# Fret placement for 35" scale bass

Discussion in 'Luthier's Corner' started by rmichael, Sep 12, 2008.

1. ### rmichaelSupporting Member

Jan 6, 2006
Central Illinois
Can someone tell me if there is somewhere on the web or a book I can buy where I can get fret placement dimensions for a 35" scale bass?

Any info would be greatly appreciated.

2. ### tjclemSupporting MemberCommercial User

Jun 6, 2004
Central Florida
Owner and builder Clementbass
3. ### wilser

May 4, 2004
Northern Virginia

it generates a PDF that you can print and use it to graphically slot your boards. I used that for a couple of years before I went powerslotting on the tablesaw + jigs.

4. ### Arx

Jan 22, 2008
Gotta be careful though if you're printing templates. not all printers are perfectly 1:1 scale. I ran into this problem printing PCB masks on my old printer.

Just measure when you're done and make sure the real thing matches the numbers.

You can find formulas for it on the internet as well. Just don't use an iterative formula. every fret should be calculated from the nut, not the previous fret. I wrote a very short perl script to calculate it.

for (\$i=1;\$i<25;\$i++){
\$position=(\$ARGV[0]-(\$ARGV[0]/(2**(\$i/12)))+\$ARGV[1]);
print "Fret#\$i: \$position\n";
}%

Fret#1: 49.8957360259745
Fret#2: 96.9910395732384
Fret#3: 141.443086839448
Fret#4: 183.400232400135
Fret#5: 223.002504328315
Fret#6: 260.382071525159
Fret#7: 295.66368482142
Fret#8: 328.965093321729
Fret#9: 360.397437381291
Fret#10: 390.065619526484
Fret#11: 418.068654557293
Fret#12: 444.5
Fret#13: 469.447868012987
Fret#14: 492.995519786619
Fret#15: 515.221543419724
Fret#16: 536.200116200068
Fret#17: 556.001252164158
Fret#18: 574.69103576258
Fret#19: 592.33184241071
Fret#20: 608.982546660865
Fret#21: 624.698718690645
Fret#22: 639.532809763242
Fret#23: 653.534327278647
Fret#24: 666.75

Hey, who put that there? (it's in mm btw. 889mm == 35")

5. ### rmichaelSupporting Member

Jan 6, 2006
Central Illinois
Thanks for all the info! Just what I was looking for.

6. ### Jools4001Supporting Member

But I can't saw down to picometre tolerances Does this mean I'll be out of tune?