"Knuckle Head" Speak Build

[davepellegrene]

Re: "Knuckle Head" Speak Build

Very precise drilling to insert the circles in the plywood!! Nice. I would have bet that you would have blown out the plywood

Yeah, this was one of those worse of two evils. Do I try to run the 3/8 lags into the plywood, into a miter, poor planing, or inlay the dowels. Surprisingly it went rather easily. The problem I was having is anything smaller then 3/8 just didn't look right. Funny thing is the lags are really for looks. They will hold the baffles on but I could have done it much easier.

An interesting note I used a 1" bit with a 1" dowel rod and there was close to a 1/16" slope in the fit. I used PL's polyurethane glue and it worked out fine. I just don't remember dowels not measuring to full size. 1" dowels measure 15/16"?

Dave

[6thplanet]

Re: "Knuckle Head" Speak Build

Awesome design, those are lookin' really cool !

[johnnyrichards]

Re: "Knuckle Head" Speak Build

Dave, I am insanely jealous of you right now.

[mzisserson]

Re: "Knuckle Head" Speak Build

Dave, I am insanely jealous of you right now.

Yeah, I agree. That is just too cool. Bravo that art and craftsmenship is not dead.

[davepellegrene]

Re: "Knuckle Head" Speak Build

You guys are killing me. This is just a blast for me. I think I enjoy it so much because it gets me away from the hum drum of everyday remodeling. And it's something that when I'm finished it's mine. Well these won't be but still will go to a good guy that will appreciate them.
Went to Quaker Steak and Lube last night and was checking out the bikes hanging from the ceiling. :eek: I think I am going to try to make some fins. Paint them black then silver on the outer edge.
thanks for the complements.
Dave

[WayneN]

Re: "Knuckle Head" Speak Build

Dave,

Truly amazing workmanship, drilling that close and not blowing out the edges of the miters for the dowels baffles me! What bit did you use and did you use some kind of blocking to prevent that?

Can’t wait to see them done, these will definitely need to be in the Project Showcase!

WayneN

[davepellegrene]

Re: "Knuckle Head" Speak Build

Dave,

Truly amazing workmanship, drilling that close and not blowing out the edges of the miters for the dowels baffles me! What bit did you use and did you use some kind of blocking to prevent that?

Can’t wait to see them done, these will definitely need to be in the Project Showcase!

WayneN

Honestly it was no big deal. I used a forstner bit in the drill press. I was concerned at first and took it slow. The only trick I used was to score the plywood on the side that the bit was coming out of so it wouldn't splinter. I had thought about blocking but tried one first. I also scored the bottom of the hole so it wouldn't blow out the plywood.
I was not happy how loose the dowel fit in the hole but it actually worked out for the better. I was able to get plenty of glue in, then slip the dowel in, without squeezing to much out. By using the PL Urethane, it expanded and held really well. Thanks to Pete for turning me onto that stuff. I used to use regular PL at work. Now the Urethane is pretty much all I use.



Wait till you see my ports the chrome drain tubes worked really well. I'll post later when I'm done working on them.



Dave

[davepellegrene]

Re: "Knuckle Head" Speak Build

Todays work went well.

I cut through to the top box, and took a third of it to vent the lower box and gained a little over a liter for the woofer.



View from the top of the upper box down through the area I added for the vents.



A view from the bottom of the top box.



A view from the top through the valve cover.



Front view with the vents on. Two 1 1/4" tubes 6.75 long for a tuning of about just under 50Hz.



I ended up making fins out of some 1/4" pine I had laying around from some Anderson window jams.



They are coming together pretty good. I put together a temporary crossover last night so I am just about ready to put drivers in and give them a test drive.

Dave

[danklugherz]

Re: "Knuckle Head" Speak Build

That's so cool. Nice design Dave, those pipes are sweet.:D

[Thomas Brown]

Re: "Knuckle Head" Speak Build

I finally got some pictures and dimensions for ya on the cylinder fins, but looks like you got it handled.

Those look AMAZING! You sir are a true craftsman and artist.

[davepellegrene]

Re: "Knuckle Head" Speak Build

I finally got some pictures and dimensions for ya on the cylinder fins, but looks like you got it handled.

Those look AMAZING! You sir are a true craftsman and artist.

Well I appreciate the effort but I do think I have it worked out. After I started fiddling around I figured they would be simple to make. I had them made in about 20 minutes.
Thanks again
Dave

[davepellegrene]

Re: "Knuckle Head" Speak Build

I little more progress

After deciding I can't fit the crossovers in the base and keep the look I was after I kind of used Wolf's idea but through the head instead.



Since everybody likes pics. Here is one that shows the port area in the back and the sealed area in the front.



This is with two coats of primer sprayed on. Using Bin 123 oil based.




Here is how the crossovers will fit down into the sealed chamber. I hope.



Installed some feet because they were a little top heavy with the shape of the bass cabinet.




This is a pic of my 20 year old Makita sander that finally died and my brand new one. I bought the same one because the first one lasted so well. Interestingly the first one was $49 and the new one was $44. I bet I'll get another 20 years out of it. :rolleyes:
Look how much the pad is wore down. Lots of hours on it.





Dave

[pypes]

Re: "Knuckle Head" Speak Build

Looking good, Dave. Great build!

[johnnyrichards]

Re: "Knuckle Head" Speak Build

Wow Dave, just... wow.

[Pete Schumacher]

Re: "Knuckle Head" Speak Build

Installed some feet because they were a little top heavy with the shape of the bass cabinet.



Dave

Now Dave, you just ruined the illusion.

Those aren't feet, they're motor mounts!!!