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I'm guessing this is the best place for this thread.

Just some drawings and measurements at the moment. For my double neck I realised that I'd have to make my own guitar case for it as I wouldn't be able to get one to fit. Originally the design was to make it out of wood and varnish it, but when I went for my work experience interview and found out I was going to design and make anything of my own choice over the two weeks, I thought about making one there. I'm doing it at Coates Engineering, who are a company who design and make high-specification machines and runs for the food industry. They have made machines for the likes of Cadbury's, Kraft, Nestle, Thorntons, Ginsters, Hollands and MANY more. I thought if I'm going to be making something I can't buy, I better make it last. So that's why I'm making it out of aluminium instead of wood. Also, I most probably won't have access to the type of equipment again. Here's my first three working drawings:

http://img.photobucket.com/albums/v200/Calum/FLIGHTCASEA.jpg

http://img.photobucket.com/albums/v200/Calum/FLIGHTCASEB.jpg

http://img.photobucket.com/albums/v200/Calum/FLIGHTCASEC.jpg

Big pictures, but they dont take long to load at all. I'll be doing another one tonight, and finishing off two of those (little things I've missed here and there)

Calum

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Transferred my working drawings onto the PC today and drew them on AutoCAD. I've printed out two issues of it already on A1, and I'll print out another tomorrow morning because I noticed some more things that I missed out/did wrong. Also, my stuff came today, along with lots of redundant wood screws :D I quite like the black hardware, and it's a bit more matt than it looks in the pictures. Now I've got to take them into work tomorrow with my calipers and ammend my drawing so it's all correct for when I go on the shopfloor on monday. Here are some pics anyway (I actually bothered to crop these!)

http://img.photobucket.com/albums/v200/Calum/PICT4270.jpg

http://img.photobucket.com/albums/v200/Calum/PICT4271.jpg

http://img.photobucket.com/albums/v200/Calum/PICT4273.jpg

http://img.photobucket.com/albums/v200/Calum/PICT4274.jpg

My carpet looks unusually pink considering it's a deep red....

Edited by Calum_Barrow
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You might want to considering rolling some beads along the length of the front and back of the case. Doing so will significantly stiffen the overall case and increase its impact resistance. Also, have you thought about what you're going to do with the corners of the case, since you have round amp corners on them? I wasn't quite able to figure out your plan for them from your drawing of the bottom cut out. I see only one option since it appears you've opted for 90 degree edges as opposed to more smooth, radiused edges. You'll probably have to chop just a tad off of the corners to get the caps to fit.

peace,

russ

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You might want to considering rolling some beads along the length of the front and back of the case. Doing so will significantly stiffen the overall case and increase its impact resistance. Also, have you thought about what you're going to do with the corners of the case, since you have round amp corners on them? I wasn't quite able to figure out your plan for them from your drawing of the bottom cut out. I see only one option since it appears you've opted for 90 degree edges as opposed to more smooth, radiused edges. You'll probably have to chop just a tad off of the corners to get the caps to fit.

peace,

russ

Yeah I completely forgot about the corners until yesterday. I'm simply cutting 45 degrees off the corner 12mm from each side. It's hard to explain without a diagram. when the sides are folded together, you will se a 12mm equilateral triangle shaped hole on each corner. I'll siimply cover those holes with the corners.

I had thought about extrusion or something, and I'll have plenty of aluminium sheet left to go at if I feel I need to but some round all the edges. I've had 2500x1250mm ordered, of which I'm going to be using 2470x715mm.

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It's not hard at all to imagine. An equilateral triangle is exactly what I was thinking. You didn't address the beads though. I really think you'd benefit from rolling maybe 3 concave beads on the front and 3 on the back. You wouldn't distort the shape of the metal at all by doing so. However, it would add a substantial amount of stiffness. I'd say a case with the beads rolled on it would be at least 2x stiffer and more impact resistant than one without them.

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Got the case back today and took some pics for you all. Ain't got the corners on yet as they didn't come, so when they arrive I'm going to nip back to my work placement and rivet them on. So here are some pics of it as it is at the moment.

Case:

http://img.photobucket.com/albums/v200/Calum/PICT4333.jpg

Back:

http://img.photobucket.com/albums/v200/Calum/PICT4339.jpg

Open:

http://img.photobucket.com/albums/v200/Calum/PICT4326.jpg

Open again. Pic taken with flash to give a more realistic colour, but i hate using the flash, so i only took this pic with the flash on.

http://img.photobucket.com/albums/v200/Calum/PICT4320.jpg

Lid off:

http://img.photobucket.com/albums/v200/Calum/PICT4330.jpg

All I need to do now is go to the builders' merchants and get some polystyrene sheets to fill it, and some fur to go on top of that.

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  • 10 months later...

Just realised I never posted any pics of this thing finished. I've started filling it with polystyrene sheets at the moment, and once I have got the 12 string neck of my double neck made I am going to cut out the shape of the guitar and start working on the interior of the case, such as the neck rest and a pocket inside and the like.

http://img.photobucket.com/albums/v200/Calum/PICT4493.jpg

It's being filled with polystyrene as I've said which will eventually be covered in black fur.

And I can't remember the weight, but it is around 20lb I think. With the guitar set to weigh around 10lb or so, that'll be about 30lb, but I'm not exactly going to be walking with it everyday. Having said that, I know when I finish I won't be able to get enough of this guitar, so it will probably go to school with me every day I take my guitar into school, and I won't trust leaving it in the music department (and of course they don't have any shelves big enough for a case that size!)

If I remember I will get some pics of my starting to fill the insides of the case with polystyrene (which I did some time ago but haven't taken any pictures yet)

Calum

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Ok, took some pics today, but I'll just show you this one. I started by filling underneath the return bend. This is nice and tight, so tight that when I pushed it in it broke in quite a few places, but this is fine. The idea now is to fill the middle bit with layers of polystrene sheet. It's better with layers as it is easier to cut out a shape of a guitar in one layer than try and rout it out of one lump or whatever. Placing the guitar in it at the moment, it is rather deep, so I should be able to get away with a full 1" layer at the top and bottom, and have cut out layers in between. Think I'll stick some cardboard over the polystyrene on the inside to give it a bit of protection from the inside, and also it might help on the lid where the tuners, bridges, switches, knobs etc. will press against it. It might help the lid "mould" to these features a little better. We'll see, cause I might well need to do some packing later to make it a nice snug fit (though the fur should help somewhat too).

http://img.photobucket.com/albums/v200/Calum/PC280010.jpg

Calum

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  • 4 months later...

Started fitting this to the guitar now that I have the second neck pocket routed and I know where the neck is going to sit.

http://img.photobucket.com/albums/v200/Calum/190.jpg

http://img.photobucket.com/albums/v200/Calum/192.jpg

Not much work left on this now apart from final shaping and extra padding in the lid. Might make a compartment in it too, and then it all needs covering in black fake fur.

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