Zilch's AK Design Collaborative - Econowave Speaker
- Thread starter Zilch
- Start date
skywave-rider
Slumming in Akihabara
Hahahahahahahahahahahahahahahahahahah!!!!!OMG!!!Hahaha.
U know I love that, Zilch....Oh Man! Shedding tears here......
Yeah!!!
Ironically, they're the best-sounding E'Waves I've ever built, and will likely become my mains. :yes:Zilch, Damn you got mad SKILZZZ. Now step away from the JigSaw!
At the time, you were worried about not having the requisite skill, so I set the bar low. Result: the dumpster bin masterpiece shown in your avatar. If I'd have made you send them to me, they'd be proudly displayed in my living room right now. :thmbsp:U know I love that, Zilch....Oh Man! Shedding tears here......
Use -6 dB as the lower limit of usable bass in making comparisons. By -10 dB, there's none worth counting, for all intents....
Russellc
Addicted Member
Great. looks like a method is found and dam the routers! I still want one!:yes:
russellc
Yep, my ESS AMT 1Cs had PRs. They sound great.
http://audiokarma.org/forums/showpost.php?p=2230963&postcount=2152
enjoythemusic
Active Member
CONGRATS Zilch on the June Wired Magazine mantion on page 44! Sweeeet!
The collaborators thank you!
The writer and video star is AKer Wiredbecker. :thmbsp:
That is very cool. Way to go
Soon you'll be hosting EWave parties, like Tupperware events!
Everybody should follow Wired's link and click on his likeness to boost the traffic!
Bauhausler
Rational Subjectivist
Why I don't trust my jigsaw skills.
High contrast markings help a lot but you definitely want this mess hidden behind something.
High contrast markings help a lot but you definitely want this mess hidden behind something.
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i did not bother show the open wound, but that one looks pretty good to me. With a little imagination you can see the hack job. http://audiokarma.org/forums/showpost.php?p=2418351&postcount=3713
Maxdd
New Member
Check my work
I'm awful at math and was wondering if someone could check my work.
My econowaves will be using two 3" (dia) x 4.5" (length) ports. I was originally going to place them around back but now plan on front firing them so I can move the enclosures against the back wall.
I don't want to mess up the nice look of the front with 2 round ports and I don't want to use a grill so my new plan is to convert the volume of the 2 round ports to the dimensions of 1 wide rectangular port. First off how will this effect the sound? Is there a reason to use round ports over rectangular or square ports?
Here's my math...
The volume of 1 of my circular ports (I rounded Pi to 3):
V = Pi x R² x Length
30.375 = 3 x 2.25 x 4.5
The volume of 2 ports is twice that: 60.75
I want the rectangular port to have a width of 12" (to match my woofer) and a height of 1" so it should work out like so:
12" wide x 1" high x 5.0625" deep
Is this the correct process?
I'm awful at math and was wondering if someone could check my work.
My econowaves will be using two 3" (dia) x 4.5" (length) ports. I was originally going to place them around back but now plan on front firing them so I can move the enclosures against the back wall.
I don't want to mess up the nice look of the front with 2 round ports and I don't want to use a grill so my new plan is to convert the volume of the 2 round ports to the dimensions of 1 wide rectangular port. First off how will this effect the sound? Is there a reason to use round ports over rectangular or square ports?
Here's my math...
The volume of 1 of my circular ports (I rounded Pi to 3):
V = Pi x R² x Length
30.375 = 3 x 2.25 x 4.5
The volume of 2 ports is twice that: 60.75
I want the rectangular port to have a width of 12" (to match my woofer) and a height of 1" so it should work out like so:
12" wide x 1" high x 5.0625" deep
Is this the correct process?
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Bauhausler
Rational Subjectivist
I have a router, now.
[That's gonna require "supervision...."
The last thing I used my router on was a 3/4" roundover on a 2' X 4' slab of cast aluminum tooling plate. There isn't enough ear protection in the world for the shriek that makes when carbide bites into it.
I've decided to make a modification to Oldskl's manual circle scribe technique. Instead of using a plain screw as the scribe point I'm going to try to take a much larger screw, cut a real tooling bit point on it and then harden it. The methodology will be the same but a shaped cutter should make a smoother edge on the cut. maybe it's a waste of time but I do enjoy getting things red hot with a torch then dunking them in oil.
My rosewood veneer for the baffles came and the grain pattern's off center for this application so I'm probably back to plain walnut veneer, which I can make work.
Russellc
Addicted Member
I have a router, now.
[That's gonna require "supervision...."
That's the route I'm going, its just to difficult to do it simply!
Russellc
Bauhausler
Rational Subjectivist
Simple is often more difficult, paradoxically.
I'm dubbing OLDSKL's manual circle cutter OLDSKL's Cesar Jig. In the 1955 Jules Dassin film Rififi, Dassin plays a safe cracker named Cesar le Milanais. To crack a safe noiselessly (30 minutes of the film elapse without a word spoken) he assembles a manual cutting jig to score a hole through the side of the safe.
It was a different time and place. Can you imagine burglars in neckties now?
This is the kind of cutting point I'm talking about. I whittled this out of a 1/4" eye bolt based on the shapes of commercial lathe cutting points I've used.
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tubino
A guy with too many tubes
That's very cool, and I like Jules Dassin. But what if you used a rotozip instead of a a sharp tool? Wouldn't you have the poor man's plunge router and circle jig?
Bauhausler
Rational Subjectivist
I'm not trying to do the whole hole this way, just score a guide groove so a jigsaw can be used to cut the hole smoothly. I know a router with a circle jig would do this in an instant, but I think it's worthwhile to develop a technique to get good results for people without a router and a $40 jig. I'm using a $5 plastic jig saw from a yard sale and a hand full of screws. For us it's worth investing in good tools because we'll amortize the cost over many projects. I'm thinking of the guy who wants to make one pair of speakers without a three figure investment in power tools he might not otherwise need.
This woofer hole is for a rear-mounted woofer and I don't know the quality of finish a rotozip leaves. Might be a bit rough since it's not a finish quality tool.
My great grandfather was a pretty good wood worker. He hand built a travel trailer that he put over 100,000 miles on. The only power tools he had were a primitive hand drill, a frighteningly dangerous table saw that he built and a huge grinder. Everything else was technique rather than technology. He was born on an Amish farm in 1885 so that's how he learned. I think learning a skill to do something manually has benefits that buying a specialized piece of equipment can't match.