Thursday, May 28, 2009

I have heard the Astro Jet!

So after work yesterday I stopped by a couple local music stores that are more or less on the way home and got a Switchcraft L switch, three WD 500K pots (dunno who makes these, not Alpha and not CTS by the looks of them), a Switchcraft 1/4" mono jack and a pump bottle of Gibson Guitar Polish with polishing cloth. I really, really like this stuff! I went over the whole gutar twice with it before I did any further work. It looks remarkable.

From Astro Jet Work 2


The last major chore was cutting a new nut. I have to do this all by hand, as I don't have a belt sander or band saw. I do have a nice Zona saw and a large selection of files, however, so it takes a while longer, but usually goes well. I have heard some repair shops refuse to do new a nut unless it's part of a larger package of work, these days. I can fully understand. I know I've been quoted $50 for a new nut before and while that seems reasonable, if that's all I did for an 8 hour day, I think at best I might be able to get four done....if all went very well.

From Astro Jet Work 2


I made mine from Micarta. This is a synthetic material that, supposedly, is what Martin prefers to make their acoustic guitar nuts from. I have a couple aged bone blanks, but for this guitar I thought I'd use my little stock of Micarta pieces. Since the Astro Jet has a zero fret, the nut more or less serves as a side to side string guide anyway. The Micarta cuts and sands well and can be polished out to a nice shine, plus it matches the binding. As I get into the final setup, I will tweek it as necessary, but it's pretty much good to go right now.

From Astro Jet Work 2


Then I wanted to get the pickups fitted, My FilterTrons have screws that exit out the bottom of the pickup. The original SuperTrons in a Astro Jet have bar pole pieces that don't. So I had to make room for the screws in the routes. Cheap knock off Dremel to the rescue. I removed as little wood as I could and get by. Didn't take long. I had already done the bridge pup, though not quite as elegantly.

From Astro Jet Work 2


Pups installed! I need to get some new screws though. I only had two chrome and two black...not sure how hard it will be to find these locally, or if I'll need to order them online. I bought silver pickup rings and clear pickup rings. I tried the clear first and didn't care for the look on this guitar . So I installed silver, which looks OK to me. I may paint the clear ones black however and install them at a later date. Stock Astro Jet rings where black.

From Astro Jet Work 2


I'd never measured the fret board radius, though I suspected it was pretty flat. Turns out it's about 16". Like a shredder! Ha.

From Astro Jet Work 2


The last thing I did yesterday evening was install the output jack cup. It had been glued in at the factory back in `64 or so with a couple dabs of hide glue. To get those off and get it cleaned up, I just ran it under hot water in the sing for a while. Then a few minutes with a Olfa knife had it all cleaned up. I checked the hole in the body, cleaned out the crap that had accumulated in there and then used a brass hammer and a block of wood to drive it home. Then I cut a couple lengths of wire, soldered them to the Switchcraft jack and got it installed.

Got up early again (gonna need to catch up on sleep soon) and worked on it some more before coming to work. Hit it with some more of that cool Gibson polish, then got the Sperzel tuners put in. Then I trimmed the screws for the tension bar by about 1/8th inch and got it installed. Next I reassembled the Burns, cut a piece of wire for a string ground, and got it installed. I slipped the bridge in place and got an idea how much I was going to need to trim off the base for the pickguard to clear. Once I determined that, I made and cleaned up the cuts, strung the guitar up and connected the bridge pup to the output jack temporarily.

I wanted to get some tension on the neck for the day, but didn't want any pressure on the bridge unless I knew it was where it needed to be, lest it mar the still very fresh (and somewhat soft) lacquer finish. That's why I twisted the pickup and output jack wires together and have, thusly, heard the Astro Jet in it's almost completed form! I tuned it up and slid the bridge around till the intonation was correct and then played a couple tunes on it. Sounds more or less like it did when I mocked it up before undertaking the rebuild. A note on interest was the bridge. I bought it from Joel and Shanghai because I wanted to have a flat bridge base and a tuneomatic style bridge. I had a part number for the bridge used on the BillyBo, which has a flat top and Joel was the only guy who had that bridge and base in stock. Here's the thing, once I had the fore and aft placement of the bridge tweaked based on the low and high E strings, the intonation of all the strings is almost exactly spot on. I know this came off a BillyBo initially, and find it interesting the compensation is essentially identical.

From Astro Jet Work 2


So, not much left to do. Need to decide on the control layout and drill the appropriate holes in the pickguard, Then I need to try and remember to put some shielding (aluminum foil) on the underside, get the pots and switch installed and get everything soldered up. I'm hoping Radio Shack has a suitable .022mF capacitor in case I do not. I might also install a treble bleed on the volume controls. The srap buttons need to be put on, the set up tweaked and then.....

