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Topic with many replies

COFFIN CAMP


Author Message
Written on: 11.05.2011 19:04
Saturnus
Posts: 3047
Ace > The Coffin Camp wrote:

Magnus x wrote:

Alot of stoned/drunken memories from your camp last year. Great fucking camp!

Looking forward to seeing the new coffin blaster this year, and i hope you will play some dubstep too! If your camp is into that? Anyways, i`ll see you @ RF 2011 @ camp C! icon_smile.gif




Looking forward having you back!
And yes, there will be dubstep! icon_biggrin.gif


No there won't. I've designed the speakers to self-destruct if they're subjected to crap music. icon_biggrin.gif
Written on: 11.05.2011 19:52
Ace > The Coffin Camp
Posts: 402
Saturnus wrote:

No there won't. I've designed the speakers to self-destruct if they're subjected to crap music. icon_biggrin.gif


In other words, this will be a short-lived CoffinBlaster! haha
And BTW, been trying to get in touch with you on facebook concerning modifications on the filters to match the new midrange-speakers. If you got the time icon_smile.gif
Written on: 11.05.2011 20:08
Ace > The Coffin Camp
Posts: 402
in other news:

Like I have written before, we're continuing our build on friday, and througout the weekend!
Really looking forward to see how far we'll get! icon_smile.gif
It sure helps to have our 3D blueprints to work by! All the problems can be solved on the computer instead of in real life. That's a really nice way to go at it, when build-time is limited.

Anyway, we went by Biltema the other day, and finally picked up the legs for our tower!
http://kvanneid.com/coffincamp/forum/30/17.jpg
These are actually used to push sheets of plaster up to the roof when mounting.
But they are perfect, cause they have a metal plate on the bottom to put screws through, and it has adjustable length, and on top of that, the two parts come loose!
This way we can take the tower of for transport icon_smile.gif


http://kvanneid.com/coffincamp/forum/30/18.jpg
I finished the filters that Saturnus designed for us!
Really cool to have them perfectly fitted to our speakers!


http://kvanneid.com/coffincamp/forum/30/19.jpg
Here they are closed, with the proper channels marked.

http://kvanneid.com/coffincamp/forum/30/20.jpg
And two days ago, I got our spankin' new midrange-speakers for the tower! Good stuff!

http://kvanneid.com/coffincamp/forum/30/21.jpg
And today, just bored at work, I made a stencil for the Coffin Blaster.
It's a brief history of the Coffin Blaster's ancestors (R.I.P) and their lifespan.
It will be sprayed on the ''fat'' end of the coffin, so facing the people partying in our camp icon_smile.gif

so that's it for now!
And loads of new photos will be posted here over the weekend, to show our progress icon_smile.gif




[This article was edited 1 times, at last 11.05.2011 at 20:12.]
Written on: 11.05.2011 20:17
Saturnus
Posts: 3047
Those SNII mids, man, aren't those some of the most beautiful speaker drivers ever?

Handmade in Thailand.
Written on: 11.05.2011 20:31
Ace > The Coffin Camp
Posts: 402
Saturnus wrote:

Those SNII mids, man, aren't those some of the most beautiful speaker drivers ever?

Handmade in Thailand.


They ARE beautifull!
I was looking at them for 15 minutes straight when I got them.
It's a shame the tower's not gonna be plexiglass, cause even the chassis and the cable-pins on the back look really nice icon_smile.gif
Can't wait to hear what they sound like icon_smile.gif
Written on: 11.05.2011 23:19
Saturnus
Posts: 3047
Ace > The Coffin Camp wrote:

Saturnus wrote:

Those SNII mids, man, aren't those some of the most beautiful speaker drivers ever?

Handmade in Thailand.


