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Andyjr1515

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Posts posted by Andyjr1515

  1. 1 hour ago, Bizman62 said:

    There's not too much wiggle room for slack, is there? I mean, you'll have to pull the string quite tight to get it into pitch within the thickness of the headstock.

    That's the straightest straight string pull I've ever seen!

    Yes - exactly that.  It actually makes it very simple - you pull the end taut and clamp.  There is a surprising amount of tensioning left and so, even for reasonable levels of up-tuning, they seem to work just fine :)

     

    • Like 1
  2. Incidentally, if you've never seen the Steinberger Gearless in action, this is how they work:

    To string them up, you turn the knob at the back, which raises the spindle and clamp part until, at the end of its travel, it exposes the string hole:

    IMG_1139.thumb.JPG.6755c31293f2fd41ae5d492f891e8d3b.JPG

     

    You then thread the string through the hole, pull it tight and clamp it by screwing in the 'T' clamp at the top:

    IMG_1140.thumb.JPG.8281e4e41c465d47389a87aa55102a95.JPG

     

    Then you twist the knob at the back, which draws the spindle down into the casing, complete with clamped string, and bring the string up to pitch :) :

    IMG_1142.thumb.JPG.f471fe22bf8f0fee2a3ccc83e134c6fa.JPG

     

    They are very smooth in operation.  Personally, I love them and - as Epiphone used to fit them on their early Firebird guitars including the one that Alex currently plays - Alex does too :D

     

     

  3. One of the main skills to learn with guitar building is the sequence of 'I can't do that before I do that other thing, and I can't do that until I've done something else' :lol:

    So my present sequence challenge was that: "I can't carve the neck until I've fitted some strings (because I'm weird - after a rough shaping with a spokeshave, I generally creep up to the neck profile carve while actually frequently playing with a set of strings fitted)  and I can't fit the strings until I've fitted the T-o-M and stop tail, and I can't do that until I've fitted the tuners so that I can position the bridge correctly!"

    So first job was to fit the Steinbergers.  They need a pilot hole drilled to accommodate a short peg that orientates them correctly:

    IMG_1099.thumb.JPG.289f41271a522f649dd6016beb6ec40f.JPG 

    IMG_1106.thumb.JPG.426dc0931b5c2db39c6e79398d02a024.JPG

    IMG_1105.thumb.JPG.043e6efbe6ff38e91de9617d09de0715.JPG

    IMG_1115.thumb.JPG.d76130774aa5828df8a3ba04eb4a318a.JPG

    IMG_1121.thumb.JPG.2f21ab11e410de5d3192e5b90617f10f.JPG

     

     

    • Like 1
  4. 22 hours ago, Bizman62 said:

    That's a way too underrated method. People struggle with computer programs and try to find templates while the easiest way would be to take a big box of crinkled cardboard and cut a full size model for seeing how the design would look on the player. And as shown, using close enough coloured papers for smaller design details.

    I'm not sure it's a generational thing - pretty much all of my career has involved the use of CAD - but I think better when I'm holding a pencil in my hand... 

  5. The trussrod was installed and then the fretboard glued on with a maple and ebony veneer layer acting as a demarcation line.

    Next was working out the headstock.  I was going to using the excellent Steinberger gearless tuners which gave me the advantage of not needing to worry about the distances from the tuner to the edge of the headstock.  I played around with the options to get my string runs straight (the strings go into the centre of the tuners so no offset needed for spindle diameter, etc):

    Headstock.thumb.jpg.2d3d47cdcd7e22b3943cf1812d694e63.jpg

    And then, to try to reflect a touch of the body vibe to the headstock, played with the idea of a bit of ying-yang with some paper and black plasticard:

    IMG_1089.thumb.JPG.13adeac1834ae32d874c41e15baa5728.JPG

     

    Being happy with that, I cut the shape out of a thin sheet of ebony, including scroll sawing an integrated trussrod cover:

    IMG_1091.thumb.JPG.9a8d5cf22ae5de3ce03f9ca55258f989.JPG

    IMG_1093.thumb.JPG.f868ea619daa7e50e404956cd6924172.JPG

    Yup - that would do.  It will also get the top two treble strings at a lower level, increasing the break angle on those two strings :)

     

     

     

    • Like 1
  6. Again, my pathological hatred for routers means that I take a slightly unconventional approach to cutting out pickup chambers :rolleyes:

    It is similar to the weight relief chambers above.  After marking them out, I drill all the pickup corners, with a drill 1mm larger diameter than the pickup corner sizes:

    IMG_E1027.thumb.JPG.a246ccf717179c866993ab23a4be383d.JPG

    Then hog out part-depth with a forstner:

    IMG_E1028.thumb.JPG.32eac7f610972e558bad4b80ab1dd15f.JPG

     

    Then remove the 'waves' and neaten up the chamber sides to a depth of around 10mm around the edge with a chisel and mallet:

    IMG_1029.thumb.JPG.dbc11ff354bf49264e9da7bdfd5e8975.JPG

    And, finally, use a palm router with a fully captive top-bearing flush bit to follow the chiselled periphery to clean up the sides and go down to the final depth:

