Curved SLA

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MTB goat
Posts: 52
Joined: Mon Jun 09, 2014 6:06 pm
Location: Southern CA

Curved SLA

#1 Post by MTB goat »

I may be making mine out of 3/4 MDF just because I have a bunch laying around taking up space. Not sure though, after just cutting it up into workable pieces already not real happy with the dust. :?

I have a few questions:

Most pictures I have seen of these are without the narrow "end" pieces on the front baffle. (did not see this in the plans) And so instead, the last driver panel meets up with the sides. Was wondering why?

And is it important to flush mount the driver? I may just try to see if I can do it with my home brew router jig.

lastly (for now) how do you wire the driver when the connectors are hard up against the cut-out? The connectors on the GW driver go out parallel with the flange of the driver and very close to it. Mounting it in 3/4, it looks like they will be buried in the hole with no way to get to them. I guess I will figure this out, it just seems awkward.

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Bill Fitzmaurice
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Re: Curved SLA

#2 Post by Bill Fitzmaurice »

MTB goat wrote: Most pictures I have seen of these are without the narrow "end" pieces on the front baffle. (did not see this in the plans) And so instead, the last driver panel meets up with the sides. Was wondering why?
Those were pictures of previous versions.
And is it important to flush mount the driver?
No. That's why there's no mention of doing so in the plans.
lastly (for now) how do you wire the driver when the connectors are hard up against the cut-out?
Wire the drivers before mounting them.

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MTB goat
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Re: Curved SLA

#3 Post by MTB goat »

:D Thanks Bill.

I just came back in to edit my post to say never mind that last comment about wiring the driver. I just did a test cut sequence with my jig to flush mount and it looks like it will work just fine drops the connectors right below the panel.

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MTB goat
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Re: Curved SLA

#4 Post by MTB goat »

OK, I know I'm going to get it for asking, but I may as well ask. (the answer is always don't deviate from the plans)

Would it be OK to add a 1/4" or so to the front baffle & sides height to allow for my flush mount step? Would the slight increase in volume of the enclosure be an issue? :confused:

I like the flush mount look. However, maybe it's a waste of time as I plan on making a grill / cover for it.

Scrap piece test hole pics:
Attachments
HOLE.jpg
Beer speaker.jpg

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Bill Fitzmaurice
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Re: Curved SLA

#5 Post by Bill Fitzmaurice »

MTB goat wrote:it's a waste of time as I plan on making a grill / cover for it.
I agree.

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MTB goat
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Re: Curved SLA

#6 Post by MTB goat »

Been too long with no progress. It's been so hot and humid lately, I come home from work and just collapse on the couch and suck up the AC.

Today I finally got out in the garage and made a little model to better help me understand the angles and try out the table saw.
Attachments
mini curved sla.jpg

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Hackomatic
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Location: West TN

Re: Curved SLA

#7 Post by Hackomatic »

MTB goat wrote:Been too long with no progress. It's been so hot and humid lately, I come home from work and just collapse on the couch and suck up the AC.
. .and suck down the IPA. :lol:

I know the feeling. Although it's be decent overall this summer in Tennessee, it seems the heat and humidity always know when I'm gonna be in the garage speakering. :(
Dave H

caddylackn
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Joined: Tue Apr 15, 2014 8:24 am

Re: Curved SLA

#8 Post by caddylackn »

Nothing makes you hotter (or thirstier) than be covered in MDF dust on a hot day.

Is that an old craftsman table saw I see?
16.5" AT w/ Infinity 860w
TLAHs w/ 9 mids & 16 tweets
17" THTLP w/ Dayton RSS315HF-4
16" TAT w/ Infinity 1060w
18" TT w/ Dayton DCS-205-4
5.5" TrT w/ DCS-205-4
T-18 w/ DCS-205-4
33" THT w/ Dayton Titantic 1200
DR200s

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MTB goat
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Location: Southern CA

Re: Curved SLA

#9 Post by MTB goat »

caddylackn wrote: Is that an old craftsman table saw I see?
Yes. A family heirloom, from the 50s I believe. The table is very small, and I can't seem to get the blade perfectly square. I tried building a small jig for it but the slots in table are so small. at any rate, I guess it's better than nothing. I can sand out the imperfect edges of the cabinet. I don't have any pics handy, but the curved baffle turned out OK. I used PL on the top and bottom just to make sure. I plan to make a removable back instead of bottom. I will try to post up some more pics soon.

Definitely need to get some bondo. :oops:

caddylackn
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Re: Curved SLA

#10 Post by caddylackn »

I have read on the old tool forum that aligning these old saws is critical and easy by just taking apart the blade alignment mechanisms, cleaning, and replacing with new washers as the old washers get set grooves which keeps them from getting back to square. These old saws are becoming highly desirable once cleaned up and outfitted with a few mods. I just picked up a nice 50s Craftsman Table saw on craigslist for shop use. I have the double cast extensions, and other bonuses. I love the cool geared fence on mine. These saws are beautiful when restored.
16.5" AT w/ Infinity 860w
TLAHs w/ 9 mids & 16 tweets
17" THTLP w/ Dayton RSS315HF-4
16" TAT w/ Infinity 1060w
18" TT w/ Dayton DCS-205-4
5.5" TrT w/ DCS-205-4
T-18 w/ DCS-205-4
33" THT w/ Dayton Titantic 1200
DR200s

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MTB goat
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Location: Southern CA

Re: Curved SLA

#11 Post by MTB goat »

Thanks, I will look into that. if I keep building these cabinets, I will have to do something.

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MTB goat
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Re: Curved SLA

#12 Post by MTB goat »

Almost done. I endured the heat for a few days and did some sanding and got some primer on it.

working on a grill frame too.
Attachments
SLA primered.jpg
SLA speakerframe.jpg
SLA sanded.jpg

sine143
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Location: Raleigh NC

Re: Curved SLA

#13 Post by sine143 »

caddylackn wrote:Nothing makes you hotter (or thirstier) than be covered in MDF dust on a hot day.

Is that an old craftsman table saw I see?

Try concrete dust. or quick set tile concrete. been grinding way to much of it off floors lately...
Built:
2x Tuba 30s delta12lf loaded (gone)
4x Otop12 d2512 loaded
8x t48s (18, 18, 24, 24, 30, 30) 3015lf loaded
2x AT (1 mcm, 1 gto 804)
2x SLA Pro (dayton pa6, 6 goldwood piezo loaded)
1x bastard XF208

2x OT212 (delta pro 450a loaded, eminence psd)

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Hackomatic
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Re: Curved SLA

#14 Post by Hackomatic »

Lookin' good! :clap:
Dave H

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MTB goat
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Location: Southern CA

Re: Curved SLA

#15 Post by MTB goat »

Hackomatic wrote:Lookin' good! :clap:
hey, thanks. it's my first attempt at making something look half way decent.

The grill cover came out, eh... OK I guess. I used spray adhesive instead of staples. had a bit of trouble in the corners and I got a little of the adhesive on the front of the cloth. but not bad for my first attempt I suppose. I also used some little ball and socket fasteners from Parts Express to attach it to the cabinet. I like them and would recommend using them, however you have to be careful drilling and tapping them in place when they are close to the edge of the cab. I got some small cracks in the MDF one a few of them.
Attachments
grill fasteners 2.jpg
grill fasteners 1.jpg
grill 3.jpg
grill 2.jpg
grill 1.jpg

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