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SI 18s- 6 in Sono Tubes - Build is done - Page 5

post #121 of 268
Thread Starter 
Nice. Looks real good for your first real build.
post #122 of 268
Quote:
Originally Posted by pdxrealtor View Post

Nice. Looks real good for your first real build.

Thanks. I'm an engineer for a living, so I like to tinker around and build lots of different things, this was a first stab at wood, building these boxes was a real learning experience. I absolutely hate MDF after this build. mad.gif Anything I build from now on out will be out of plywood.

Can't wait to see your finished product. I can't imagine what 6 or 8 of these would sound like in one room. eek.gifeek.gif
post #123 of 268
Quote:
I absolutely hate MDF after this build. mad.gif Anything I build from now on out will be out of plywood.

I bet PDX might feel the same after his build? well, that and circles.
post #124 of 268
Thread Starter 
HA!

I never minded MDF until this build. I have so much dust on my patio I can leave foot prints. Time to get back at it.
post #125 of 268
Thread Starter 
Well I've got all my inner baffles cut. The inner circles are coming out tits now just like the outer. smile.gif

I'm still not confident enough to try and line up a slot that is routed in the top baffle to the top of the sonotube so it sinks a 1/4" as suggested by Steve. You would have to be dead on OR I guess you could use a 1/2" bit instead of a 1/4". Hmmmm....

I've decided I'm going 1.5" over on the outer baffle, so it will be 25.5. The outer edge will have a 1/4" round over and the inner will have an 1/8".

Thinking about putting wheels on these things. Depends on how well I can hide them.

Here's a shot of the edge profile.

What do you all think of the edges and the wheels idea?


post #126 of 268
What are the dimensions of your dual opposed?
post #127 of 268
Thread Starter 
24" diameter
36" tall for the dual opposed.
post #128 of 268
Thread Starter 
Home stretch now. I'm not going to let a little rain slow me down.

Got three of the eight outer baffles cut. Will finish up tomorrow, route them, and just about the time I'm done Fed x will be here with my woofers. tongue.gif Then I can test fit each ring and do any sanding that needs to be done, if any, and start the glue process I guess.

I made a center 0 ruler and man does it make things precise and easier in general.





Easy up for the rain problem. smile.gif

post #129 of 268
Nice Job PD! lookin good man. Your O idea on your jig is a good one. I forgot that I made a jig out of a yardstick once that worked very well until it finally split at some point. Anyway I myself like the wheel idea, why not? It would serve both functions since you are looking for perfect placement with so many subs going. The kind of wheels that have the lock function would be good, but am sure you have thought of that. Your round overs are looking good too imo, nothing wrong with that! Look at all that MDF dust
post #130 of 268
Thread Starter 
Thanks. Goal was to finish up the baffles today but instead I spent all day chasing network issues.

Drivers showed up. Cracked one open and put it on the desk for a paperweight. biggrin.gif looks good, might have to get a spare.
post #131 of 268
Thread Starter 
Made some "REAL progress today. Everything is mounted and sketched out. Only thing not screwed and glued is the drivers, and they are all fitted. biggrin.gif


I need to order the amp. I think I'm going to order two more 18's to make an even eight. biggrin.gif

See pictures / install on the first page.
post #132 of 268
Quote:
Originally Posted by pdxrealtor View Post

Made some "REAL progress today. Everything is mounted and sketched out. Only thing not screwed and glued is the drivers, and they are all fitted. biggrin.gif


I need to order the amp. I think I'm going to order two more 18's to make an even eight. biggrin.gif

See pictures / install on the first page.

Wow sounds like you have made some real progress and a slew of pics! Are your pics posted in double or triplicate though? Looking good!.. Ok so now it sounds like eight drivers? I’m sure SI is glad you came along tongue.gifcool.gif
post #133 of 268
Quote:
Originally Posted by pdxrealtor View Post

I finally figured out how to get an accurate cut on the inner circle. I was getting variances up to a 3/8" and I couldn't figure out why.

I found this series of YouTube vids and from there it all fell into place.

http://www.youtube.com/watch?v=yGln-1qd5gM This is part two, but the entire series is good for cutting exact measurements. He doesn't come out and say it, but if you watch his steps he lays the entire cut out before he makes one cut. And this guy is talking about cuts to the 32nd.

Wow, excellent series of vids! Thanks for posting that.
post #134 of 268
Thread Starter 
Quote:
Originally Posted by steve nn View Post

Wow sounds like you have made some real progress and a slew of pics! Are your pics posted in double or triplicate though? Looking good!.. Ok so now it sounds like eight drivers? I’m sure SI is glad you came along tongue.gifcool.gif

I have no idea what happened with those pics! I am going to clean them up ASAP. smile.gif

Quote:
Originally Posted by andyc56 View Post

Wow, excellent series of vids! Thanks for posting that.

You're welcome. I thought they were excellent too. They really helped my fine tune my circle cutting. Out of the 48 circles I had to cut, I only had to sand 2 or 3 to fit either the woofer basket or the into the sonotube.
post #135 of 268
Thread Starter 
Pics cleaned up.

