3D Printed T48 Mini (AKA T9)

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shawn_g
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3D Printed T48 Mini (AKA T9)

#1 Post by shawn_g »

I hope this isn't against the rules and I'm in the right section.

I was bored and have access to a 3D printer, so I 3D printed a T48 for fun. It's roughly 19% of a normal size slim T48 and uses a Cambridge Soundworks 2.5" driver from a cube speaker with unknown specs. I used plexiglass for the side and access cover. All I had laying around was automotive RTV sealant, but I'll probably re-do it with epoxy or something more permanent.

If my numbers are right, the shortened horn length puts the tuning at around 160hz, so I guess it's more of a mid-bass cabinet now. :lol:

Anyway, here are the pics.
Image

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Nothing scientific on this test. Measurement mic is a foot away from the mouth sitting on the table.
Image
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Bruce Weldy
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Re: 3D Printed T48 Mini (AKA T9)

#2 Post by Bruce Weldy »

Ha! I love it......but, you've got waaayyyy too much time on your hands.

6 - T39 3012LF
4 - OT12 2512
1 - T24
1 - SLA Pro
2 - XF210

"A system with a few knobs set up by someone who knows what they are doing is always better than one with a lot of knobs set up by someone who doesn't."
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shawn_g
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Re: 3D Printed T48 Mini (AKA T9)

#3 Post by shawn_g »

Bruce Weldy wrote:Ha! I love it......but, you've got waaayyyy too much time on your hands.
I won't argue with that. :lol:
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ripNdeb
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Re: 3D Printed T48 Mini (AKA T9)

#4 Post by ripNdeb »

Good thing you made handles; thing must weigh a ton :)
2X OTop 112, 3012HO, melded - 2X T39, 27", Lab 12 - XF 212 - 4 DR250, 2 melded, 2 straight
2 20" T39 3012LF - WH10 - WH8 - in the shop - 2 more 20" T39s
http://saltandlighteureka.org still need a trailer :)
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Grant Bunter
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Re: 3D Printed T48 Mini (AKA T9)

#5 Post by Grant Bunter »

where's the like button?
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" KL3010LF , 2 x 28" 3012LF.
WH8: x 6 with melded array wired series/parallel.
Bunter's Audio and Lighting "like"s would be most appreciated...
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Tom Smit
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Re: 3D Printed T48 Mini (AKA T9)

#6 Post by Tom Smit »

shawn_g wrote: and uses a Cambridge Soundworks 2.5" driver from a cube speaker with unknown specs.
Mount the driver on an IB and measure again to get a base line. :)
TomS
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shawn_g
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Re: 3D Printed T48 Mini (AKA T9)

#7 Post by shawn_g »

Tom Smit wrote:
shawn_g wrote: and uses a Cambridge Soundworks 2.5" driver from a cube speaker with unknown specs.
Mount the driver on an IB and measure again to get a base line. :)
I actually have another one in a sealed enclosure, but I don't have it here at my house. I'll try to pull a measurement on it next week and post the results...for science.
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J_Dunavin
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Re: 3D Printed T48 Mini (AKA T9)

#8 Post by J_Dunavin »

"Horns work best in groups...."
You need like 8 of em 8)
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
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Rich4349
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Joined: Wed Jul 30, 2008 10:18 am
Location: Kankakee, IL

Re: 3D Printed T48 Mini (AKA T9)

#9 Post by Rich4349 »

Not as long as you wall load them...using your head as the wall!
2 DR250s, 2 27" Lab15 T-60s, 2 30" Neo Titan 39s, 1 Autotuba...and looking for more!
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ctmullins
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Re: 3D Printed T48 Mini (AKA T9)

#10 Post by ctmullins »

No vertical mouth braces?!? It's gonna walk across your desk at anything more than 0.2 volts.... ;)

Kidding of course. Nice job! Looking forward to the first gig report. :hyper:
-todd

5 and 8 string bass | SansAmp | Crown | 2 x J110
2 x W8 panel-mount
2 x T39 24" 3012LF
4 x OT12 2512 melded (finally done!)
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Bruce Weldy
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Re: 3D Printed T48 Mini (AKA T9)

#11 Post by Bruce Weldy »

ctmullins wrote: Looking forward to the first gig report. :hyper:
I can already tell ya' that the guitar player will be too loud....

6 - T39 3012LF
4 - OT12 2512
1 - T24
1 - SLA Pro
2 - XF210

"A system with a few knobs set up by someone who knows what they are doing is always better than one with a lot of knobs set up by someone who doesn't."
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67baja
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Re: 3D Printed T48 Mini (AKA T9)

#12 Post by 67baja »

You should have went with a premium driver:

http://www.parts-express.com/tang-band- ... r--264-875
2 THTs, 2 TLAH, SLA curved, 1 8-AT, 1 AT JBL 1002D, 4 Otop12s, Jack 12, TT with Eminence 10", 2 SLAs, 1 T30 slim, 2 T30s (2-10" each), SLA Pros, TrT.
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shawn_g
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Re: 3D Printed T48 Mini (AKA T9)

#13 Post by shawn_g »

67baja wrote:You should have went with a premium driver:

http://www.parts-express.com/tang-band- ... r--264-875
I'm amazed that exists. 2mm xmax!
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Bruce Weldy
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Re: 3D Printed T48 Mini (AKA T9)

#14 Post by Bruce Weldy »

shawn_g wrote:
67baja wrote:You should have went with a premium driver:

http://www.parts-express.com/tang-band- ... r--264-875
I'm amazed that exists. 2mm xmax!
A bit of a stretch for them to market it as a subwoofer when it only goes down to 90hz....and that's probably -10db.

6 - T39 3012LF
4 - OT12 2512
1 - T24
1 - SLA Pro
2 - XF210

"A system with a few knobs set up by someone who knows what they are doing is always better than one with a lot of knobs set up by someone who doesn't."
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James Champer
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Re: 3D Printed T48 Mini (AKA T9)

#15 Post by James Champer »

leak-tester.jpg
Better check that RTV
Retired Authorized Loudspeaker Builder - Indianapolis, IN
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