Hey all. I have been quite busy with some other custom builds but I thought that I should get back to you with some progress shots of the process I use to set a neck. I have done several trial runs with my process and have proven to myself that this technique works. I have searched and searched for info on set necks and there does not seem to be much out there. There was one post on TB that was supposed to be great but the pictures were gone. Being a visual type of guy I was frustrated.
Most set necks I have encountered were of the Gibson tenon variety but I use a Thompson style approach. I just make the heel extra thick and glue the bastard in. Ok, there is more to it than that but not much.
First I check and re-check the fit and that the neck is at the right angle for the bridge. I had to remove some material from the bottom of my neck heel as the bridge was a little lower than I planned. One tip I may pass on is that it is best to have the bridge intended to be used, be present during the layout phase so you will not have to do this. I did not and have had to make adjustments accordingly. Also you have to check and make sure that the heel and bottom of the pocket are smooth and very flat so that they bond well together.
Did I mention fit? A tight fit is essential. A typical mass produced bolt on neck/pocket would not work too well. I like to have the pocket so that I can press the neck into place and lift the body with just friction. The neck should go in smoothly as you do have to have some space for glue. If you have to stand on it to get it into the pocket it is too tight.
When I finished my neck with some oil (as it was Wenge) I masked off the area that will receive glue. I used plain masking tape covered by packing tape so that the oil or naphtha, that I use to clean the wood, will not soak through and contaminate the wood. I also drilled some holes to soak up any excess glue and help give the joint a mechanical bond. You will see why in a bit. You are not drilling to China with the holes so an eighth of an inch will do. Don't want to mess your truss up do ya?
I did the same drilled holes with the bottom of the pocket.
Now I apply some Titebond Type II (blue cap) wood glue as it holds strong but if I ever have to remove the neck, this glue melts with hot water/steam. Another tip...don't build anything that can't be repaired or revearsed if needed. Notice that I did not cover the last half inch from the edge of the pocket. This is to keep the squeeze out from working its way into the pores of my Wenge neck. The holes that were drilled into the neck heel and pocket also soak up the glue.
I apply a little glue to the heel of the neck as well. I use a artist type brush and dip it into water to help wick the glue deep into the wood. I covered the side of the pocket with glue and let the whole mess soak in a bit before putting the neck into the pocket. Please note that I did not apply glue to the sides and end of the neck heel or if you do, let it soak in and wipe of the excess or you will have glue out on the face of your bass.
This is the results I like to see. Wenge being as porous as it is looks really bad if you get wood glue into the pores. Been there and done that.
Into the clamps she goes over night.
Sorry, I have forgotten to show the completed inlay that Rosie did.
Finally she is in the the assembly stage. Next time I will have finished pics.
Thanks so much for the comments and the feedback that you have all sent. Until next time.