Saturday, 9 February 2013
the home-made orange guitar body has sound (Pt 8)
Well, all the wires are inside the guitar body now.
Or so I thought...
I decided to plug it in and see what it sounded like without a neck or any strings.
Silent would be a good answer.
Unfortunately, not to be. There was a big hum when I touched the tone controls.
Brrp.
I realised my mistake. I'd been thinking of the guitar body as a ground. Like in electronics, earthing to the chassis is a pretty routine thing. Of course, the guitar chassis is made of wood, so doesn't work too well.
Another round with the soldering iron, this time to make a pretty little silver wire circuit between the four control knobs, so that they share a common earth.
It's worked a treat and I just get a hiss when I turn the amplifier up high now, with everything else ominously silent.
My next experiment was to hold the plugged-in neck-less guitar body face to face with my unplugged telecaster. Strum the strings on the telecaster and see if the new guitar pickups could sense the vibrations?
Yay.
It works. In all the main switch positions. The guitar has sound.
Now to add a neck, bridge and the strings.
Then to learn about intonation and action.
Friday, 8 February 2013
building the orange guitar (part 7)
Everything is starting to look orange now.
Although out of the haze, a guitar shaped artifact is beginning to take form.
As I suspected, the bodywork is proving the most difficult. Some of it has been a question of learning as I go along. I've now reached the stage where some of the metal parts are coming together, although there's still a fair amount of wiring to complete inside the body. I've realised that guitar maker Fender put their controls onto little plates for a reason.
By comparison, my design means threading wires all through the body and I'm starting to wonder if that switch in the 'Les Paul' position was such a good idea.
It creates a diagonal channel right through the middle of the guitar, from the plug socket which is bottom left to the switch which is top right.
I've also had a few dramas with the clear coat lacquer, which does all kinds of interesting things after it's been sprayed. I gather I should wait about a week and then to sand it to get it very shiny, using 2000 grit.
I'm agonising over what to do about the fretboard now. I've got a nice rosewood finger board with some cream coloured inserts, but I don't know whether to paint the exposed wood areas. I'm thinking to leave it 'natural' as a tell tale-sign of the 'Made in England' nature of this guitar.
I'm hoping to fire up the circuits this weekend, to check for hum. There's another 20 or so connections to solder first.
Thursday, 7 February 2013
ee-bac-gone?
I see the new Baccalaureate (Baccalauréat?) exam system promoted by Mr Gove is to be abandoned?
A pan-European idea purportedly scuppered by European Union procurement rules?
Or is the red light some handily contrived excuse because everyone in the 'education franchise' thought it wouldn't work?
Gove condemned GCSEs as insufficiently demanding, instead requiring more 'O level-like' end of year exams instead of assessed coursework. He wanted the certificate-less system in place before the next election and the first exams in 2017 - which teachers, Ofqual, many MPs didn't believe in or believe possible.
For le bac, the French have had since Napoleon's time to get it working properly in its various BAC S, ES and L guises.
It will be interesting to see how Gove's climbdown gets spun today. With Orwell still in the syllabus, there's a kind of doublethink around what is being said.
As a member of the Notting Hill Set, Gove is firmly in the Cameron, Osborne, Vaizey clan. But maybe not Bullingdon enough for the support that Osborne receives.
So let's guess which of Gove's advisors break cover over this one?
No 'Gove-levels' certificates for the right answers.
Wednesday, 6 February 2013
high visibility orange guitar (Part 6)
I've decided that this guitar I'm building will be difficult to lose.
The orangeness is coming along a treat. I know most people wouldn't do this kind of paint job, but I'm thinking that I'd rather have something that obviously stands out instead of another black or red guitar (I've got both those colours anyway).
There's also a well-known term in paint spraying called 'orange peel' when the paint goes on a little spottily. I'm thinking that "it's not a bug, it's a feature" to cover up my own spray painting limitations.
So if the finish is slightly textured, then it will be a proper orange peel finish for an orange guitar.
I should have listened, baby, to my second mind
Everytime I go away and leave you, darling, you send me the blues way down the line.
Oops. No. That's from the lemon song.
Tuesday, 5 February 2013
adding orange bits inside the home made guitar (Guitar Part 5)
That's the 'outside' view of the controls for the guitar that I'm building. I decided to put them on a cardboard template because all the pieces look rather similar and I'm sure I'd get them mixed up.
Fortunately I already have various electrical tools and equipment, so the new cost of controls is quite small, a few resistors, capacitors and switches.
I'm part way through assembly, but I'll have to wait until the guitar body is further advanced. I need to thread certain components through the body before completing the soldering.
Yes, I have assembled plugs in the past only to have to take them apart again when I realise the outer shell of the plug had to be threaded onto the wire first.
I decided to use two volumes and two tone controls but make them push-pull switchable. My plan is to have any combination of the coils covering series, parallel and out of phase.
I'll draw a tidy version of my circuit diagram later. The one I'm using at the moment is getting somewhat messy.
