BrilliantSteve Ganz wrote: ↑Mon Apr 16, 2018 8:09 pmThis worked for me.
Step 1. Make the solera.
Step 2 Get a 3" x 9" (play with the dimensions) block of wood
Step 3 Cover Solera with a piece of coarse sandpaper, and sand the block until it mates with the solera
Step 4 Attach medium sandpaper to the convex surface created in step 3
Result: There: a surface against which you can rub the bridge bottom for a final fit of the bridge to the top of the guitar that was formed in the solera.
That surface, combined with scraping the bottom of the bridge, will make a perfect fit of the bridge to the domed top.
that is a good point. I have a hard time sanding and applying even pressure and taking too much from the ends.Stephen Faulk wrote: ↑Tue Apr 17, 2018 2:13 amI have made the arched sanding board too. I seldom use it. One problem with teaching it is that unless it's carefully used it creates a rounded surface under the bridge that has to be doctored up with a scraper. Almost all back and forth sanding operation rock the work. For example if you fit bass or cello bridges there's a jig to hold them vertical while you grind the feet over sandpaper to get a rough fit, but after that you have to go back an do careful fitting by knife work. For me anything sanded needs to be checked with a straight edge and probably fit with a few passes of scraper. Theoretically I think it's good thing to teach.
Not all tops come off the solera and stay and perfect fit to the solera either, they move a tiny bit. I like the arched sanding block to get the basic shape of the top, but move on to fine tune the fit with a scraper, or at least check the underside of the bridge with a straight edge to make sure it its not even slightly convex. I use hide glue on bridges and it's important to to have a smooth gluing surface.
In one of his videos? I'm having trouble visualizing how that would work.
I think he was referring to this videoSteve Ganz wrote: ↑Tue Apr 17, 2018 9:14 pmIn one of his videos? I'm having trouble visualizing how that would work.
He says at the end of this video that he scrapes the bottom.
In one of his videos? I'm having trouble visualizing how that would work.Jasonm wrote: ↑Tue Apr 17, 2018 10:30 pm[quote="Steve Ganz" post_id=<a href="tel:1272943">1272943</a> time=<a href="tel:1523999673">1523999673</a> user_id=13734]
[quote="Jon Gillard" post_id=<a href="tel:1272877">1272877</a> time=<a href="tel:1523986337">1523986337</a> user_id=87484]
If you have a drum sander, you can mount your bridge blank to a piece of plywood domed to match your solera, then pass through sander and a matching curve will be sanded into the base of your bridge. Tip courtesy of Robbie O'Brien.