I've got my original pickguard template drawing here at work, which also has the outline of the control cavity on it. I brought dimensions of the pots and switch and knobs so I can do a mockup drawing and see where and how everything might fit together. I even have four knobs and pots, though I may only use three or perhaps two. Here are some pics I took this morning to give me some control visuals:

From Astro Jet Work 2


From Astro Jet Work 2

Wednesday, May 27, 2009

Ohhh...shiney!

I'll be tired later today because I stayed up last night and got up early this morning. Couldn't help myself. When I got home from work last night I still wasn't sure I wanted to put more clear on or start rubbing out the almost two cans I had on there. My goal in all of these refinishes is not a perfect finish, more of a mild relic. A guitar that somewhat reflects it's age and doesn't look plastic like and new. That's partly my own personal aesthetic choice and partly because I like to keep these finishes as thin as possible.

I'm not sure which of the trees that surround the condo give off the puffy white little balls this time every year, perhaps cotton wood?...but they where in full force yesterday. It's almost like a mini-blizzard when it happens. They pile up in drifts in the corners outside and the air is full of them floating around. Since I have to paint outside, their presence meant no painting yesterday. I decided to treat that as a omen and proceeded to sand out the paint.

I used mineral spirits for the lubricant (the "wet" part of wet sand). It works very well as I use the low odor stuff, it's got good lubricating properties and I don't have to worry about it getting into holes and swelling the wood. 3M's Imperial wet or dry (the good stuff) in 600, 800, 1200, 1500 then 2000 grits and a small art eraser as a sanding block.

I went slow, started with the neck and headstock, then moved to the body. Took till just short of midnight to get everything sanded out. But, by in large, I was very happy with how smooth it came out and that I only had one area of sand through about the size of the first joint of my little finger. I considered that a success!

So, this morning I got up a little early and got out my Titan 6" buffer I had bought a couple years ago at Auto Zone (something like $30), my bottles of Meguiars cleaner #1 and polisher #2 and started buffing. The little Titan makes short work of this step!

From Astro Jet Work 2


It took maybe an hour to get it where I wanted it more or less. I think I may get some of the Gibson guitar polish and work on it a bit more...not sure yet. Rumor has it it's good stuff for a lacquer finish and "even has a little bit of finish in it" what ever that means.

Here's a close up giving you an idea of the level of shine I like:

From Astro Jet Work 2


And a terrible overall...bad lighting this morning due to clouds....and a terrible photographer as well...

From Astro Jet Work 2


So, I stripped the tape off the fret board, cleaned up some adhesive residue and gave the ebony it's first coat of raw linseed oil. It was thirsty! I might give it another drink after work today, I'm not sure.

Still lots of work left to do, but the "hard" part is over. Perhaps if all goes well I can finish it for the weekend. I need to get three pots, a switch and maybe a capacitor to wrap up the electrics though, so I may need to make a trip to Sam Ash tonight or tomorrow...

Friday, May 22, 2009

So far, so good

Got another three coats of clear on after work. I put these on a bit heavier than the first three, but not what I would call super wet. It looks pretty rough right after you shoot, but the lacquer flows out some as it dries and starts smoothing fairly well. I inspected it again before I left for the weekend and it's getting nice and glossy.

From Astro Jet Work 2


I'm not sure how much more I will put on. I'm not going for a flawless finish or a super high gloss one like you might find on a factory fresh Gibson. I want relatively thin and moderately glossy. Yesterdays three coats was much of a second can of clear. That kind of freaks me out that it's taking so much paint. It is a big guitar, however, and I am getting a lot of waste given I'm using spray bombs. I figure I'll do another three coats (hopefully) next week and see where it stands. If I think I can buff/sand it out with that amount, I'll stop. I may also sand it out with some quality 400 (or 600) wet dry before I shoot those three coats. I'm going to contemplate that over the weekend. All in all I'm happy with how it's going so far.

I polished a bit more on the tension bar (looking good) and cut the other ear off the neck pup last night as well. Plus I went through my parts making sure I had my knobs, pickup rings and other parts in one place. Time and effort...that's pretty much all that's left...that and a three way switch and some pots and caps...

Thursday, May 21, 2009

Is that a light at tunnel's end?

Got three coats of clear on after work yesterday! Woot! Surprising to me, it took the better part of a whole can to do that...and I felt like I was putting on thin coats. I guess that means, with two other guitars that will be needing finish work, that I'm gonna have to go to Rockler for more clear sometime soon. At least they keep sending me coupons.

