Charcoal Frost JM (Buick II) - Finished pics page 5

Talk about modding or building your own guitar from scratch.
Post Reply
User avatar
theworkoffire
PAT. # 2.972.923
PAT. # 2.972.923
Posts: 4143
Joined: Sun Sep 02, 2007 12:59 am
Location: Punching the future in the face, London
Contact:

Charcoal Frost JM (Buick II) - Finished pics page 5

Post by theworkoffire » Sun Oct 10, 2010 2:27 pm

EDIT: Finished - pictures here on page 5: viewtopic.php?f=8&t=40643&p=633194#p633194



I sold the Buickmaster neck to forum member Rexter, but the Allparts body he was going to put it on had been really badly set up by his tech: neck pocket widened with a blunt chisel, bridge posts drilled by hand off-centre and not vertically etc. I took pity on it, and offered to swap it for my body; it seemed like a waste for such a good combination to be split up, and I was planning a change of finish at some stage anyway. So this thread is the complicated story of the resurrection of the Buickmaster.

My target is this - yellowed charcoal frost, vintage black anodised guard, Peter Leonard 60s pickups, AVRI hardware, swamp ash modified Allparts body, scratchbuilt b&b neck:

Image

The neck is one I've been on with for ages; originally a commission for another forumite that was taking me too long to make so I backed out of the sale. I've been slowly finishing it for about a year, doing most of it alongside the MOTORIK II neck:

Image

Image

The plan was to use it on the Buickmaster, and I had just enough sherwood green left in the bottom of a can to give it a thin coat, but I ran out before I could get it perfect, and that started me thinking about doing a re-fin and going for something different. So the other day I removed the tuner bushings with a reversed drill bit and a rubber mallet, and sanded the headstock back down nice and smooth.

Image

Once the bushings were out I bolted it onto my workbench and re-shaped the back, having left it far too fat to begin with. Every neck I've ever made has had to be re-done like this after it's been fully finished. One day I'll learn to do it properly straight off...

Image

Then I gave it a coat of charcoal frost (from Manchester Guitar Tech) and it's getting its clearcoats at the moment.

Image

I don't have any pics of the first part of the body restoration. Rexter had sprayed it sherwood green, which I sanded off, then while I was filling the shoddy bridge posts and neck pocket I decided I wanted to do a few modifications. I glued alder dowels into the bridge posts, then lined the neck pocket with a thick layer of epoxy filler. Then I took a few mm off the top and bottom of the body to drop it down to about 38mm thick, same as a Mustang. The Buickmaster was this thick, and I liked the feel of it. I re-routed the body and cavities using my vintage JM template, then re-cut the neck pocket...

Image

...into the epoxy repair, and re-rounded the body edges to a more vintage-correct radius. The differences between the Allparts and the vintage bodies aren't massive, but you can see where the sherwood is left on some of the cavity edges that didn't quite align.

I sanded it down to about 180 grit, applied a cellulose sanding sealer by hand, then grain filled and re-sanded down to 320 before another coat of sanding sealer and another sand. Then I sprayed a coat of Behlen's Vinyl Sealer, which I think is the same stuff as Fullerplast in the US. It's the first time I've used it, and it's incredible. After one coat I was able to sand out most of the grain wave that ash always ends up with. Another first for me, and another revelation, is wet-sanding with white spirit. I've tried all manner of things in the past, but this is by far the best. This is the body after one coat of sealer and a first wet sand (400 grit):

Image

Image

The second coat of sealer and wet sand (400 grit) left a perfect smooth matt surface ready for priming.

Next job was the bridge post holes - I left it until now so drilling through the sealer would leave a nice crisp edge with less chance of the drilling tearing up the dowel inserts.

I measured and drew a centre-line, then drew lines 30mm either side of the centre to allow me to line the holes on the guard up centrally, then drew round the inside of the guard holes:

Image

Then I drew lines joining the outside edges of the two circles, measured the centre of these, and drew in the centre-line for the new holes. Then I marked out 1 7/16" either side of the body centre-line to give the 2 7/8" bridge post spacing:

Image

I double-checked this was right with the bridge, then used a sharp nail to punch indents into the wood...

Image

...then I drilled 1.5mm pilot holes about 20mm deep:

Image

Without the masking tape you can see how off the previous bridge holes were. They were way off vertical, too:

Image

Next I measured the diameter of the bridge posts I'll be using - these are AVRI ones, 3/8". Other Japanese/aftermarket ones I've had have been 9mm - I learned to double-check this the hard way:

Image

I drew a line in a cavity just beyond the depth of the post, lined the drill bit up with it, and set the depth-stop on the press...

