Sunday, November 30, 2014

Project Update: Band Saw Out, Jointer In

Because I realized the Delta 16" band saw I had purchased did not quite provide the clearance to accommodate the wood I wanted to resaw, I decided it needed to go to a new, caring home; more specifically, one that is not mine. I posted it on Craigslist and it went to a dude just starting to put his shop together. We installed a blade, cut some wood, loaded it in his truck and it was gone. I emailed him the manual and the websites for the missing parts. Goodbye, old/new friend.


In its place, I now have a "new" Delta 6" jointer. I had sold my previous Delta jointer to Mark Roberts of Mark Roberts Guitars and Ukuleles. Mark is a great guy who builds beautiful instruments. Meeting Mark has been a wonderful experience - he's a jig wizard and master luthier and it's been an honor to visit his shop and learn from him. My esteem for Mark notwithstanding, as soon as I sold the jointer to him, I found I needed a jointer.

One of the reasons I sold Mark the jointer was that I wanted a larger, floor-stand model, one with a bigger bed for when I start work on the instrument soundboard and case. Of course, I can still use it to joint smaller pieces, yet it was the larger pieces of the harpsichord that prompted me to seek out a floor model. I ended up finding a Delta (37-280) 6" jointer on a nice stand for $80 on Craigslist. The sale of the 16" band saw covered me on this one.


This photo above is of the underside of the machine after I've schlepped it onto my workbench. I took it off the stand at the place where I bought it so I could load it into my Kia Rio for transport. You'd be amazed what you can fit into one of those little buggers. The guy I purchased it from had been keeping it in a non-weatherized shop, so the bed was completely rusted. It was superficial, but it still amazes me how some guys treat their tools and machines. In this case, it was to my benefit - this jointer would have cost me one heckuva lot more had it been in decent shape. Here's a shot of the bed as I started cleaning it up with a wire brush wheel on my cordless drill.


I was able to get most of the rust off, yet there still remains some oxidation that I will remove with 320-grit sandpaper once I get it mounted back onto the stand.  Here's a shot of the bed after a couple of hours of grinding away.


Night and day, eh? I hit it with some 3-in-1 oil so it wouldn't start oxydizing again while I work on the stand. Speaking of the stand, it's a rusted mess, as well.


You can see where I hit the bolt heads with the drill brush. I found an $80 bench grinder for $30 on Craigslist, still in the box and ready to go. I'm going to pick it up this afternoon and disassemble the stand so I can grind away on it using a wire brush wheel. Doing it by hand using the drill would prove to be too much for my delicate little fingies. Besides, I've had occasion to use a grinder in the last couple of months, yet held off on the purchase. It's time.

Once I get the stand brushed down, I'll repaint it with black Rustoleum, remount the jointer and call it good. This is a slight diversion from progress on the instrument, but it needs to be done and I don't have the luxury of assigning it to one of my apprentices, so it gets completed during evening and weekend shop time. Ah, the rigors of working alone (I'll take it over working with others any day).

Until next time...

Wednesday, November 26, 2014

Project Update: A Better Way

As I'm working on filing and sanding the natural key tops, it occurs to me there must be a better way to go about this for two reasons: 1) Doing it by hand is an incredibly organic (i.e., non-replicable) process resulting in each key having its own, unique characteristics, which sounds far better than it actually is and 2) It's killing my delicate little fingies and hands. Since I've started the process, I can only complete two or three per day because of the chronic pain issues caused by my CTS surgery. It's not unbearable, I just don't look forward to causing myself pain every night.


I'm wondering if it wouldn't be possible to make the transition cut between the head and tail and also at the second score line so that I ended up with three pieces to glue. I could then use a finish router to trim the corners of the heads. I could easily build a router table that would accommodate my little finish router and it would be easy enough to run the head strips through the router even before cutting them for length. This is probably a nutty idea, but one I'm willing to consider.