    IMG_1036.thumb.JPG.ee10c4b4c7b7969c8585dfc381b71466.JPG

     

    And last, of course, a quick check to see if it fits :)

    IMG_1031.thumb.JPG.e947f5e87668f6240d3b933d95b9ae1e.JPG

     

    • Like 4
  7. On 6/18/2023 at 5:58 PM, mistermikev said:

    I would say: "it's good" \0/

    Thanks @mistermikev  :)

     

    I next slotted and tapered the fretboard as I would be soon cutting a slot in the ebony top plate and that would need to be with a finished-size fretboard end and taper.  I used the G&W fret-slot cutting mitre block:

    IMG_0966.thumb.JPG.6f90b4aadd233d589afd11e6f2d3518f.JPG

    And while I was there, fitted the pair of MoP swifts at the 12th:

    IMG_1007.thumb.JPG.f8752a81b99806dfce2304007cd49af3.JPG

     

    The end of the fretboard will 'cut through' the top at the angle of the neck top - so I would need a ramp.  Of course, this would be the same angle as the offcut left from shaping the through-neck beam so I could use that.  I had already cut and positioned the top ready for the future gluing with a couple of kebab sticks drilled through into where the pickup chambers would be which will stop the top floating around on the glue when the time comes (ignore the weird headstock, by the way.  Nothing to do with this project ;) ) ...

     

    Ramp cut and glued and the 1.5mm maple demarcation layer joined and rough-cut:

    IMG_0977.thumb.JPG.349e1dccb115d2473f0f94830339ce31.JPG

    So, all being well, when it's all glued up, it should be doing something like this but with the ramp filling the violin-type overhang:

    IMG_0982.thumb.JPG.fc4c3dca68c239fdd93dda1bc643165b.JPG

     

    And so, with glue applied, kebab sticks holding everything in position the clamps can be put on:

    IMG_0978.thumb.JPG.8a69615ed0c5d0556a4e90f7d942e9f1.JPG

     

     

     

     

    • Like 2
  8. With the alder back wood cut to oversize shape and the book-matched ebony glued and also rough-cut, I could mock things up and see if it might work:

    _MG_8630.thumb.JPG.fae73270d830e26fcdb74b97fc73d015.JPG

    _MG_8631.thumb.JPG.5ef603604a89fcc5082a9e60058d4417.JPG

     

    The ebony will have a maple demarcation layer eventually:

    _MG_8628.thumb.JPG.66ba3e38afdf8f68c9dcdc3775ed895e.JPG

     

    Well, it's got half a chance, so time to glue the back wings onto the neck:

    _MG_8638.thumb.JPG.50c7890ad4931ac3053c596b7fbd8808.JPG

     

    The wings are of a 'generous' depth because the guitar is planned to be curved at the back.

    I want this to balance better than a Firebird but still take some weight out so I chambered forward of the CofG.  Folks who have seen my previous builds know that I hate routers and so I used my normal method of hogging out with forstner bit, then chiselling a cm or so down to create a smooth router bearing run and then, and only then, use a top bearing router bit - now fully captive - to tidy up the sides and rout down to finish depth:

    _MG_8642.thumb.JPG.8cf275f88759cafaf6e87fb34945b76a.JPG 

    _MG_8644.thumb.JPG.dd5299f3162f786097150383d7539807.JPG

     

    Finally, I also cut the cable slot between the two planned pickup chambers:

    _MG_8645.thumb.JPG.5e70f779da90396951fbd60bef97820d.JPG

     

  9. This is going to be a through-neck and so generally I start with the neck.  But - in that everything affects everything - I won't be able to sort the neck angle, based on the adjustment range of my intended bridge, without knowing what the fretboard thickness is going to be.  On that basis, I actually started with the fretboard radiusing first.

    I used the G&W rig to do the bulk of the work:

    IMG_0961.thumb.JPG.8b7ffd2f960f18528b099b3490d5f087.JPG

    Then sanded out the router marks with a radius block:

    IMG_0962.thumb.JPG.4737a25fbcb6aba755ca49d6b26fbdba.JPG

     

    And after that I could draw up the string runs and calculate the neck angle needed, which - using a Tune-o-matic type roller bridge - ended up around 3 degrees.

    After gluing the two maple outers to the 6mm ebony inner to make my neck blank, transferred the measurements from my calcs and spent a happy hour or so cutting the neck angle, headstock angle and neck side profile on my accurate but power-challenged hobby bandsaw!

    IMG_0940.thumb.JPG.59588ce9f390e73d3003e27854e1963a.JPG 

    • Like 3
  10. This is an initial sketch of what I have in mind:

    O6kqhOgl.jpg

    Note that the 12th fret line is much, much closer to the body than a Firebird - basically I am moving the whole scale-train back an inch or so.  That does take away from one of the more notable features of the Firebird - that reverse jutting jaw look.  But Alex (my son-in-law) is happy with that.  He is also happy with the fairly restricted access to the upper frets - as I said above, this is being designed specifically to suit how he plays.

     

    The idea is to have the back in Alder:

    KyZGMChl.jpg

    And a part-top in the bookmatched figured ebony:

    nUluoPXl.jpg

    • Like 3
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