So far so good...little orange peeley, but that's not surprising. I'm gonna lay down another three tonight after work, then it will sit till next tuesday. At that point I might sand out with 400 grit...or not...in either case, I plan to do another two three coat sessions and see how it's looking. This Behlins' lacquer dries real fast!

From Astro Jet Work 2


That didn't take long to tack rag/wipe down with degreaser/tack rag again, then paint...so....I started in on some of the other tasks that need to be done. I cut one of the ears off the reissue Hi-Sens filtertron neck pup I got. For some reason they put those extensions on the base plates these days. Too wide for the routes in my Astro, so they must come off. I just razor saw them off (X-Acto) and file them down...not a big deal.

From Astro Jet Work 2


I also started polishing the tension bar parts my buddy Eric made for me. I asked him to leave them unpolished, as I wasn;t sure what way I wanted to go with them. I've decided I want a semi-polish on them. Not as shiney as stainless can get when fully polished...but somewhere in between where they where when I got them and super shiney new. Think used...petina...what ever...think relic if you want...I shall not be. I'm using my cheap knock-off Dremel, some buffing wheels, some toothpaste and the "jewler's rouge" that came with my heap knock-off Dremel. It's gonna take some time...but the round part is coming along seemingly well.

From Astro Jet Work 2



BTW...if you're reading this...ever....think about leaving a comment! Thanks!

Wednesday, May 20, 2009

No rain!

Finally, looks like good weather for the week so I can get some outdoor painting done. Last night I masked off the Gretsch inlay and the rest of the headstock and shot Dupli-Color gloss black lacquer on the face of the headstock. Later, after the paint dried for a while, I removed the inlay mask, and stripped the masking off everything else. I applied new masking to just the nut slot and fret board, so I'm ready to start applying clear coat. First coat tonight after work is the plan....I'll try to shoot a picture at some point...didn't shoot any last night.

Tuesday, May 19, 2009

Just a photo update

I unmasked the headstock this morning and shot a couple photos of the repaired Gretsch headstock inlay. Hopefully after work today I can get this masked off and the headstock shot gloss black. And if the weather holds I'll be able to strat shooting clear this week.

From Astro Jet work 1

Monday, May 18, 2009

And bringing it up to date...

Notice I'm switching to a new photo album for the refinishing process.

So last tuesday after work (we had band practice monday) I finished sanding on the inlay, and hand sanding to 220 grit in prep for grain filler. I got my little tin can of oil based grain filler out and stirred it thoroughly to get all the solids back in suspension. I made a couple inch wide scraper from a piece of 40 thou sheet plastic, donned a rubber glove and proceeded to fill the grain. I started with the neck and moved my way to the front of the body, then did the rear last. I'd run it in well with my fingers, applying it generously, let it sit for 15-20 minutes, then start scraping off the excess.

From Astro Jet Work 2


After it sat overnight, I sanded the entire surface with some 320 grit dry paper to knock the excess off and get it smooth enough for sand-sealer. I kind of expected to need two applications of grain filler, but really did not. The first seemed to do the job quite well. I used a brush, my lungs and a tack rag to get as much of the sanding ditrious off, then fashioned a hanger from a bit of heavy duty coat hanger and took it outside.

A generous wipe down with my DuPont paint prep solution degreased and cleaned it up pretty good, so I tack ragged it again and started applying sand-sealer. I'm using this stuff:

From Astro Jet Work 2


Although the can does not look like that anymore. Pick it up at Rockler here in Indy, usually using one of the weekly coupons they send out via e-mail every friday.

The first coat went OK, couple runs here and there, but a good base to work from. I let it sit overnight and all day, then sanded a bit and shot another coat on it wednesday night. Thursday after work I sat outside and used my 320 grit aluminum oxide paper to sand the whole thing down. It went well and I was happy enough with it, as well as got done early enough, I was able to clean it up well and shoot the color coats on everything before I lost sunlight. I used Stew Mac's ColorTone clear cherry for the color coats. It's got a nice Gibson heritage cherry sort of red and darkens up well with multiple coats. I applied three over the course of about a hour and a half. Only got one not too major sag on the back...certianly not bad enough to halt the refinishing.

From Astro Jet Work 2


Next step is get the Gretsch inlay masked off and shoot black on the headstock. Then remask the fret board so the binding edges are exposed and start applying clear gloss nitro. I have band practice tonight (monday) so I anticipate starting that process tuesday sometime. Only problem is it's gotten chili here again, so I don't know if it will be warm enough to paint outside....we shall see...