| Official Luthiers Forum! http://www.luthiersforum.com/forum/ |
|
| how much meat to leave in the bottom of a saddle slot? http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=42006 |
Page 1 of 1 |
| Author: | JasonM [ Thu Nov 21, 2013 10:19 pm ] |
| Post subject: | how much meat to leave in the bottom of a saddle slot? |
Putting in an undersaddle pickup, and I use a wide saddle 7/32". I routed a 1/8 slot inside the wide slot to take the transducer, however I only left about. 025 of wood under the slot, and am concerned it may crack and sink into the spruce top under string tension. Then I talk myself out of it, thinking the cross grain spruce wont compress that much. Any of the repair guys see a saddle slot blow out the bottom before? Easy enough to whip up a new bridge, but dont want to fix a problem that doesnt exist... |
|
| Author: | bftobin [ Thu Nov 21, 2013 11:20 pm ] |
| Post subject: | Re: how much meat to leave in the bottom of a saddle slot? |
Shouldn't be a problem. There have been a number of good guitars over the years built with 'saddle thru bridge' design. The amount you left should workfine Brent |
|
| Author: | JasonM [ Thu Nov 21, 2013 11:50 pm ] |
| Post subject: | Re: how much meat to leave in the bottom of a saddle slot? |
Really? saddle right on the spruce? i suppose it would stabilize after some initial compression. tough to get a flat slot with a domed top though |
|
| Author: | Joe Beaver [ Fri Nov 22, 2013 3:10 am ] |
| Post subject: | Re: how much meat to leave in the bottom of a saddle slot? |
Sounds like you have no problem! That is new info to me also. I usually end up with 1/8" under the saddle but it sounds optional. |
|
| Author: | Tom West [ Fri Nov 22, 2013 5:36 am ] |
| Post subject: | Re: how much meat to leave in the bottom of a saddle slot? |
Assuming your top is domed have you shaped the bottom of bridge to fit the the top .............? Tom |
|
| Author: | JasonM [ Fri Nov 22, 2013 9:22 am ] |
| Post subject: | Re: how much meat to leave in the bottom of a saddle slot? |
I do shape the bottom of the bridge to match the top dome, I still have my bit of wood left after that, but was thinking it might disappear while I was grinding the bottom... when I drilled the little hole for the UST wire, I was able to see how much I had left... Todd - many thanks for the math on that - answers my question precisely! My UST footprint is only .095" x 2.5", so looks like I'm at about 564 PSI, but the Sitka can probably handle that. 
|
|
| Author: | Tom West [ Fri Nov 22, 2013 9:33 am ] |
| Post subject: | Re: how much meat to leave in the bottom of a saddle slot? |
Jason: If you only have .025 now, you will have nothing after you radius the bridge. Again the assumption of normal radius of 25-30 ft. Tom |
|
| Author: | JasonM [ Fri Nov 22, 2013 9:35 am ] |
| Post subject: | Re: how much meat to leave in the bottom of a saddle slot? |
Tom West wrote: Jason: If you only have .025 now, you will have nothing after you radius the bridge. it's already radiused... so got off lucky, yes you are right, it would be sawdust if I hadn't done it yet |
|
| Author: | Tom West [ Fri Nov 22, 2013 10:02 am ] |
| Post subject: | Re: how much meat to leave in the bottom of a saddle slot? |
Jason: OK, guess I misunderstood.................man I do that a lot. Old age and brain fog. Press on and good luck. Tom |
|
| Page 1 of 1 | All times are UTC - 5 hours |
| Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |
|