They ARE beautifull!
I was looking at them for 15 minutes straight when I got them.
It's a shame the tower's not gonna be plexiglass, cause even the chassis and the cable-pins on the back look really nice icon_smile.gif
Can't wait to hear what they sound like icon_smile.gif


Maybe something to consider for next year. To make the tower speaker in plexiglass. In the 3D drawing it does look absolutely gorgeous.
Written on: 11.05.2011 23:42
Ace > The Coffin Camp
Posts: 402
My dad used to work with installing windows etc.
He gets a pretty good deal on polycarbonate!
That would look NICE!
Just add a red film to the outside to match the coffin, and put the strobes inside of the tower rather than on the outside! haha!
Written on: 12.05.2011 00:03
Saturnus
Posts: 3047
That'd probably generated some unwanted heat. And I'm not sure there's room. They're pretty stuffed already. But you got some really high quality drivers in them, although still fairly inexpensive, so why not flaunt them icon_biggrin.gif

[This article was edited 1 times, at last 12.05.2011 at 00:03.]
Written on: 12.05.2011 00:04
schlindholm
Posts: 385
Saturnus wrote:

Ace > The Coffin Camp wrote:

Saturnus wrote:

Those SNII mids, man, aren't those some of the most beautiful speaker drivers ever?

Handmade in Thailand.


They ARE beautifull!
I was looking at them for 15 minutes straight when I got them.
It's a shame the tower's not gonna be plexiglass, cause even the chassis and the cable-pins on the back look really nice icon_smile.gif
Can't wait to hear what they sound like icon_smile.gif


Maybe something to consider for next year. To make the tower speaker in plexiglass. In the 3D drawing it does look absolutely gorgeous.


There should be time to make it before RF11. Come on Ace, we want to see that idea realized. The sooner the better
Written on: 12.05.2011 03:11
Ace > The Coffin Camp
Posts: 402
haha! since polycarbonate is about 3000DKK pr m2, I think that idea will have to wait for next year icon_smile.gif

as for the strobes, they have had 2x2x5 cm plastic casing with no problem so far.
They generate close to no heat at all. I can touch the bulbs when they are flashing.
Sound might be your thing Saturnus, but cameras and flashes are mine icon_razz.gif
And these flashes are pretty damn week. hehe

[This article was edited 1 times, at last 12.05.2011 at 03:12.]
Written on: 15.05.2011 20:25
Saturnus
Posts: 3047
So is it done?
Written on: 16.05.2011 23:42
Ace > The Coffin Camp
Posts: 402
Allright!

This weekends build is over!
We got alot done, in my opinion atleast.
But we hit some snags aswell, that took alot of our time, but all in all, I think we're staying on schedule icon_smile.gif

So here are some of the things we have done this weekend:




http://kvanneid.com/coffincamp/forum/30/22.jpg
First of, I had to travel with the new speakers and parts by train, so I snagged a milk-cart from a mall nearby. haha.
But no worries, it was delivered at a different mall in the town we do the build, so Tine, the milk-company, got it back icon_smile.gif



http://kvanneid.com/coffincamp/forum/30/23.jpg
Since this is a roskilde-build, I had to get the essentials aswell icon_smile.gif



http://kvanneid.com/coffincamp/forum/30/24.jpg
As mentioned before, we are actually building TWO coffins this year.
It's not that we're gonna bring a backup, hehe.
But we have a deal, that we'll build a skateble COFFIN CURB, with the basic features of the Coffin Blaster. So the shape and dimentions are right, and it has a nice stereo, good batteries, and the option to connect a microphone so that they can use it to hold small contests at events etc.
In return, we get all the wood, wires and paint for the Coffin Blaster for free icon_smile.gif
And since I LOVE to build things, it's just another addition to my hobby icon_smile.gif
It's running of a lepai2020 and has 4 HP-10W's and 10 piezos.
4 of the 7,4Ah 12V SLA batteries, and should pretty much play forever on that alone.
As an extra feature, I've added a terminal on the side, where a car-battery charger can be plugged in if it runs low.
Since it will be mostly used at events etc, I could have hooked it up with powersupply that plugs into the wall, but since wires are a hassle when people are skating it, I figured this would be the best solution.
There is a small room under a cover next to the terminal, where an iPod, microphone and charger can be stored. This is also where the amp is, so the different controls on it can be reached.



http://kvanneid.com/coffincamp/forum/30/25.jpg
here is a photo of it standing upright, to show the dimensions.
on the frame you see going around the coffin, there will be a box-rail, measuring 5x10cm, running around the intire obstacle icon_smile.gif



NOW! Back to the Coffin Blaster!
This weekend we had 3 things on our agenda. Making the lid work, finishing the tower, and in doing so, completing the soundsystem. Also we wanted to get up the railing on top of the coffin, and install the lights.
We got the first two things done, cause sunday was spent trying to fix the audio-trouble we had, but mor on that later.



http://kvanneid.com/coffincamp/forum/30/26.jpg
So here is the side-view of the coffin with the lid closed.
And since we got it working:



http://kvanneid.com/coffincamp/forum/30/27.jpg
here it is open!
The different compartments are, from left, storage for ipods and all the stuff we bring on tour. sweaters if it gets to hot etc.
the four smaller compartments in the middle are for storing bittles of spirits upright.
The middle, and closed of box, holds the actuator, and and extendable curled wire for powering the lights on the railing fo the lid, and some downloghts to better see inside the coffin at night. The last compartment on the right is for beer icon_smile.gif



Here is a video-demo of the lid going up and down!

