Hoffman Amplifiers Tube Amplifier Forum
Other Stuff => Your other hobbies => Topic started by: supro66 on August 30, 2010, 08:28:41 am
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EL34 AKA DOUG
I am going to build an eight string steel guitar
I need a tunning head made for 8 tunners
I have a 6 string Multi- Kord and it gave me the idea for the eight string tunner
milled on a CMM
I think you could sell these to other people also
6,8 or 10 string
this is what it looks like
(http://i282.photobucket.com/albums/kk243/supro66/GUITARS%20MUSIC/kord2.jpg)
I hope to make something like these
(http://i282.photobucket.com/albums/kk243/supro66/GUITARS%20MUSIC/lapsteel22-1.jpg)
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You need a real machine shop with a proper mill/CNC
I have a small router CNC that cuts soft items like plastic, wood, fiberglass, etc
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Wow, hopefully not to offend the builder... That is one ugly casting. Dittos on Doug's suggestion. Also meet with the shop owner/manager AND the programer. If you have any ideas to dress up this part, such as - outside perimeter design (scrollwork, etc.), radiused ends on the tuner rails, radiused outside edge, drill and countersunk mounting holes, drilled and tapped holes for the tuners, and heck, some shops may have a scanner program that may allow you to bring engraving designs in for them to do - or at least add your name. Bottom line, the extra cost of these items (if any) may surprise you! Make sure you ask. Even if you have drilling and tapping capability, unless you have a Bridgeport, you may be fighting the details. It would be nice to have something ready to go when you get it back. Maybe look at a hard brass, polish, and clear coat. Also ask about de-burring. Some shops with throw your parts in the vibrator for a couple of bucks and it will save you hours of hand work.
Make sure you post the results! Good luck!
Jim
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That would be a relativly easy sand cast and Aluminum would most likely be strong enough
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Yep that is one ugly casting that was the best they had in the 30’s I guess
I would do it in brass with some art work and have it chrome plated
Like I said it is just an idea right now
Most steel guitars are just all made out of wood in the tuner area
It could be done in plastic I saw a steel guitar in acrylic plastic it had lights inside it that changed color as it was played
Thanks I am going to retire in a few months so I can go back to building amps and guitar
I just might do the KISS method
(http://i282.photobucket.com/albums/kk243/supro66/steel1.jpg)
Keep It simple Stupid
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Cool.
I'm gonna build myself a nice one someday.
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I was going to say that a foundry and machine shop is probably what you need unless you go for a CNC'd part from a large block of metal
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Looks to me one step up from a hacksaw and drill-press.
Looks like 2" lengths of 1"x5/8" strap-iron, with 1 or 2 peg-sized holes and some screw-holes in each one. They seem to be set on a base cast with ridges to guide the strapiron, but some creative jiggery and a deft hand with the welder will do a one-off...six-off faster than setting up for casting.
You can set the straps and then drill, keep the holes aligned and pegs less-stressed.
Alternatively, hog it out of 1" aluminum, free-cutting brass, sturdy plastic or finest mahogany. $99 table saw or table-router. Set the blade up 3/4". Leave the fence in one place, use cardboard or veneer shims (popsicle sticks?) to shift the work over each pass. Cut the through-grooves, then set a stop, go in between and cut 2/3rd or 1/3 through to get the stagger.
The "free!" blade comes with most $99 contractor saws will chew non-hard Aluminum pretty well. They are usually carbide, though a bit coarse. A more-teeth replacement will cut a bit smoother but of course costs more. Hard brass is hard on tools, free-cutting brass (dollop of Lead in the mix) cuts pretty nice. Hard mahogany cuts well with sharp teeth, else it burns. In plastic the real problem is melting. I have some frightful expensive adulterated-plastic decking which cuts like wood (with an odd smell) but is so flexible I would not try to hold a pitch. A block of good acrylic may be stiff but it tends to go soft and turn into a tar-ball on the blade.
A dado blade will cut wider, do a slot in one pass. That may not be faster in metal- the $99 motor will already be working hard with a narrow blade. A wide blade is less passes but much slower per pass. Anyway wobble-dados are ugly and dangerous, and good dado heads are expensive.
Of course, start with a yard of cheap pine, get your technique down pat, before you hit the hard costly stuff.
That's a LOT of wasting-away, but a table saw or even a router chews better than a hobbyist CNC mill. Difference between a solidly mounted large motor, and some super-dremel pulled by large dot-printer motors. And it isn't like you need complicated curves-- all straight lines and stops. I'm not sure about Doug's but many simple CNC rigs won't do the top-cut and a side cut (except as another setup); the tool doesn't bend that way. (A ball-cutter might make a nock to guide your drill, but is a bad bit for the heavy hogging.)
There's some pretty sturdy casting compounds. Glue-up a pattern in pine or clay, take a mold, pour parts.
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PRR said
A dado blade will cut wider, do a slot in one pass. That may not be faster in metal- the $99 motor will already be working hard with a narrow blade. A wide blade is less passes but much slower per pass. Anyway wobble-dados are ugly and dangerous, and good dado heads are expensive.
You think just like me I have a wood working shop all of the tools I need
I have some Maple aging I am goint to work on
You are right about the dado
start out with a square block of wood set my table saw fence and dado cut
make my first cut turn the wood around an make my second cut
I now have two the same cuts the same distance
and keep going.