Image

...then drilled the holes with a 3/8" wood bit:

Image

Re-checking with the guard, they're nice and clean and central:

Image

Then I shot a coat of primer:

Image

When I took it off to give it a sand between coats I realised I'd forgotten to drill through to ground the trem, so I did that with a 1/4" pilot bit from a mortice drill:

Image

There were just a couple of spots where I needed to sand down past the primer to smooth out the sealer a little more (again, wet sanding with white spirit and 400/600 grit), then on with a second coat, which I just managed to finish before my compressor died.

More progress when I get myself a new HVLP spray system.

Image
Last edited by theworkoffire on Mon Nov 15, 2010 3:01 pm, edited 5 times in total.

User avatar
PorkyPrimeCut
PAT. # 2.972.923
PAT. # 2.972.923
Posts: 24566
Joined: Tue Nov 28, 2006 7:46 am
Location: Leipzig
Contact:

Re: CFM JM - out of the ashes of the Buickmaster

Post by PorkyPrimeCut » Sun Oct 10, 2010 3:26 pm

Cool. I'm just gonna pop out & buy some popcorn.

:)
You think you can't, you wish you could, I know you can, I wish you would. Slip inside this house as you pass by.

User avatar
Mecler
PAT. # 2.972.923
PAT. # 2.972.923
Posts: 432
Joined: Sat Jun 12, 2010 4:41 pm
Location: Chicago

Re: CFM JM - out of the ashes of the Buickmaster

Post by Mecler » Sun Oct 10, 2010 3:55 pm

Nice, I can't wait. That mockup looks so tasty.
Burn the South.

User avatar
ncarey13
PAT. # 2.972.923
PAT. # 2.972.923
Posts: 895
Joined: Thu May 28, 2009 1:19 pm
Location: Hattiesburg, MS

Re: CFM JM - out of the ashes of the Buickmaster

Post by ncarey13 » Sun Oct 10, 2010 4:16 pm

I can't wait to see the finished thing!
They don't advertise for killers in the newspaper. That was my profession. Ex-cop. Ex-blade runner. Ex-killer.

idiotbear

Re: CFM JM - out of the ashes of the Buickmaster

Post by idiotbear » Sun Oct 10, 2010 9:59 pm

Ah, Ben, I love your projects. Can't wait to see how this turns out.

User avatar
andrewdoeshair
PAT. # 2.972.923
PAT. # 2.972.923
Posts: 6808
Joined: Fri Oct 16, 2009 10:16 pm
Contact:

Re: CFM JM - out of the ashes of the Buickmaster

Post by andrewdoeshair » Sun Oct 10, 2010 10:11 pm

My dood, can you tell me a bit about your truss rod? I assume you use a curved channel? How accurate does the radius on that curve (I believe it's 147" or something HUGE) have to be? I want to start using traditional rods, but making a proper channel for them is an intimidating task to me...

PS: Can't wait to watch this thread progress!
If you wish to make an apple pie from scratch, you must first invent the universe. - Carl Sagan

User avatar
theworkoffire
PAT. # 2.972.923
PAT. # 2.972.923
Posts: 4143
Joined: Sun Sep 02, 2007 12:59 am
Location: Punching the future in the face, London
Contact:

Re: CFM JM - out of the ashes of the Buickmaster

Post by theworkoffire » Mon Oct 11, 2010 12:15 am

andrewdoeshair wrote:My dood, can you tell me a bit about your truss rod? I assume you use a curved channel? How accurate does the radius on that curve (I believe it's 147" or something HUGE) have to be? I want to start using traditional rods, but making a proper channel for them is an intimidating task to me...

PS: Can't wait to watch this thread progress!
I'm absolutely no expert on single rods, and I can't find any pics of the jig I used for this - I can take some later if you like. The channel drops about 7mm in the middle, so I think it's about 8mm deep at the ends, 15mm deep in the middle. The router just runs on curved rails that I cut with a bent guide and a router I think. It was all very ad-hoc since it's the first one I did like this - all my others have been double-rods.

User avatar
the older brother
PAT. # 2.972.923
PAT. # 2.972.923
Posts: 10693
Joined: Wed Aug 29, 2007 12:12 pm
Location: Gothenburg, Sweden.
Contact:

Re: CFM JM - out of the ashes of the Buickmaster

Post by the older brother » Mon Oct 11, 2010 3:00 am

Great work, Ben.

Andrew: I made a single rod jig a while back - I'll see if I got the radius on the channel left somewhere.....