All powered by a 12v linear actuator that I got from Firgelli Automation
It's strong enough to lift the lid, and about two cases of beer!
You can get them with more power, up to 450kg!
But that makes them slower.



Then it was time for the tower!
A part I was emberrased about last year. I thought it ruined the look of the coffin, and designed it to be easy to take on and of. But last year we were also proven the necessity of it, and decided to go bigger and better this year!
And when Saturnus sent me a Sketch-up-drawing of it, I was really stoked!
I looked good with the coffin, was sturdy, and he had taken into account both minimal size, and optimal usage of space to give the best placement of speakers and give good sound!



http://kvanneid.com/coffincamp/forum/30/29.jpg
We spent quite a few hours getting all the measurments correct, and fitting all the angles right!



http://kvanneid.com/coffincamp/forum/30/30.jpg
The speakers fitted perfectly!



http://kvanneid.com/coffincamp/forum/30/31.jpg
Now fitting the tower legs has been a big pain in the ass.
Since I didn't have the speakers in my 3D software, I had no idea how to calculate where the legs would fit.
but once we had the speakers in, we could take of the top-plate of the box, stick them in, and match.
Finally we took the whole thing apart, and drilled through all 3 layers at once. PERFECT FIT!
Before we put it together again, we took the bottom plate of the tower, and matched it with the top of the coffin, so the holes would allign all the way to the bottom of the coffin. Worked like a charm icon_smile.gif



http://kvanneid.com/coffincamp/forum/30/32.jpg
So here it is! icon_smile.gif
All done, and ready to be mounted!



http://kvanneid.com/coffincamp/forum/30/34.jpg
Fitted on top!
Now only missing the covers ad getting connected.



http://kvanneid.com/coffincamp/forum/30/33.jpg
Final touch, adding the cableshoes on the wires to connect it!



http://kvanneid.com/coffincamp/forum/30/35.jpg
Finally putting the Saturnus-designed filters in the coffin.
Connecting them to the amp, and the tower.
BOY was I nervous before testing them! But they worked great!
Thanks to Saturnus, once again!



http://kvanneid.com/coffincamp/forum/30/36.jpg
Here you have the tower in place, but you can see the cables running down the side of it.
These will be going inside the tower legs, so it will look great in the end icon_smile.gif
But we're missing a metal-saw from my toolbox, so that will be done next weekend.
You can also see the COFFIN CURB next to the COFFIN BLASTER icon_smile.gif



http://kvanneid.com/coffincamp/forum/30/37.jpg
And there you have it, this is how it wil look in the end.
Only missing some red paint, and the strobes that go on the narrow side facing the crowd, between the speakers.



So that's what we got done this weekend, I think we did good!
Unlike last weekend, I didn't get any help untill saturday night, so we didn't get quite as much done as I hoped for. But like I said, we still did good!



Here is a video of the Coffin Blaster play with (almost) all the things working the way they should!

Now the volume is really good this year, and the soundQUALITY is aswell! (Thanks to the above mentioned forum-superhero)
But it's still going to be better! We didn't have a functioning crossover, so the subs had a little too much of the higher frequencies.
And don't get fooled by the audio on clip, the iPhone isn't exactly the proper translation from reality to video.



http://kvanneid.com/coffincamp/forum/30/39.jpg
Oh, and we finished all the beers, and another case and a half on top of my first icon_smile.gif

Next weekend, we got more Coffin Blaster on the agenda.
Finishing the lights and railing on the lid, putting on wheels, and pretty much fix all srewholes and cracks with putty, and start painting the lid and tower.