(http://i282.photobucket.com/albums/kk243/supro66/8stringheadwood.jpg)
then use my router and cut the strips to length
I guess the maple would be strong enough
Me and my shop
(http://i282.photobucket.com/albums/kk243/supro66/wood/wellandme.jpg)
I could keep it simple
(http://i282.photobucket.com/albums/kk243/supro66/GUITARS%20MUSIC/steelbegin.jpg)
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I guess I understand the do-it-yourself on this and there is certainly more than one way to skin a cat. However, a good shop could buzz what you want out of a block of brass with all the bells and whistles I listed in about 30 minutes CNC machine time, maybe an hour if you want fancy. Hog out, finish cut, drill mounting holes, turn on side, drill, drill and tap, turn on other side and do the same. I've been around this stuff for most my life and sometimes that's the only solution I see - it's easy if you have the equipment!
That is some perty grain on your pics! Now, is that "your" shop until your wife needs to pull the car in?!?!? That's how it works around here!
Jim
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That is some perty grain on your pics! Now, is that "your" shop until your wife needs to pull the car in?!?!? That's how it works around here!
Jim
No No that shop was built for me
I have a rancher with a 2 1/2 car garage attached to the house
The wife pulls the car in and walks into the kitchen
(http://i282.photobucket.com/albums/kk243/supro66/ME/stuco2222.jpg)
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Nice shop!!!
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Nice shop!!!
when it was new
(http://i282.photobucket.com/albums/kk243/supro66/ME/workshop22.jpg)
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Very nice! And it's still nice. Now it just has character! :grin:
Wish I had one too! :sad:
Jim
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Very nice! And it's still nice. Now it just has character! :grin:
Wish I had one too! :sad:
Jim
You are so right
I am a Character :laugh:
What I play Now with other Guitars
(http://i282.photobucket.com/albums/kk243/supro66/Supro%20Amps/MULTIKORD.jpg)
(http://i282.photobucket.com/albums/kk243/supro66/Supro%20Amps/supro.jpg)
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Mmmmmmmmmmmmmmmm. Pedals.
Cool.
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Mmmmmmmmmmmmmmmm. Pedals.
Cool.
Not a real pedal Steel Called a retuner
Tuned at C6
E Minor
C Minor
A Minor Am chord
G Major Play 4 Am7
E Major
C Major C chord
E
C
A# ONE PEDAL WILL RASE THIS STRING NOW i HAVE A C7
G
E
C
E
C
A
G# ONE PEDAL WILL RASE THIS STRING NOW I HAVE AUG CHORD
E
C
E
C
A
F# ONE PEDAL WILL LOWER THESE TWO STRINGS DIM CHORD
D#
C
E
C
A
G
F ONE PEDAL WILL RASE THIS STRING SUS CHORD
C
I CAN USE TWO PEDALS AND GET DIM7 AND AUG7 CHORDS
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The last off-the-wall one I built was from black Corian, 7 string, with one of my horseshoe pickups. It sounded good, but it wouldn't come close to a bakelite. (or a frypan)
An early Epiphone D8 used aluminum channels to mount the tuners. You could look into that.
Nice old Supro amp :smiley:
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For all of you guitar players
I worked on the song this weekend
Willy Nelson Nelson's
CRAZY
It has a four chord lead into a F chord
they are
F---F#dim-----Gm7----C7 to the F chord
That is one pritty lead in
It is real easy on the My Multi Chord
I use the Steel bar in the 5th Fret [ F ]
Push down a pedal slide to the 6th fret push down 1st pedal [ F#dim ]
Slide up to the 10th fret no pedals play 1.2.3.4. strings [ Gm7 ]
Slide up to the 12th fret push down second pedal [ C7 ]
Then slide down to the 5th fret [ F ] and staet the song
I built my first amp a Supro clone
(http://i282.photobucket.com/albums/kk243/supro66/Supro%20Amps/chissiefullview.jpg)
Parts from Hoffman
(http://i282.photobucket.com/albums/kk243/supro66/Supro%20Amps/lugs22.jpg)
The print
(http://i282.photobucket.com/albums/kk243/supro66/Supro%20Amps/SUPRO6420-schamitic.jpg)
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Cool amp. Love to hear some sound clips.
I love steel, but you'll laugh at what got me hooked. I really like the first two albums from The Friends of Dean Martinez. Some far out lap steel playing there.
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Does it humm?
There's a trivial change to eliminate all heater-hum, but it will take twice as long to warm-up.
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I got the Wards-Airline branded version of that amp.. It's cool. I bought it like 18 years ago for $40.
Thanks for the schematic!
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Ahhh, true PTP! I always thought the rats running around in the nest cancels all hum! :wink: Definitely need soundclips!
Jim
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Ahhh, true PTP! I always thought the rats running around in the nest cancels all hum! :wink: Definitely need soundclips!
Jim
I am not realy that good on it yet
I can do Sleepwalk, Rose Of San Antone and I am working on Crazy
It will be some time before I am good enough to put it on sound clips
I am going to retire the first of the year more time for music again
What is the best way to make a sound clip :embarrassed:
Some guys stop buy on the weekends we jam some Ventures, Kicks, City Of New Orleans, Garth brooks stuff
we all have some medical problems
The name of the band will be
The Medical Missfits
That schematic I made up from the original Supro amp I have
PRR tell me more about making the HUM go away