new line for new geometry is only created if it is entirely necessary. For eg, if you create a polygon, then extrude it one way, then using the same entities to create the extrusion, just pick those same lines to add to further sketches, for a new feature. The software automatically adding additional lines where needed. This would save one heck of a lot of guess work! Even a 'lock the line' feature could be quite useful imo, disallowing one to pick the wrong entity?

BTW, I did start to model a lapsteel guitar in VC. I'll post it once it's finished.

Gotta say, i'd be totally lost without the help I received on the forums from Tim and Unique. I could not get past that neck to heel transition, and was clueless about how to do it. I worked on it for a couple hours, reading the manual, trying different commands, etc. In fact, that's how I found the forums, while doing some research on the net.

On the other hand, I started working on modeling a guitar within minutes of downloading the program; any reasonable person would have started off working with simple objects in 2d, then moving to 3d, etc. Had I done that, I likely would have learned about object integrity and the need to eliminate extra lines on my own.

I'm about to get back to work on another neck exercise, and sort out the back of the headstock; once that's done, I'll work on modeling parts to scale. By the way, I've also recommended VC to some of the folks on another forum, CNCZone, where Rhino and SW and VCarve are the programs of choice for luthiery. Their view is that a program must be able to model the carved top of a Les Paul to be of any use. Since I'm not going to be building any carved top guitars, it's the neck area that I'm most concerned with, and VC has that covered. Seems to me it could handle carved tops, as well, but I'll leave that to someone else...