I was going to build the neck from a laminate of carbon fiber and epoxy, plus some kind of fancy tone wood - initially, I was thinking mahogany. Then I checked out the price of mahogany and settled on basswood. Basswood? That's for making guitar bodies! Well, please consider a few things:
- It's cheap - I got it from National Balsa Wood Company; here is the page for 36" long basswood sheets; mine are 1/16" x 4"
- I just read yesterday that Parkers have composite-wrapped basswood necks, and people seem to like those alright
- There's a good chance I'll mess up and have to try again, and like I said, it's cheap
Next, after I checked the price of carbon fiber cloth ($30+/yard) I decided to go with fiberglass. Here's why:
- It's cheap - I got it for about $7/yard from US Composites; here is the page for fiberglass cloth; mine is the 8.9oz S-glass, which is an upgrade from the "regular
- There's a good chance I'll mess up and have to try again, and like I said, it's cheap
In the picture of the fiberglass, from left to right is the 635 epoxy, the medium duration hardener, a little jar of blue dye (my idea is to stain the neck blue, so maybe this will help tone down the epoxy stripes), some measuring cups, and the fiberglass itself - 3 yards of it.
Here's my parts list so far, along with cost:
Basswood from National Balsa:
Code | Item | Qty | Price | Total |
116436B | 1/16 x 4 x 36 basswood sheets | 16 | $1.76 | $28.16 |
Fiberglass and epoxy from US Composites:
EPOX-635313 Medium 635 1/2 gallon, 21.3oz $34.25 FG-6781-38 8.9oz S Glass - Satin Weave Thickness: 0.0097" 4 yards @ 13.95/yd TRA - PB001 1oz transparent blue tint (< .25oz/gallon) 5.95 CON-C08 25x 8oz graduated plastic cups 5.5
Total: I'm about $130 into this thing already. Wow.
NEXT: A "heat box" to cure the laminate!
Looks potentially messy. :)
ReplyDeleteLike any start up, there's going to be initial investment costs (equipment and materials). These can be recouped over time and production. When we (you, Bob and I) started homebrewing, there was all that equipment we had to buy. But you buy it once and you're done. You just have to buy the ingredients with each batch. The same should apply here. Except maybe your consumption rate on epoxy will be low enough to spread over a few guitars rather than just one. Hopefully.
We'll see about the epoxy very shortly. A rule of thumb I've heard is that you use 50% epoxy and 50% fabric by weight; if I'm using two layers of 8.9oz glass cloth between each sheet, then somebody who has intellectual discipline could calculate roughly how much epoxy I'm actually going to go through.
ReplyDeleteThat person is not me.
I've heard a rule of thumb that the epoxy should be half the composite by weight. Given 8.9oz glass cloth at two thicknesses per layer, a intellectually motivated person could probably calculate the epoxy usage for this project, assuming I can apply it correctly.
ReplyDeleteI guess you're going to find out the hard way. :)
ReplyDelete