DjangoBooks.com
Welcome to our Community!
Categories
- 19.8K All Categories
- 1.1K General
- 448 Welcome
- 57 Archtop Eddy's Corner
- 135 CD, DVD, and Concert Reviews
- 380 FAQ
- 26 Gypsy Jazz Italia
- 22 Photos
- 199 Gypsy Picking
- 21 Unaccompanied Django
- 15 Pearl Django Play-Along Vol.1
- 16 Gypsy Fire
- 40 Gypsy Rhythm
- 1.3K Gypsy Jazz University - Get Educated
- 126 Gypsy Jazz 101
- 208 Repertoire
- 205 History
- 694 Technique
- 46 Licks and Patterns
- 6 Daniel Givone Manouche Guitare Method Users Group
- 20 Eddie Lang Club
- 1.2K Gypsy Jazz Gear
- 735 Guitars, Strings, Picks, Amps, Pickups and Other Accessories
- 420 Classifieds
- 43 Recording
- 62 Other Instruments
- 18 Violin
- 5 Mandolin
- 22 Accordion
- 7 Bass
- 10 Woodwinds
- 314 Gypsy Jazz Events
- 136 North America
- 95 Europe
- 83 International
In this Discussion
Who's Online (3)
-
10:15AM -
10:15AM -
10:15AM
Today's Birthdays
Comments
I keep making these videos, maybe they will remind me how to do things the next time I do them...
Vacuum bagging
Locating Braces:
Speaking of Blue Guitars....Ari at AJL is making this Gypsy Fire for me based on the color of a Gibson ES-137. I should have it in the next couple of weeks.
Couple updates, I'm still re-engineering the way I'm doing pretty much everything based on things I wanted to change on my past guitars. Progress is slow but I'm pretty confident that the things I'm working on are going to make a superior instrument.
CNC Cut Braces
New Molds
Vacuum Bagging braces (hopefully)
Thanks for the vid. How do you thickness them? By hand or do you have a wide thickness sander?
Once I had $1500, now I have this. Pretty much essential for me. I have been doing some thicknessing with my CNC but it is super easy to destroy a top on it. Fast though.
ok I actually vacuum bagged some braces. It ended up working pretty well. Super PITA and I'm not sure I will keep doing it but I also really like the quality it gives.
Kind of a long video, I queued it up to the exciting part.
Do you have to leave the air on the whole few hours you are waiting for the glue to dry? Is that because of the air valve mount that you made?
Yeah the pump stays on. It is designed to stay on for long periods but it freaks me out a bit. I have some fire OCD.
I think it's pretty hard to get a perfect vacuum like this. But I'm pretty new to it. Usually you either run your pump continuously or you have a sort of bladder buffer that stores up some extra vacuum and when that gets depleted the pump comes back on. But I don't think you just get a perfect vacuum and shut it off. This also demands quite a bit of pressure.
The crazy thing about the vacuum which I don't totally understand is it's actually the weight of the atmosphere that's doing the clamping.
Magic. Kind of like magnets. How do those things work???
But seriously. My guitars are glued with the power of the atmosphere.
The crazy thing about the vacuum which I don't totally understand is it's actually the weight of the atmosphere that's doing the clamping.
May sound crazy, but that is similar to the pressure you feel in your ears when you descend underwater. For every 33 ft underwater you go, you increase the pressure by 1 atmosphere. So 33 ft underwater is twice the pressure you feel at sea level. 66 ft down is 3 atmospheres, etc. That's why most people get "bent" in that last 33 ft and why divers often do a safety stop there. To let some of the pressure off-gas out of your tissue before you halve your perceived pressure by surfacing.
You see the opposite of this when you looked at a sealed potato chip bag in an airplane cabin. The pressure inside the bag is set at ~1 atm (sea level). As you climb, the pressure of the air decreases outside the bag so the pressure inside is greater. It pushes out against the flexible bag and looks like it is going to explode.
And while that is all science, yes, it is still really crazy to think that what is left is the "weight" of that pressure differential pushing/pulling down on that "flimsy" piece of plastic bag.