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Multi-function Fingerboard Radius Jig by LedBelli Bass Guitars

Discussion in 'Luthier's Corner' started by LedBelli Bass, Jan 9, 2016.


  1. LedBelli Bass

    LedBelli Bass Fine, Handmade Custom Bass Guitars

    Dec 25, 2008
    Pasco, WA
    IMG_2106.JPG IMG_2107.JPG IMG_2108.JPG IMG_2109.JPG I have created a completely new design of my own that will provide maximum precision and versatility when radiusing fingerboards. This jig will allow me to radius fingerboards with the grain, across the grain, or both simultaneously.

    I will also be able to lock the bridge and carriage in place and use a sliding feed fixture to radius fingerboards up to any practical length a bass builder would ever want for fingerboards that run the entire length of the instrument.

    I will be adding a dust collection system for use with a shop-vac or commercial dust collector.

    Total time: 2 hours to design & draw; 4 1/2 hours to layout & construct

    I will be adding more pictures and details as I refine the fixture.

    NOTE: Since I am seldom ever on Talkbass.com the best way to follow me or contact me is at: Cleveland Johnson | Facebook
     
  2. LedBelli Bass

    LedBelli Bass Fine, Handmade Custom Bass Guitars

    Dec 25, 2008
    Pasco, WA
    . . .
     
  3. Means2nEnd

    Means2nEnd Supporting Member

    Are you selling them?
     
  4. LedBelli Bass

    LedBelli Bass Fine, Handmade Custom Bass Guitars

    Dec 25, 2008
    Pasco, WA
    No, it's here for the common good.
     
  5. Beej

    Beej

    Feb 10, 2007
    Victoria, BC
    Thanks for sharing this one Cleve - I take it, you'd make more than one bridge to accommodate different radii of the fingerboard?

    I'm still using a variation of your compound radius router jig. Do you find this one to be an improvement ( other than doing extended length boards)?
     
  6. PDX Rich

    PDX Rich

    Dec 19, 2014
    Portland, OR
    I really like this design. Very sleek and efficient, thanks for posting!

    Are you using double-stick tape at the heel end?
     
  7. Arie X

    Arie X

    Oct 19, 2015
    i like the refinements on the standard design. nice and clean work. thanks for sharing!
     
  8. LedBelli Bass

    LedBelli Bass Fine, Handmade Custom Bass Guitars

    Dec 25, 2008
    Pasco, WA
    Yes, to change the radius you just change the bridge or the bridge rails. In the long run I feel that it is expedient to just construct a completely new bridge for each radius you wish to use. Then changing the radius would take literally less than a few seconds.

    I abandoned the compound radius two or three years ago. In that context then yes, I find this fixture to be a drastic improvement. However, I do have some ideas about how to improve the old jig also.

    To answer a question from another poster, double-sided tape will work to anchor the heel of the neck, However, I am experimenting with ways to improve on that also.
     
    Last edited: Jan 11, 2016
  9. Scoops

    Scoops Why do we use base 10 when we only have 8 fingers Supporting Member Commercial User

    Oct 22, 2013
    Sugar Creek, Wisc
    I am me
    First I'd like to say thanks for posting this as well as all the other tid bits you have posted.

    I was wondering about this as well. I hate using DS tape.

    If I put my thinking cap on, and I look at the pics provided, it looks like you could secure the neck at the heal through the carrier into the back of the neck, and through the head into the top of the carrier.

    Beautiful!
     
    LedBelli Bass likes this.
  10. PDX Rich

    PDX Rich

    Dec 19, 2014
    Portland, OR
    Are those brass wheels from a sliding window assembly?
     
  11. Yoink!
     
  12. LedBelli Bass

    LedBelli Bass Fine, Handmade Custom Bass Guitars

    Dec 25, 2008
    Pasco, WA
    Screen door slider wheels . . . yes, although they could just as easily be a set of cheap roller bearings with a 1/4" center hole. I may make the change later . . .
     
    PDX Rich likes this.
  13. LedBelli Bass

    LedBelli Bass Fine, Handmade Custom Bass Guitars

    Dec 25, 2008
    Pasco, WA
    After testing the jig on a throwaway piece of wood, I made a number of modifications

    1. I widened the base channels and then I replaced the bridge casters with 3/4" aluminum sliders that run the full length of the bridge. This makes the channels self-cleaning from sawdust. (With the casters the channels would collect sawdust and the casters would start to snowball and then the bridge would ride roughly and unevenly.)
    2. I added a dust collection port that adapts to a full 4" dust collection hose. Massive suction power that gets the worst of it. I will continue to modify and improve this feature as I go.
    3. On the carriage I replaced the plunge base with the standard micro-adjustable base. This base is much more stable and accurate.
    IMG_2130.JPG IMG_2131.JPG IMG_2132.JPG IMG_2133.JPG
     
    PDX Rich and kaoskater08 like this.
  14. Jonny5bass

    Jonny5bass Supporting Member

    May 3, 2011
    Seattle, WA
    Way to come back with a bang! Great looking rig!
     
    LedBelli Bass likes this.
  15. Bassmanmike1

    Bassmanmike1 Sittin' In Limbo

    Jan 13, 2011
    Marysville, CA
    LedBelli Bass likes this.
  16. LedBelli Bass

    LedBelli Bass Fine, Handmade Custom Bass Guitars

    Dec 25, 2008
    Pasco, WA
    I was able to use this jig for the first time this week and the result was amazing! Least amount of finish sanding I've ever had to do and very little mess or dust. A complete success!
     
  17. Bassmanmike1

    Bassmanmike1 Sittin' In Limbo

    Jan 13, 2011
    Marysville, CA
    Cool!
    Was puttering around the shop this morning and came across some closet door rollers I had forgotten about. Quite similar to the screen door rollers you used. Think they will do nicely for this little project, and lord knows I've got plenty of scrap wood laying around. As soon as the weather warms up a little I'll be getting started on this. Too cold to work out there right now!
     
    LedBelli Bass likes this.
  18. LedBelli Bass

    LedBelli Bass Fine, Handmade Custom Bass Guitars

    Dec 25, 2008
    Pasco, WA
    Stay tuned - next up I am going to design and build, using a plunge base, a bench-top overarm pin router to streamline the routing of neck pockets, and pickup & control cavities. Maybe up and running by tomorrow!

    Eventually it will have neck profiling capability
     
    Last edited: Jan 22, 2016
    PDX Rich, Bassmanmike1 and Jonny5bass like this.
  19. Thanks for sharing all these wonderful jig designs, but why did you abandon the compound radius?
     
  20. earlysecond

    earlysecond In Memoriam

    Jan 26, 2016
    Love it, need one. Thanks for sharing it.
     

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