As for the problems we met, after about half an hour of playing, our amp caved in, for an unknown reason.
This is really troubleing to me, since I'm worried the same will happen if we get a new one.
But we'll try with a new one, and hope for the best.
Seeing that the old one served well all through last years Roskilde, and has since then been dragged all over the place loose, without beeing played for the last year, I could simply be that it has been mistreated.

So untill that's fixed, we can't close up the body of the coffin for putty and paint, but we'll get there in time icon_smile.gif

Finally I'll round this post off, with two photos of coffin so far, and if you really read all the shit I write, I thank you for your patience and interest icon_smile.gif



http://kvanneid.com/coffincamp/forum/30/40.jpg



http://kvanneid.com/coffincamp/forum/30/41.jpg
Written on: 17.05.2011 00:03
schlindholm
Posts: 385
About time with a new update Ace! and WOWOWOWOWOWOWOWOOWOWOWOWOOWOW that is one big coffin. Glad the protest was last year. We wouldn't be able to carry that thing over the bridge icon_razz.gif
Written on: 17.05.2011 00:05
Saturnus
Posts: 3047
There's only one word to say: MASTERCLASS!

About the bass problem we talked about I think that will improve a lot when it gets closed, and if it still needs tweaking you can drill holes for reflex ports. I'm also very certain the sound quality will improve a lot when it has played some 24 hours at least. All PA units needs a little time before they settle in to optimum performance.

Really fantastic build.
Written on: 17.05.2011 04:54
Ace > The Coffin Camp
Posts: 402
Thanks for the great feedback guys! Rally appreciate that! icon_smile.gif
As for the speakers, I'm certan they will preform great in the end, but there is still a little to go. But we're getting there, mostly thanks to you' Saturnus icon_smile.gif

And ganjaoux, you're right!
It's gonna be HUGE! Haha!
But I don't think it would be much harder to get across the bridge.
First off, there was a good 50 kilos extra last year because of the beer inside, haha!
And this year, it's built a little more strategically when it comes to the wood used.
And we got an additional 30 kilos less in batteries aswell! icon_smile.gif
It's pretty much just the size, and the way I look at it, it just makes it easier for more people to grab a hold of it icon_razz.gif
Written on: 17.05.2011 09:04
Christian
Posts: 104
That is waaay cool, guys. My camp is also planning on living at C like usual and even though you have kept us awake with the coffin a couple of times, it's worth it for the awesomeness of the coffin blaster!

Anyway, I have an idea for the coffin for next year...it may be a bit too much, but it would be seriously bad ass if it worked:

A guitar preamp connected to the amp with a plug for an electric guitar and then let people play some guitar that you guys bring...just something crappy €100 guitar or something...I bet there are even people that will donate something for the project.

Anyway, there are some hardcore guitarists on the festival so this could really bring some moments that you will never forget. icon_smile.gif
Written on: 18.05.2011 14:13
Desmond
Posts: 479
how much dBA reaches the coffin blaster??

i'm asking because of this:
http://issuu.com/roskilde-festival/docs/camp_codex_a4_english?mode=a_p (page 15)
Written on: 18.05.2011 15:05
Saturnus
Posts: 3047
94dB(A) at 10m exactly. It's designed it to comply with the rules.

Well, actually it can play louder but there is a volume knob on it icon_wink.gif.

To get the dB(A) rating of your own stereo, take the peak output at 1m and -10dB for the (A)=average and -10dB for distance.

[This article was edited 3 times, at last 18.05.2011 at 15:10.]
Written on: 18.05.2011 19:06
Ace > The Coffin Camp
Posts: 402
Thanks Saturnus icon_smile.gif haha! Maybe we'll print that on the coffin.

''built in compliance with The Roskilde Festival Camp Codex'' icon_smile.gif

Only problem, we have our 23:59 parties and tour around the campsite during the warmup, and at that time, it's 84dB icon_razz.gif
But it also states that "If you like partying to the max, don't do it in the same spot all week, every night", and that is a problem that we HAVE solved icon_smile.gif
We have had some problems with the C Tower being so close.
They have talked to us about the volume being so high, they couldn't hear their walkie-talkies properly.
But last year, we simply solved that, by turning the coffin 40 degrees away from the tower.
Never heard anything since icon_smile.gif
And even if the coffin plays louder this year than before, we don't play full volume unless there is a big crowd, and that takes away alot of the sound.
And since the quality of the sound is better, the need to strain the speakers isn't that big either.

