RE: Luthiers Share Tool Ideas (Full Version)

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El Burdo -> RE: Luthiers Share Tool Ideas (Jul. 7 2013 11:48:34)

quote:

That's a really clever idea. You've given me a use for an otherwise useless sharpening guide.

Thanks John. Tbh I do use it for sharpening planes etc. At the moment it does seem to work better than my clenched arm/moving torso method. This just suddenly occurred to me.



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constructordeguitarras -> RE: Luthiers Share Tool Ideas (Jul. 7 2013 13:09:46)

Lately I have been using some tools that are so ridiculously simple that they don't warrant photos. I have found that to trim things to a straight line--for example after I have bandsawn the long edges of a fingerboard close to the pencil lines--the fastest and easiest way to do it is to clamp a sufficiently long, 3"-wide, piece of 3/4" MDF to the line with spring clamps, place it in a vise, and use the wide, square edge of the MDF to rest part of the block plane on while I plane. This helps me get the edge of the FB both straight and square really fast. I do the same thing with a shorter length of MDF for the straight sections of my head crest and the sides of the head. I am always amazed that I did this much less efficiently before.



estebanana -> RE: Luthiers Share Tool Ideas (Jul. 7 2013 13:22:20)

quote:

Thanks John. Tbh I do use it for sharpening planes etc. At the moment it does seem to work better than my clenched arm/moving torso method. This just suddenly occurred to me.




That looks sharp. As in cool looking.



jshelton5040 -> RE: Luthiers Share Tool Ideas (Jul. 7 2013 14:04:23)

quote:

ORIGINAL: constructordeguitarras

for example after I have bandsawn the long edges of a fingerboard close to the pencil lines--the fastest and easiest way to do it is to clamp a sufficiently long, 3"-wide, piece of 3/4" MDF to the line with spring clamps, place it in a vise, and use the wide, square edge of the MDF to rest part of the block plane on while I plane. This helps me get the edge of the FB both straight and square really fast. I do the same thing with a shorter length of MDF for the straight sections of my head crest and the sides of the head. I am always amazed that I did this much less efficiently before.

I use a jointer to straighten the band sawn edges that way I can tip the fence a couple of degrees to make a slight bevel on the fingerboard edge. The disk sander does a great job straightening and squaring the edges of the head. You can also use a following router bit with a head template to rough out the head shape and edges. I've never had the nerve to use a plunge router to cut the tuner slots but I know some people do it successfully. Next time I make fingerboards I'll take some pictures of the setup I use for cutting the fret slots. It's a real time saver and extremely accurate. My friend Jim Stelzer sent me some pictures of a jig he made for drilling tie block string holes. I wish he'd post it here since it's a good idea. He has a real knack for invention.



jstelzer -> [Deleted] (Jul. 7 2013 22:56:11)

Post has been moved to the Recycle Bin at Jul. 7 2013 23:09:01



jstelzer -> RE: Luthiers Share Tool Ideas (Jul. 7 2013 23:24:11)

Thanks for the complement John.

Thought I would send you some photos of what I did a couple of weeks ago. Due to old age eyes and shakey hands I was considering having a machinist drill a template for aligning the string holes. Wasn't quite sure how I wanted to set it up ... so made a prototype using 1/4" plexi. Instead of holes I used my small bandsaw with a backstop to cut 6 slots to the same depth in the plexi. The saw kerf is a hair less than 1/16" so I had to carefully open up the slots a little. I then attached the template to a piece of 7/8" x 2/ 1/5" hardwood .. with the bottom of the slots approx. 2mm distance from the wood.

I use 2 spring clamps to hold the bridge to the wood piece and then drop it all the way down into my small vise. The spring clamps flatten out the arch in the bridge so that the string holes are the same distance from the bottom. My tie blocks are also ramped ..but the tie block side isn't used for positioning. I then use a small hand crank drill to drill pilot holes 1/4" deep and then finish the final depth on the drill press using the pilot holes for alignment. This crude prototype works well enough for me that I will probably skip having a machinist create a precision one.

