One of the most difficult steps when renovating guitars is to glue the neck. It must be true in both height and sideways and small defects in the attachment can be catastrophic at the stable. There is nothing less productive than gluing a neck wrong, the only thing you can do then is to loosen the neck end (which sits with fine and fresh skin glue - HARD) and start again. Never want to end up in that seat again!

Checked a little on the net and I did my own variation on a jig to test string up before the neck is glued and then be able to glue in exactly that position when everything is right. Everything is based on a long glue jaw that presses down the neck foot. So have I done before, but then the compulsion has been loose and difficult to handle. There is also a risk of scratching the lid / bottom or neck foot with a loose forcing. Since the room is small I made it collapsible!

The whole jig is made of timber and the suspension of a folding wall-hung Norbo IKEA table in solid birch that I bought on a flea

The jig can be adjusted for different body lengths with bolts through holes in different places. Two loose blocks clamp against the neck foot, the first fits against the forceps and the second against the neck foot. Takes about 20 minutes to make a new block for a neck foot that you do not already have a suitable block for. The contact surface against the neck foot is covered with rubber. Forcing rests against the table and is guided by a few blocks.

Made sure to make a guide higher up the neck to possibly be able to adjust sideways if needed when gluing.

So to the coolest, everything can be folded into an oblong moi that can be hung on the wall!