JM-1 Help

[wokkaboy]

I agree with DB, looks like you have to file away some of the rear of the bridge cavity so the bridge can pivot while sitting on the V groove when they are screwed down flush with the body

[cslessar]

Yeah riiight...

That's what I thought. Not an issue, I'll get on it.

My only concern is that I have done a few measurements from the saddle to the 12th fret and from the 12th fret to the bridge hole and they aren't the same (the second measurement is about 2cm longer).

So I guess my last question (hopefully) is - how important is it that the distance from 12th to saddle is the same as the distance from 12th to bridge?

[wokkaboy]

I've not built a JM-1 so would be better if a forumite who has built one checked their measurements. Looking at the above photo the bridge pivot holes don't seem to line up with the cavity. Can you please post a photo of the bridge installed on the pivots from above ?
2cm difference seems too much 12th fret to saddle distance. The bridge should be perpendicular to the centreline of the neck and you move the bass string saddles more rearward than the treble strings.
I'll wait for a photo, maybe if you can please place the ruler on the neck so zero is on the 12th fret - cheers. Also if you can post the nut to 12th fret distance would be great.