View Full Version : Dumpster K2 !
richluvsound
06-21-2010, 01:26 AM
Hi All ,
everything except adhesives is pre-owned or from a skip !
richluvsound
06-21-2010, 01:36 AM
Sorry , there is no order. :(
Nice!
I thought you were doing Array clones?
Do you put the horn in a separate dog box? If not, how do you seal it?
It also looks like you are putting some sort of goop (à la Westlake) on the braces (and surfaces I suppose)? Please tell us more about that.
Robh3606
06-21-2010, 07:09 AM
Looking good!
Rob:)
spkrman57
06-21-2010, 07:31 AM
I can't wait for pics of the finished product!
Ron
badman
06-21-2010, 08:04 AM
Wow, that horn fabrication is a beauty!
lowpoke
06-21-2010, 09:15 PM
Man, nice workshop! (Cabinets look pretty good too.) ;)
richluvsound
06-22-2010, 12:14 AM
Nice!
I thought you were doing Array clones?
Do you put the horn in a separate dog box? If not, how do you seal it?
It also looks like you are putting some sort of goop (à la Westlake) on the braces (and surfaces I suppose)? Please tell us more about that.
Hi Thomas,
sikaflex on anything that when tapped sounded too higher FQ .... the horn has the same material on it 20 mm thick . The horn is made of fibre glass matt then built up in Slate powder and resin mix .
The mounting ring for the woofer is also floating on Sikaflex .
The bottom curved panel is filled with sand and resin ,
the baffle is 51mm thick and the cab walls are 40mm partical board .
The base is 90 mm MDF and the top , removable , is 33mm laminated birch ply.
As for the dog box ? I wanted to keep the size down and I'm hoping with the amount of damping on the horn I'll get away with without one . I will add one if needed .
Decided to use 2234 and 2435, box tuned to around 35-40 htz . I wanted more punch and less boom !
CC networks from yours truly , Maple veneer as its really cheap at the moment and I have some solid kicking around to use up .
The mounting plates for the 2435 are laminated ally and Corian. I had collected all kinds of junk in the old workshop and have had to be quite inventive to make things work. The work shop belongs to a good friend who had stored the cabs for me until I was fit enough to do something with them .
In exchange I'm teaching him how to turn things on a lathe, both metal and wood ... all I need now is a milling machine and I can start making heat sinks and face plates for amp building . I have access to a foundry to cast the heat sinks in bronze, copper or ally ....
I'll post some more pics when I have had a chance to find my camera ...
thanks for everything ;) Pos.
Richard
cooky1257
06-22-2010, 01:53 AM
Looking good Rich, nice to see you back in the groove.
Cooky
Andyoz
06-22-2010, 09:54 AM
Reading the thread title, am I the only one here that thought Rich had found some K2's in a London dumpster :blink:
ps. Those Westlake BBSM12's in Dublin are still for sale (I think).
richluvsound
06-22-2010, 10:31 AM
Reading the thread title, am I the only one here that thought Rich had found some K2's in a London dumpster :blink:
ps. Those Westlake BBSM12's in Dublin are still for sale (I think).
yep, and there is a Pass Labs amp and a Accuphase CD player back in the shop !
not this year dear .... :D
macaroonie
07-06-2010, 04:43 PM
I can see where this is heading. More pic lazy bones , it looks great so far. Flares are very very tasty :)
richluvsound
07-07-2010, 01:55 AM
Got company for a couple of weeks so things have slowed up touch . Venner is being ordered as soon as I finish this reply :)
more pics next week !
robertbartsch
07-07-2010, 04:37 AM
...looks great so far.
I have purchased some veneer for a new finish on a pair of VOTT cabs so I would like to see how this is done.
Thx...
sikaflex on anything that when tapped sounded too higher FQ .... the horn has the same material on it 20 mm thick .
I found that Sikaflex comes in many flavors:
http://www.sikaindustry.com/ipd-ma-products
Which one do you use? How do you apply it to get 20mm layers?
It looks a lot like the famous westlake goop.
richluvsound
08-02-2010, 02:38 PM
Hi Pos ,
sikaflex is the product ... comes in a tube that fits into a large sealant gun . The layers were built up in stages of about 6mm . Takes 24 hours to set . Cleans up with white spirit .
I'll post some picks of the horns tomorrow
Rich
badman
08-03-2010, 07:55 AM
Hi Pos ,
sikaflex is the product ... comes in a tube that fits into a large sealant gun . The layers were built up in stages of about 6mm . Takes 24 hours to set . Cleans up with white spirit .
I'll post some picks of the horns tomorrow
Rich
Which version? The 291 and 552 both seem applicable as do others.
richluvsound
08-03-2010, 09:18 AM
Pic up date !
grumpy
08-03-2010, 10:53 AM
Nice progress!
Well there you go... don't see it on the sikausa.com site:
http://www.sika.co.uk/uk-home/uk-con/uk_construction-builders-merchants/uk_construction-adhesives-sealant-fillers.htm
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