Slotted Headstock Jig

[Bob Connor]

Pictures worth a thousand

IMG_1028.JPG (84.15 KiB) Viewed 6227 times

[Kim]

Kim:- reckon the production cost would be sweet Fanny Adams

Obviously the price of Ms Adams' fanny has gone up somewhat with the value of the AUD

This is exactly what I thought was going on when I tried explaining yesterday, no thread, no ball, just a spring and I am sure the jig works just fine like this. So, seeing as its all so easy to make ...Well in all fairness, Tracey does a terrific job and his build quality is first class. The fact is you pretty much get what you pay for with this, a good idea made available to those with the folding in a fist class bit of kit.

Cheers

Kim

[Bob Connor]

This isn't Tracey's stuff Kim.

Different company, similar name.

[kiwigeo]

Kim, it's Chris's stuff.

Of course Tracey might have changed his name. The first time I emailed Tracey I assumed he was a she and embarassed myself big time.

[Nick]

Oh so the rod ends are flat! relying solely on the tight fitting spring to keep things aligned Would have thought some cup & socket would have been a better system for retaining accuracy, if it ever gets 'dropped' there's a chance the spring could deform. Still a extremely well made & thought out bit of Kit.

[Kim]

I don't care who he thinks he is, this new Tracey bloke/sheila makes a pretty good jig for a hermaphrodite with so many names.

This blowup of the first images tells much about the non-existence of a ball joint coupling.

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To me this makes no difference as the jig would still 'self align' even without the spring as it was being clamped in place to the side of the headstock and each side 'fence' of the jig became flush with the flared edge on it's side of the headstock. In order for the jig to 'crab', I would imagine that either one side fence or possibly 'both' would need to be sitting askew so that one end or the other would not be clamped securely against the wood of the headstock. In reality I still think the spring and rods configuration do little more than make the jig easier to handle during initial set up.

EDIT: I should add before people miss understand that the term "Self Align" in the above paragraph is used loosely. You would still need to check your placement with a rule but I hope you get my drift, the jig should clamp up without running askew as long as both sides sit flush against the edge of the headstock.

Cheers

Kim

[liam_fnq]

I don't care who he thinks he is, this new Tracey bloke/sheila makes a pretty good jig for a hermaphrodite with so many names.

[Nick]

Kim, If those pins weren't there & with both ends of the two clamping screws going through those rotatable brass inserts it is still possible for the two side rails to be misaligned across the centreline (crabbing even on a flaired headstock) forming a parallelogram. It wouldn't be much I know but it would be possible I imagine to have both side rails sitting tightly against the headstock yet be up to half a tuner hole out of alignment across the headstock. But you are right, I would imagine with the flat ends on the pins & relying solely on the spring to align it, they wouldn't function as a precise alignment aid but near enough due to the wire diameter of the spring.