The trouble with this approach is that I'm back to making astonishingly small cuts with a very fast moving blade. If I go this route, I would consider purchasing a tiny table saw (4" blade) intended to cut stained glass to make those cuts. If you have any experience with this sort of thing, please comment below. We can assume this is a crazy idea, so you need not remark about that. If you have a creative solution or two, I'm all ears. In the meantime, back to filing and sanding...filing and sanding...

Until next time...

Sunday, November 23, 2014

Day 61: Crisis Averted

It turns out only two of the natural key top heads were off by around one millimeter on the end where they butt up against the tails. I simply trimmed them on the band saw and all is well. This was a close call, one that I will never forget, especially the lesson that I need to review Mr. Miller's eBook Most Excellent on a regular basis before proceeding - with anything. Once I determined things were okay, I went ahead and glued up the remaining natural key top tails.


The sharp tops are not yet completed, though it may look like it. I still need to cut, trim and glue up the quarter sawn red oak for them. The veneers are only 1/16" thick; this will make it oddly both easier and more difficult to get them the right size. Fortunately, all of the sharps, including their tops, are exactly the same size, so I can set up a system and power through them in an assembly line fashion.

Once I completed the tail glue ups, I went ahead and notched all of the heads.


All of the drama I introduced in a previous post about notching with my new, razor sharp knife was rather silly. The notches are designed to protect the second score line from the file and should be neither too deep nor too long. One of the Facebook page followers suggested that I use a file with a flat edge to file down the corners of the naturals. I don't have a bench grinder to easily accomplish this with, so guess what my next purchase will be.

On the few I did file, I decided to use a larger raspish file, a medium, and then a fine file to complete them. Unfortunately, I nicked the second score line on a couple, so I'm stopping production until I can pick up a bench grinder to smooth out one side of the files. It's just too much work to ruin keys at this point, especially when the fix is so easy.

After filing down the edges, I used 220 and 400 grain sandpaper to smooth them up and finished buffing them with a heavy duty Scotch-Brite pad, my new favorite tool. As you can see in the photo below, they look pretty good, even without any finish on them.


I found a bench grinder on Craigslist a few miles north of the shop and the guy only wants $25 (I'm betting he'll take $20) for it. Once I get it set up, I'll be back in business and posting my progress here.

Until then...

Friday, November 21, 2014

Day 60: Uh Oh...

I've been gluing natural key top heads with abandon, never once using a straight edge to line them all up. It's been a great experience and I've really felt like I've made some serious progress on the project.


Big mistake.

Tonight, I get to see how badly they're misaligned. If they are, and I suspect they are, I will need to come up with a strategy for realigning them, if that's even possible. Hey, it's just wood, right? This is one of those times I question what the heck I'm thinking and quitting is certainly easier than fixing a stupid, stupid oversight. All I needed to do was sit down with Mr. Miller's eBook Most Excellent and review his directions before taking any action. In fact, I resolved to do this early on and have not done it once during the course of the project. In this case, hindsight ain't all it's cracked up to be.

In the meantime, I cut and shaped some quarter sawn red oak laminate that I rejected from the initial batch of cuts. I just wanted to see if I could get it cut and trimmed up to fit on the top of a sharp. As you can see, I did this, but no glue was involved and I will diligently review Mr. Miller's directions before proceeding with the real thing.


I also completed the miter box and it works great - the cuts are finer and smoother. At least I'm happy with that. One thing I would like to do is work on designing more jigs, as well as a sled for the table saw. I've mentioned the sled in a previous post. I think it's time. A sled will allow me to make the tiny cuts with a maximum of safety, which is nice.


I was considering indulging in a pleasant diversion - building a Baroque guitar during this project, but I may reconsider because I feel I need to focus on this instrument. I clearly need to be more thorough in my approach. Regardless, here's a photo of the plan for the guitar.


As you can see, it's an odd little creature. It will also be a LOT of work. The ebony/bone pattern work will take a lot of time. I was considering it a chance/reason to build the sled for cutting the minuscule laminates, but, again, I'm thinking now that my focus should be on the harpsichord. This latest screwup with the natural key heads is a biggie and I may have to start the keyboard over. Heck, it only took me six months to get this far, what's another six to nine months, right?

