The Hub

The latest builds, repairs, and conversations from across Looth. Activity
Filters AND Search a style× In Tools, Spaces & Robots× In New Builds× In General× Reset all
Private member DiscussionAcoustic Builds

Mandocello neck block

I am building an archtop mandocello (A style) and I'm trying to find out how to make the neck block. It would be more or less like an A style mandolin neck block, but obviously quite a lot bigger. More or less like the image attached. The blank should be aprox 10 x 8 x 12 cm. I'm trying to find a piece of hardwood big enough for this, would it be acceptable if I made some kind of laminated piece? And how should the grain direction be idea…

2 replies
2 replies
LikeShare
Ian Davlin
The traditional A style mandocello neckblocks were mahogany. There are some really good reasons for laminating them because there are forces on the block that make any single grain orientation a damne…
Private member DiscussionDesign and Testing

Incoherence between CAD and test-piece

Good morning everyone, I was taking some measurement on production necks with scarf-joint (13° headstock angle) to add some machining process with the cnc. I so recreated the standard neck blank feature (100mm wide and 20mm thick), then drawed the 13° angle. Everything correspond the to the real piace but two measurement: the startingcut behind the break angle is ''off'' by 20mm +/- as well as the cut on the bottom, still off by 20mm…

1 reply
1 reply
LikeShare
Is it possible that the angle of the scarf joint is different from the angle of the headstock on the real piece? Could be a manufacturing quirk
Private member DiscussionAcoustic Builds

Wood-Body Resonator Guitar Construction – Materials & Suppliers?

Hi Everyone, I believe this may be my first post here, so just a quick introduction — I’m Andrew in Milwaukee, WI. I’ve been building a few years. My luthier eyes were opened first by Charles Fox in Portland which led me to the Gallop School. I recently retired from a tech career and I am now based in Milwaukee, WI focusing on acoustic builds. I’m currently exploring wood-body resonator guitars, and I’d love to learn more from t…

2 replies
2 replies
LikeShare
Ian Davlin
Andrew, I'd like to talk to you about this question. Could we connect on a zoom call ?
Private member DiscussionCAD/CAM

2 Surface 2 Transition

Back at tinkering with the new Isoparametric Curve tool in Fusion. Scroll down to PICTURES LETS GO! If you want to skip this little walk through Autodesk Fusion memory lane, clearing up some of the UI conFusion. Why something so seemingly basic, is just being added today. 2009- Autodesk Inventor, hybrid modelling experiment, parametric and direct CAD in one hybrid system. 2011- Autodesk acquires T Splines Inc. an organic modeller still in…

LikeShare
Private member DiscussionAcoustic Builds

Mandocello top tap tuning

Hi all, I am building a mandocello, Gibson style but with f holes, currently working on the top. I got to a point where I carved it to about 5 mm in the center and about 3,3 around the edges. If has some flexibility but still feels quite stiff. I tap and listen but having experience only with flat top guitars I don't really know what I'm looking for in terms of tap tone and flexibility. I know there is no correct answer to this, but anyo…

12 replies
12 replies
LikeShare
Private member
One more update. I have been generating Chladni patterns for the top. I normally do this with the closed box, as most luthiers seem to think that on free plates it's not very useful, but I found this…
Private member DiscussionElectric Builds

Venturing into the unknown...

Hello friends - I am a bass guitar builder who is considering building a neck-through Flying V-style guitar with a 25.5" scale length and a Floyd Rose tremolo bridge. I have not built any neck-through instruments and would appreciate any guidance on where to begin with respect to laying out the design, in particular, getting the neck angle right and the headstock angled properly. Any resources are welcomed and if someone has any interes…

LikeShare
Private member DiscussionElectric Builds

Truss Rod Length - Is there a "rule of thumb"?

Friends - My "go-to" truss rod for my basses has been the rod sold by LMII; however, since they are now out of business, I am evaluating what other rods are suitable for bass guitar necks. The attached photos are all showing truss rod lengths from the front edge of the nut slot location on the blank. One photo shows my last LMII rod (23 1/2" in length) vs. 2 other rods, one longer (23 11/16") and one shorter (22 1/4") -- all measured f…

2 replies
2 replies
LikeShare
Private member
I think that the 22.25 is fine to run. It lands over the neck pocket and those last few frets are getting sanded down to create a fall off anyway. Have you ever thought about changing the design and…
Private member DiscussionElectric Builds

Custom Headless neck for Ibanez 7 string

Hey Loothers, A client reached out requesting a neck with wider nut for his headless Ibanez 7 string. He would like it built with rosewood for the neck and the fret board which has been stored for years at a consistent 45 to 50 % humidity in his home. The frets are angled to make it play more ergonomically but it is not a multi scale instrument. He plays finger picking fusion style and simply needs more neck width at the nut to play mu…

2 replies
2 replies
LikeShare
Private member
@member Its plausible that no one wants to touch this project, but I'm curious if we should have a "help wanted" section for folks that might want to pick-up jobs. Maybe not a need, but thought I…
Private member DiscussionTools and Jigs

Jointing archtop guitar tops

I usually build flat top guitars and usually joint the tops and backs with a Stanley no 5 style of hand plane ( only different brand). I want to build an archtop instrument, and the wood blanks I have are longer than usual and, of course, a lot thicker. What size plane do you use for kind of job? Would it be easier with a longer plane (6 or 7)? Thanks! Jorge

1 reply
1 reply
LikeShare
Ian Davlin
I used a no 7 when joining mandolin tops. It's just an all around handy plane. Also looks great on a bench or shelf. Really bumps up the looth cred.
Private member DiscussionFolk, Bluegrass, Irish, Old Time Instruments

My first mandolin

Hi all, just sharing a couple of shots of my latest build, an A5-style mandolin with a goth soul 😉 Tonewoods Top: Alpine Spruce (Italy) Back & sides: Flame maple (France) Neck: Birch (Sweden) Fretboard & bridge: African Ebony Dimensions Scale length: 352.4 mm Nut width: 30 mm Fretboard radius: flat Total length: 660 mm Body width: 260 mm Finish Hand-rubbed stains and acrylic satin finish Features Hammered steel pickguard and truss rod cover Moose antl…

10 replies
10 replies
LikeShare
Ian Davlin
It really looks stunning. Great work !
Private member DiscussionElectric Builds

Bridge Type and Tone

Hello All. I'm new to the group and a beginner in terms of building (only built a couple so far). I was hoping I might gain some insight on the effect bridge type has on tone on a solid body guitar. I have been building guitars with hardtails but I'm curious about wraparounds. Of course, with hardtails the whole device is screwed to the top where the connection on a wraparound style bridge is not as direct being held up by studs. Any th…

7 replies
7 replies
LikeShare
Private member
Sounds like you’ve really been down the road with this. What about compound parts. Brass saddles on a steel or aluminum base, that kind of thing. Thanks for your info!