Steve- are you tired of this weather?
post #136 of 268
Quote:
Originally Posted by pdxrealtor View Post

Pics cleaned up.

Great job on the pics! Really nice how you added explanations to each one.
post #137 of 268
Quote:
Originally Posted by pdxrealtor View Post

Pics cleaned up.

Steve- are you tired of this weather?

No not at all! it’s all good. It gives me a good excuse to kick back and watch more movies and get more accustomed to my new sub. I know we have more rain here than over there, but I grew up here and am used to it. In the summer it's much more livable than there imo. We had a couple trees that fell over the road and driveway that we had to remove though.

Looks like I need to go check out your pics again.. you must be getting pretty close! Are you going to do the 7-8th drivers now or take a break?
post #138 of 268
Thread Starter 
Quote:
Originally Posted by andyc56 View Post

Great job on the pics! Really nice how you added explanations to each one.

Thanks. I spent a lot of time, during my normal daily activities, thinking about a good way to assemble these things. I added the comments to hopefully help the next guy get a bit of a head start.

It may seem elementary to some, but to others it may help smile.gif
post #139 of 268
Thread Starter 
Quote:
Originally Posted by steve nn View Post

No not at all! it’s all good. It gives me a good excuse to kick back and watch more movies and get more accustomed to my new sub. I know we have more rain here than over there, but I grew up here and am used to it. In the summer it's much more livable than there imo. We had a couple trees that fell over the road and driveway that we had to remove though.

Looks like I need to go check out your pics again.. you must be getting pretty close! Are you going to do the 7-8th drivers now or take a break?

I have a love/hate thing going on right now. Mostly because I don't have any shop space, and no subs. We caught up on Breaking Bad just in time for the finale so it hasn't been all bad.

I have the room for a 7 and 8. I have a few baffles (I forgot I wasn't building dual opposed for 2 of the 4 enclosures rolleyes.gif )and my skills are sharp right now with everything being so fresh. Figure it would be 500.00. The amp I'm getting even has room for two more.

On the flip side - I think I need to get these up and running first though. If six turns out to be too much what's the point of adding two more. Add that with the weather, the mountain getting its first snow and I probably should wait.
post #140 of 268
Quote:
Originally Posted by pdxrealtor View Post

Thanks. I spent a lot of time, during my normal daily activities, thinking about a good way to assemble these things. I added the comments to hopefully help the next guy get a bit of a head start.

It may seem elementary to some, but to others it may help smile.gif

I think that is very nice of you to do. Once you have done it a few or more times we sort of take things for granted. I remember coming over here and asking questions, I still do, it’s not quite the same as over in the reg ID section. I’ll check that out too when I get a chance and use it for a reference if the need should come up. cool.gif
Edited by steve nn - 9/30/13 at 3:42am
post #141 of 268
Quote:
Quote:
On the flip side - I think I need to get these up and running first though. If six turns out to be too much what's the point of adding two more. Add that with the weather, the mountain getting its first snow and I probably should wait.

Heck yeah take a break. See what you have going and go from there. It’s good when we share our mistakes so we can laugh at each other but more so at ourselves.. been there done that. A little embarrassing at times though. Keeps us from getting to big a head. tongue.gif
post #142 of 268
bump....updates?
post #143 of 268
Thread Starter 
Look at at pg. 1 !!!! Almost done
post #144 of 268
sweet!
post #145 of 268
Thread Starter 
Should be ordering the amp this week. The baffles would be painted already but weve had torrential rains that won't let up.

Mother nature....... Could be worse.
post #146 of 268
Quote:
Originally Posted by pdxrealtor View Post

Look at at pg. 1 !!!! Almost done

Looking good! your down to the final stretch.
post #147 of 268
Thread Starter 
So today I visited a local speaker repair shop that's been around in Portland since the 50s. Great place. Dad took me there as a kid. smile.gif

Anyways.... I got a speakON connectors for the amp and for the sonotubes. He told me to use non shielded speaker wire to connect the speakON connectors and I'd be good to go.

I also got enough black carpet to cover the tubes. biggrin.gif

The speakON connectors for the tube are these :

I think they will work pretty good if I drill holes for all four screws and use nuts/washers on the back side. Then add silicone sealant, to the back side as well.

I kind of like speakON connectors. Nothing to them should I need to move in another direction. It's always the little things...... smile.gif

Today I finally got 99% of the painting done too. I'm thinking of throwing a gloss coat on top of the bed liner. At least for the two smaller enclosures that will be out in the open.

Pics up soon.
post #148 of 268
Did you ever figure out what you wanted to do on the fill? On a few sealed I have went with fill and a few nothing. Determining how much fill you like can be rather argues with having to pull the driver and then test things out. Might I ask what carpet you went with? With two more projected, probably enough to do a room or two. smile.gif
post #149 of 268
Looking very good! Is that speaker repair shop Jamac by chance?

Dan
post #150 of 268
Thread Starter 
JMAC , Yes. smile.gif

FWIW a guy from Eugen, OR. was up last week when I was in the shop. Had some speakers that were ancient. Needed re-coned or re-habbed one or the other. ( I don't wan't to speak out of place) and JMAC didn't even flinch. tongue.gif
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