Until next time...

Wednesday, November 19, 2014

Day 59: Sharp Key Top Covers

I was able to get enough quarter sawn red oak cut last night to, I believe, cover all of the sharp key tops. As you will recall, I'm building this instrument in the Craftsman/Arts & Crafts/Mission style using quarter sawn oak when and where appropriate. This is one of those places where and when it's appropriate. It also obviates the need for me to use bone, as is the custom these days, especially since ivory imports to the U.S. have been curtailed.

As with the arcades on the front of the naturals, I cut my own quarter sawn oak pieces for the sharp covers. Rather than purchase the wood from a specialty, exotic woods store for $9/board ft. or more, I simply used some red oak I purchased from Lowe's. The piece is flat sawn, yet, as a consequence, the sides are nicely quarter sawn and cost me a fraction of what I would pay for wood from a place like Woodrafters or Gilmer Wood Company. I think the entire board cost me something like $12 for a 3/4" x 6" x 8' piece, rather than $36 elsewhere.


The laminates are only 1/16" thick, so cutting them on a full-sized table saw is a bit tricky. The key is to set the feather board (the blue thing in the photo above) at 1/16" from the saw blade and move the rip fence closer to the blade as I cut the slices from the board, and to also use the zero clearance insert (the red thing in the photo above). Easy peasy, but still a little scary given the small tolerances. I'm thankful every time I use the table saw for my GRR-Ripper from MicroJig (the yellow thing in the photo above). Safety first at Tortuga Ancient Instruments!


I mentioned in an earlier post that I was putting together a custom miter box that would allow me to use one of my smaller pull saws to cut the natural key tops. The plastic miter box was okay, but it required me to use a saw that was pretty rough on the laminate cuts as I trimmed them down. With this new box, I can get finer cuts that will sand nicely and create a final product of higher quality.


The next step is to cut the remaining natural key tops using the new miter box so I can get this keyboard wrapped up - it's been six months already!!

Until next time...

Thursday, November 13, 2014

Day 58: Preparing the Sharps

I was able to complete the buffing of the final sharps last night. I did this while sitting on the couch watching My Big, Fat Greek Wedding. I've decided to start using Windex as a fix-all in the shop. In fact, along with the buffing, I took the protective tape off of the sharp tops and keysticks using Windex.

Yes, I'm kidding.


As you can see, they're ready for the quarter sawn red oak tops. I will be cutting these tiny laminates on the table saw using a feather board, a shimmed zero-clearance throat (more on this later) and a heap of patience; they must be no more than 1/16" thick and are astonishingly small in general. It should prove to be another interesting experience, indeed.

I continue to glue up the natural key top tails and I've started the construction of a little miter box that I can use for slicing and dicing the smaller pieces required by future keyboard work. I'm not completely done with the natural key top heads because I decided to cut three of them off for a variety of screwup-related reasons. I'll get at these this weekend once I can get back into the shop and  the miter box is completed (personal reasons prevent it at this time).

Until next time...

Wednesday, November 12, 2014

Day 57: Happy Birthday to Me!

Yes, yesterday, November 11 - Veteran's Day - was my birthday. Frankly, I've stopped counting and/or acknowledging how many years I've been on the planet, so it's a bigger deal to friends and family than it is to me. More importantly, I was able to spend some time in the shop last night and finished gluing up all of the natural key top heads and even started a few tails.


It's coming along slowly but surely. Because of this, I've decided to name my company Tortuga Ancient Instruments. Regardless of my speed, I'm happy with my progress so far, including the two naturals I've filed and sanded (they're the ones with the tails glued on in the photo above); this bodes well for the remaining keys. I'm planning to get more of the tails glued up tonight so I can start filing and sanding in earnest. I also nearly have the buffing of the sharps completed - just four more to go and I'm there.

Until next time...

P.S. Watch for a new project on the horizon - a Baroque guitar modeled on an instrument that may have been owned by Marie Antoinette. Apparently, she let them eat cake AND play guitar. There is no historical evidence, though, that she let them do both at the same time.