Monday, 4 February 2013
the home made guitar reaches the tack cloth stage (Guitar Part 4)
The guitar project is proceeding in the background. I've a few days at home this week, before I travel to Liverpool for work on Thursday.
It's quite useful because I'm at the spray painting stage. This appears to require frequent sessions spraying very thin coats, first of primer and now I'm moving on to the Ford Focus GT Pearlescent Orange middle layers.
The face mask seems even more important because I can see all the tiny aluminium particles used to make the pearlescence as they float in the air.
I've also got a whole selection of 600, 800, 1200 and 2000 wet and dry silicon carbide paper for the intermediate sanding and something called a tack cloth to wipe down the prepared surface. That's a whole new learning curve for me.
The timber for the body is alder, which is relatively inexpensive but quite stable.
It is more suitable for painting in a block colour, rather than staining to bring out the not very interesting wood grain.
I see that fancy guitars get made of harder woods and they can have very attractive patterning. I suspect that is why they get stained to show the natural wood grains. I'm realistic enough to know that I'd just ruin anything too fancy.
They say that the wood affects the guitar tone too. I understand the basic physics, such that no-one makes electric guitars from hard rubber or plastic, but I also wonder about the whole maple vs mahogany vs walnut discussion. I'm sure the guitar's own resonance must make some difference, but I can't help thinking that on an electric guitar the signal chain of pickups, tone controls and amplifiers will be the more dramatic factor. Maybe someone should run some blind tests of different guitars.
Anyway, I see lots of Fender guitars are made from alder, so it can't be too bad.
I've also started to] marshal some switches for the various controls. I decided to make a cardboard template and screw the controls to it. Even with just two pickups there's a surprisingly large variety of wiring options.
(Building a guitar? See also parts: 1, 2, 3, 4, 5, 6, 7)
Sunday, 3 February 2013
49ers lament #FAWM 3rd lyric
I wrote this whilst watching the game. It's another FAWM February Album Writing Month lyric - although I don't think it would make it to any album.
It's based on a true story when we went to see the 49ers at Candlestick but didn't get in. I was thinking of a tune along the lines of 'The wreck of the Edmund Fitzgerald' when I started, but it's kind of wandered.
Come gather ye round and I'll tell you a tale
Of the legendary park known as Candle-stick.
We Brits decided to go, to see the big show,
But events, they conspired against us.
We should have known best,
as we moved from Milpitas
To the luxury hotel in San Francisco.
We all had big suites
Where we should have to meet
A man from a company selling.
Instead in my car, we travelled not far
to the 49ers game at the stadium.
The concierge said he could get us all in
but we'd have to pay five times normal.
Go 49ers, go;
Let us see you 49-ers, so.
So "No" we both said, "we'll snag tix at the park,
Someone is bound to be sell-ing"
And sure enough, near the game
some guys said they could help us to get in.
We'd have to wait on the lot
In their chosen special spot
for their man with the tickets to ar-rive
Go 49ers, go;
Let us see you 49-ers, so.
We waited an hour and things just turned sour
We'd no ticktet and the game had now started
So we drove to the coast to shoot pool in a bar
and watch it play out on tel-e-vision
Go 49ers, go;
Let us see you 49-ers, so.
Our bad luck wasn't done
Cos when we left we forgot
Friend Steve's new American leather jacket
So next day we drove back
To Pac-if-ic-a for the coat
then back to San Fran-cis-co airport
Go 49ers, go;
Let us see you 49-ers, so.
I still have a tee-shirt, with 49ers on
But somehow the glitter has faded.
Go 49ers, go;
Let us see you 49-ers, so.
Go 49ers, go;
Let us see you 49-ers, so.
shirt sharp shock #FAWM
visiting the sup-er-mar-ket
buying week-end beans
had to pickup laun-der-y
to find those shirts they'd cleaned
that's when I got it
the shirt sharp shock
yeah that's when I got it
the shirt sharp shock
"Have you got your little ticket?"
asked the lady, all polite.
"No I have forgotten it
Do you think it'll be all right?"
that's when I got it
the shirt sharp shock
yeah that's when I got it
the shirt sharp shock.
"You havn't got your ticket
though your shirts are hanging clean.
That's twenty two pounds fifty
just pop your card right in"
"But I know I've paid already
I always pay up front"
"Sorry without your ticket
no money then no shirt"
So that's when I got it
the shirt sharp shock.
Yes that's how I got it
The shirt sharp shock.
alright now
shirt now
shock now
turn up those cuffs now
goin' home now
shirtless
penniless
cuffless
justice less
that white spray paint goes everywhere (Guitar Part 3)
My hands have gone white today.
It's the spray paint primer. I've been using one of those masks too and it's quite interesting how quickly the outside of it has gone a sort of grey/black colour.
I suppose I'd expected it to go white like my hands. It probably illustrates that there's all kinds of other stuff in the air that I'm breathing.
There were two of the masks in the pack but the current one still looks white on the inside, so I guess I'll use it for a while longer.
Kind of Darth Vader. Except white. Mainly.