Instead of plexi, 1/4" - 1/2" hardwood would work just as well and be easier to accurately position being as you could just glue it on.

I have switched to 1/16" string holes and in one photo I show my solution for reducing drill bit wobble on the drill press. It's a 3/32" OD .. 1/16" ID brass sleeve over a 1/16" drill bit fit into a #6 screw pilot. The brass tubing came from a Hobby/Model Airplane store. If you try this, make sure that the #6 screw pilot has the round shaft and not the quick change hex shaft. The round shaft lines up easier and straighter in the chuck.

My apologies for having to delete the first post - I'm having a terrible time editing photos in windows 7.

Jim in La Pine





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constructordeguitarras -> RE: Luthiers Share Tool Ideas (Jul. 7 2013 23:24:43)

I used to use a jointer, but this way is better for me. It looks like your bandsaw cuts very straight lines. Mine only so, so. When I cut the scarf joint as you do on the bandsaw--with almost the same jig--I have to hand plane the joint before glue up. Apparently you don't. Using the jointer to plane to a line means I have to keep lifiting the workpiece up to examine the line. With my MDF shelf clamped to it instead I don't have to keep lifting it up; it is already where I can see it. I make the bevel with a file as I file the fret ends.

I like to use routers as little as possible; the noise and dust are unpleasant to me, and they don't make a very clean straight line. Good for binding and purfling channels though. I don't like routed tuner slots; they don't seem handmade.



jshelton5040 -> RE: Luthiers Share Tool Ideas (Jul. 7 2013 23:48:56)

quote:

ORIGINAL: constructordeguitarras
I like to use routers as little as possible; the noise and dust are unpleasant to me, and they don't make a very clean straight line. Good for binding and purfling channels though. I don't like routed tuner slots; they don't seem handmade.

I pretty much agree with you Ethan. I suggested the template and following router as one way but I don't use it myself. I guess I'm old fashioned. It's funny how you get used to one way of doing things because that's the way you've always done it then one day discover there's a much better way and everyone else has be doing it for years.[:D]



Armando -> RE: Luthiers Share Tool Ideas (Jul. 8 2013 20:54:12)

Hi friends

After i spoiled a guitar because i didn't had the appropriate tool to clamp it, i finally decided to build me this clamping vise as used at the Romanillos guitar making course.

Here it is. Works great!












Possibly i'll build a few more pieces of this vise, so if anybody is interested in one of these, please let me know. The vise is made of pearwood and maple. The inner sides of the clamp features a protective layer of cork.

Best regards

Armando

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jshelton5040 -> RE: Luthiers Share Tool Ideas (Jul. 8 2013 22:21:12)

Nice work Armando. The tolerances must be really close on those ways to keep the jaws from binding.



Stephen Eden -> RE: Luthiers Share Tool Ideas (Jul. 9 2013 12:25:06)

Well with all this talk about routing head slots I thought I would share my simple yet effect guide with you. The first pic shows it set up using a pretty powerful router with a flush cut router bit setup. It has dust extraction and is actually so clean I no longer need to use a dust mask for this job. Ear defenders are still a must.

The head and neck are held in place with a single wedge that conforms to the usual shape of the head. The same wedge is used for my machine head hole drilling jig!

The second picture just shows how simple a set up it is.

Oh yeah to use the jig almost care free make you drill a hole for the router. so you don't need to plunge through the wood using the router. :)





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jshelton5040 -> RE: Luthiers Share Tool Ideas (Jul. 9 2013 14:24:29)

I like it. I think I'll definitely copy your idea. Cutting those slots is a needlessly time consuming task when I have all the tools needed to do it your way.



constructordeguitarras -> RE: Luthiers Share Tool Ideas (Jul. 9 2013 16:06:59)

I agree with John: It is very nice. I also happen to have the same plunge router--though I haven't used it for years. Could you show us a picture of the inside of the routed slots?



estebanana -> RE: Luthiers Share Tool Ideas (Jul. 10 2013 1:53:37)

That's good Eden, one of things I don't like about routing in the shop is the how it broadcasts wood shrapnel and dust everywhere.