WOHO! Can't wait to continue the build on friday!
And also, got my ticket today! Super stoked!
And even another thing, I liked the ''coffin''-mention in the Camp Codex! haha


[This article was edited 1 times, at last 18.05.2011 at 19:07.]
Written on: 19.05.2011 11:44
Ace > The Coffin Camp
Posts: 402
Christian wrote:

That is waaay cool, guys. My camp is also planning on living at C like usual and even though you have kept us awake with the coffin a couple of times, it's worth it for the awesomeness of the coffin blaster!

Anyway, I have an idea for the coffin for next year...it may be a bit too much, but it would be seriously bad ass if it worked:

A guitar preamp connected to the amp with a plug for an electric guitar and then let people play some guitar that you guys bring...just something crappy €100 guitar or something...I bet there are even people that will donate something for the project.

Anyway, there are some hardcore guitarists on the festival so this could really bring some moments that you will never forget. icon_smile.gif


you know, we actually did this last year, BEFORE Roskilde.
Was really cool! We had a friend donate us a guitar this year, but havent gotten it sent over yet. We figured we cut it into a coffin-shape aswell! haha!
Would be SO cool to have people pull of guitarsolos on the coffin when we're on tour! icon_smile.gif
Written on: 19.05.2011 13:04
Friedrich Delgado
Posts: 79
Saturnus wrote:

94dB(A) at 10m exactly. It's designed it to comply with the rules.

Well, actually it can play louder but there is a volume knob on it icon_wink.gif.

To get the dB(A) rating of your own stereo, take the peak output at 1m and -10dB for the (A)=average and -10dB for distance.


I appreciate this. In 2006 we had a camp next to us who were playing their cheap techno 24/7, and they were so loud that we could not hear our own music. And they wouldn't cooperate with anyone around them. Thankfully the camp was cleared out by a drug raid later, tztz, somebody must have talked... ;-D
Written on: 19.05.2011 13:21
Saturnus
Posts: 3047
Funny thing is that the Boominator which I built in 2007, several years before they even considered such rules match the 94dB(A)@10m exactly on maximum volume. So the 94dB(A)@10m is actually very loud.

The Coffin Blaster can play a good deal louder than the Boominator with about 3-4dB more in average level but that's just a question of not "taking it to 11". The Coffin Blaster does have much better bass performance and the overall sound quality should be really really good without sounding pressed in any way when just taken to 10.

And that has always been one of my primary concerns: sound quality. There's really no point in having something that plays loud if it sounds like crap when it does. That'll become annoying very fast.

[This article was edited 1 times, at last 19.05.2011 at 13:25.]
Written on: 19.05.2011 21:55
Christian
Posts: 104
Ace > The Coffin Camp wrote:

Christian wrote:

That is waaay cool, guys. My camp is also planning on living at C like usual and even though you have kept us awake with the coffin a couple of times, it's worth it for the awesomeness of the coffin blaster!

Anyway, I have an idea for the coffin for next year...it may be a bit too much, but it would be seriously bad ass if it worked:

A guitar preamp connected to the amp with a plug for an electric guitar and then let people play some guitar that you guys bring...just something crappy €100 guitar or something...I bet there are even people that will donate something for the project.

Anyway, there are some hardcore guitarists on the festival so this could really bring some moments that you will never forget. icon_smile.gif


you know, we actually did this last year, BEFORE Roskilde.
Was really cool! We had a friend donate us a guitar this year, but havent gotten it sent over yet. We figured we cut it into a coffin-shape aswell! haha!
Would be SO cool to have people pull of guitarsolos on the coffin when we're on tour! icon_smile.gif


Haha, nice...maybe I'll swing by and play some AC/DC...if they don't want to perform at Roskilde we'll just have to do it ourselves! icon_wink.gif
Written on: 20.05.2011 15:41
Ace > The Coffin Camp
Posts: 402
All right!
Off to yet another weekend at the build site!
Let me know if you want more updates!
(cause you know I LOVE to show off the coffin! Haha)
Written on: 20.05.2011 17:01
Christian Pawlowski
Posts: 30
Ace > The Coffin Camp wrote:

All right!
Off to yet another weekend at the build site!
Let me know if you want more updates!
(cause you know I LOVE to show off the coffin! Haha)



We want as many updates as possible, from now on until the coffin is finished! icon_biggrin.gif


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