Saturday, 2 February 2013
smack hands with the devil #FAWM
As it's the weekend, I thought I'd have a go at starting FAWM (February Album Writing Month). Here's a ten minute warm up before I head out get some rattle cans.
smack hands with the devil
shake the monkey out the sack
I look into her eyes
'n see just pity comin' back
This ain't no place for livin'
They busted down the jamb
Rifled all my money
Said I owed it to the man
smack hands with the devil
shake the monkey out the sack
I looked into her eyes
'n saw just pity comin' back
Gonna leave this town tomorrow
Last few dollars in my shoes
Tied to one last bourbon
An offer I can't refuse
smack hands with the devil
shake the monkey out the sack
I looked into her eyes
'n saw just pity comin' back
Once she said she'd wait for me
I had money from the cards
but when we'd drunk the last of it
she played her final words
smack hands with the devil
shake the monkey out the sack
as I look into her eyes
'n see just pity comin' back
I know, I know.
Friday, 1 February 2013
preamble to making my own guitar (Guitar Part 2)
It doesn't look much yet but I've started to assemble the bits n' pieces for my guitar project.
I'm using the blog here in a very traditional way as a project diary of my thinking. That way I can look back at my imbecilic ideas later and chuckle.
I'm already realising how little I really know about this. My original premise was just to have a simple bash as a February project, but I'm having some different thoughts now I've started.
I'm trying to avoid 'creeping elegance', but at the same time want to make something that is actually usable.
A few points have come to mind in the early stages:
- The body: I think I can have a go at that.
- The fretboard: Way too difficult for me. Frets, Inlays, spacing, tensioner. I will need to procure this.
- Electronics: Straightforward. Some potentiometers, a couple of capacitors and some switches
- Paint job: Probably much harder than it appears at first inspection
I've had a chance to look at a few web sites where other people make guitars. I've decided that although I could try to make a copy of something recognisable, it will probably be better to make something -er- unique.
Someone's website showed what I thought was a stunning paint job on their own guitar project. Then others had remarked that the 'sunburst finish' wasn't quite right for the model in question. I don't want that, I'd rather invent something of my own based loosely on tried and tested designs.
I've decided to go for a traditional 'Les Paul' derived shape; it's a pretty and curvaceous guitar that also allows the various controls to be built into the wooden bodywork. I've tracked down some drawings but won't get too precious about the overall dimensions, as long as the string distances are correct.
Body
With a solid body and a screwed on neck, it should give me the ability to make the basic guitar parts fairly strong, with some ability to adjust. That's my pragmatic take on tone and sustain. I know everyone goes on about 'legendary' and 'vintage' guitars that cost thousands of pounds made from rare timbers. I'm thinking that if I can make something for very modest amounts, it will still be better than my playing ability.
Fretboard
I'll source this piece ready assembled, but add my own tuners.
Bridge
The bridge is another area where I think I'll need to spend slightly more than the bare minimum. It's so that I can adjust the strings in case the body isn't laser perfect (it won't be). I see that there is a type of bridge with little wheels on it to assist this. I've decided that it will have to be a fixed bridge (no tremolo) because adding the musical equivalent of a crossbow into the design is too difficult.
Paint
I've decided to go for a block colour and to make it something striking. I'd rather have people ask 'What on earth is that?' than have it blend into the background. It's also a way to hide the relatively inexpensive timber used in the construction. It will come as little surprise to those that know me to know that I've selected an orange colour, with probably black controls.
Pickups
The obvious thing to do with a Les Paul shape is to put two humbucker pickups on. My electronics comes in here again and I think I'll go for something less conventional, although using the humbucker form factor. I'm looking for something that can mix a humbucker with maybe a rail pickup so that I can make the device work in multiple ways.
Controls (a bit technical sounding)
There are a few components where my technological background makes me think I shouldn't scrimp too much. I've already looked at a few sites that sell volume and tone controls and I was surprised to see that many are so tiny and flimsy looking.
Instead I'll get some traditional 'big' old school potentiometers for the volume and tone circuits. They seem to be an important part of the signal chain and I can't bear the thought of using components that look as if they belong in Christmas crackers. It will make the soldering easier too. I also need to learn the special jargon for this used in guitars, such as logarithmic pots are called 'audio taper'. I've already checked that with humbuckers I need 500k audio taper pots for volume and 500k linear pots for tone with probably 0.047μF electrolytic capacitors. I'll get controls that have embedded switchgear I think, to keep my options open without adding more controls to the body.
Wiring
I'll want the control layout to look 'normal' but have a few surprises in the circuits. If I go for a humbucker/rail combo, then I'll want a wiring that supports series and parallel for either or both sets of coils, plus maybe something out of phase. That's something I can start scribbling out designs for right now.
I'm aware some of this may read as gobbledygook to passing readers, but I'm sure I'll get over it. Oh, and I've somehow got to fit this in around everything else, so don't be too surprised if it overruns.
(Building a guitar? See also parts: 1, 2, 3, 4, 5, 6, 7)
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