I use the router for cutting binding channel and rosette channel, wish I could figure out away to extract the dust, but I think the vacuum hose would get in the way of router mobility.



estebanana -> RE: Luthiers Share Tool Ideas (Jul. 10 2013 6:45:10)

Here is my a latest tool. A dehumidi assembly room. It is made of plastic vapor barrier, and 2 x4 framed on two sides. I found this cheap twin wall plastic and fastened it to the side to help prevent punctures around tools and my general klutziness.

I put a compressor dehumidfier inside and it goes down to 30% RH in 90 minutes. The rest of the shop hovers between 45% and 65% RH depending on how much I run the AC.



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Stephen Eden -> RE: Luthiers Share Tool Ideas (Jul. 10 2013 10:04:45)

Here is a pic of the slots. It is very usually very clean cut depending on the age of the router bit of course. The bit I used for this one is about a year old and has cut about 30 necks worth of slots. I find the best way to get the cleanest slot is to run the router down the center without touching the sides, to take the bulk of the material, then go around the jig clock wise twice and stop.



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constructordeguitarras -> RE: Luthiers Share Tool Ideas (Jul. 10 2013 13:16:37)

Thanks, Stephen, they look beautiful. I'm taking another look at your jig....



Stephen Eden -> RE: Luthiers Share Tool Ideas (Jul. 10 2013 13:30:11)

No Problem, i'm sure you can easily replicate it but if you need any help understanding it let me know. I can try and draw up a plan for it with explanations as to what is it what and why it happens to be.



constructordeguitarras -> RE: Luthiers Share Tool Ideas (Jul. 10 2013 13:53:29)

How did you make the perfect slot in the plastic?



Stephen Eden -> RE: Luthiers Share Tool Ideas (Jul. 10 2013 14:08:09)

Ah I used a 16mm(or what ever size your slots are) router bit on a table with a fence. First I marked out both ends and cut out the bulk by hand to make it easier then went for it. Looking back Perhaps I could have cut it into wood first then use that to cut it into the plastic. In a trial run on a spare pit of plastic it melted!



constructordeguitarras -> RE: Luthiers Share Tool Ideas (Jul. 10 2013 14:15:20)

Thanks, good ideas.



Stephen Eden -> RE: Luthiers Share Tool Ideas (Jul. 12 2013 9:59:16)

Here is the Bridge hole drilling jig I have. It is set up to the same width as my tie block so its a matter of clamping it on setting up the drill press and going for it. Apart from one more jig for the machine head holes, that's all of my jigs.



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estebanana -> RE: Luthiers Share Tool Ideas (Sep. 12 2013 13:18:35)

What is it?



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Wayne Brown -> RE: Luthiers Share Tool Ideas (Sep. 12 2013 13:38:59)

It's a Mousetrap!
Or maybe it's a thickness gauge? (for a cello)



paul.troutfisher -> RE: Luthiers Share Tool Ideas (Sep. 12 2013 16:11:17)

ear piercer



constructordeguitarras -> RE: Luthiers Share Tool Ideas (Sep. 12 2013 16:32:04)

Looks like a homemade deep-reach thickness gauge perhaps.



Jeff Highland -> RE: Luthiers Share Tool Ideas (Sep. 12 2013 20:35:45)

Scratch gauge for thicknessing



Stephen Eden -> RE: Luthiers Share Tool Ideas (Sep. 13 2013 9:39:19)

I will will go with some kind of marking/ deph guage combo too. I was also thinking along the lines of some kind of torture device too but had to stop as it sent shivers up my spine.



koenie17 -> RE: Luthiers Share Tool Ideas (Sep. 13 2013 13:39:15)

Thickness gauge for chello or violin.



FredGuitarraOle -> RE: Luthiers Share Tool Ideas (Sep. 13 2013 13:57:05)

quote:

ORIGINAL: paul.troutfisher

ear piercer

I thought that too.[:D]



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