I did the calculation of the radius in my CAD program at work, by simply drawing it up with measurements of depths at nut end/lowest(aprox 6th/7th fret) and heel end and then drawing a radius that goes through all three points. The depths I got from Paul, so I guess it is pretty close to correct, if not spot on.

:)
Someone knows where I can find the nearest woodchipper to throw my pieces of junk into?

User avatar
the older brother
PAT. # 2.972.923
PAT. # 2.972.923
Posts: 10693
Joined: Wed Aug 29, 2007 12:12 pm
Location: Gothenburg, Sweden.
Contact:

Re: CFM JM - out of the ashes of the Buickmaster

Post by the older brother » Mon Oct 11, 2010 3:25 am

I seem to have lost the drawing/model when changing hard drive on my CAD-machine, but I'm drawing it up again at the moment....
Someone knows where I can find the nearest woodchipper to throw my pieces of junk into?

User avatar
the older brother
PAT. # 2.972.923
PAT. # 2.972.923
Posts: 10693
Joined: Wed Aug 29, 2007 12:12 pm
Location: Gothenburg, Sweden.
Contact:

Re: CFM JM - out of the ashes of the Buickmaster

Post by the older brother » Mon Oct 11, 2010 3:39 am

OK

the measurements I got on depth/length of a traditional truss channel is:
Length: 15" (25,5" scale neck)
Depth at nut/heel: 9/32"
Depth at middle (somewhere around 6th/7th fret): 9/16"

This gives a channel radius of: 100,15" or 2544 mm

Hope I got it right (someone should check the figures just in case).

:)
Someone knows where I can find the nearest woodchipper to throw my pieces of junk into?

User avatar
Maxivorarcher
PAT PEND
PAT PEND
Posts: 37
Joined: Thu Dec 10, 2009 2:22 am

Re: CFM JM - out of the ashes of the Buickmaster

Post by Maxivorarcher » Mon Oct 11, 2010 3:59 am

theworkoffire, excellent build again, where do you get your wood from?

User avatar
theworkoffire
PAT. # 2.972.923
PAT. # 2.972.923
Posts: 4143
Joined: Sun Sep 02, 2007 12:59 am
Location: Punching the future in the face, London
Contact:

Re: CFM JM - out of the ashes of the Buickmaster

Post by theworkoffire » Mon Oct 11, 2010 4:14 am

Maxivorarcher wrote:theworkoffire, excellent build again, where do you get your wood from?
I tend to use Tonetech for most of it.

User avatar
chelsea
PAT. # 2.972.923
PAT. # 2.972.923
Posts: 130
Joined: Sun Jul 11, 2010 6:43 am
Location: Los Angeles

Re: CFM JM - out of the ashes of the Buickmaster

Post by chelsea » Tue Oct 12, 2010 1:07 am

where did you get the green paint?
:jacked:

User avatar
ludobag1
PAT. # 2.972.923
PAT. # 2.972.923
Posts: 2565
Joined: Sun Nov 23, 2008 4:28 pm
Location: france

Re: CFM JM - out of the ashes of the Buickmaster

Post by ludobag1 » Wed Oct 13, 2010 12:22 pm

:derp: the buickmaster :o ??? >:(
but i think it will be most nicer after ;)
you like paint ;D i have a body for you :whistle:
:blush:
:D

User avatar
theworkoffire
PAT. # 2.972.923
PAT. # 2.972.923
Posts: 4143
Joined: Sun Sep 02, 2007 12:59 am
Location: Punching the future in the face, London
Contact:

Re: CFM JM - out of the ashes of the Buickmaster

Post by theworkoffire » Thu Oct 21, 2010 8:17 am

I had a couple of spots in the corners where the horns blend into the neck pocket that needed to be re-sanded and primed, and while I was wet-sanding the primer with 800 ready for the colour coat I realised I'd forgotten to square off the back of the trem cavity, so did that:

Image

Then started with the charcoal frost aerosol. Marlinburst anyone?

Image

This is the body after a full can of the charcoal:

Image

I've been experimenting on the headstock, and the colour is way darker than I want - a yellowed topcoat does nothing whatsoever. After that can went on the body I decided to go off-menu slightly:

Image

I emptied the other can of charcoal frost I had (don't try this at home, kids) and mixed in a little white primer (the only white I had), some of the leaf green I bought for the MOTORIK II, and a whole load of amber tinted clear. You can see here the original blueish CFM on the right, and the new, faded, yellowed version on the left. Didn't have time to shoot any - I need to put a finer needle on my spray gun first, but it's pretty close to what I'm after. I'll be able to tweak it tomorrow after the first coat.

Image

Post Reply