Go Back   Home > Forums > >

The making of: The Two Towers (a 25 driver Full Range line array)
The making of: The Two Towers (a 25 driver Full Range line array)
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools
Old 12th September 2013, 12:16 PM   #31
wesayso is offline wesayso  Netherlands
diyAudio Member
 
wesayso's Avatar
 
Join Date: Jul 2007
Back on track...

The two towers standing on their own. Still a lot of sanding to do on both towers but it's starting to look like something real.
Click the image to open in full size.
Another feature visible in this picture is that I left the ability to rotate the speaker in any direction wanted. The speaker is almost turned 180 degrees .
That should help with toe in/out experiments.
In some more detail:
Click the image to open in full size.
(don't mind the missing bolts on the base, they're there )

Last edited by wesayso; 12th September 2013 at 12:25 PM.
  Reply With Quote
Old 13th September 2013, 12:14 AM   #32
Jaimo is offline Jaimo  Canada
diyAudio Member
 
Join Date: Oct 2005
Are you going Nude plywood + stain or will you attempt to veneer?
  Reply With Quote
Old 13th September 2013, 12:21 AM   #33
KLBIrd is offline KLBIrd  United States
diyAudio Member
 
KLBIrd's Avatar
 
Join Date: Jan 2009
Location: Lincoln, Missouri
The making of: The Two Towers (a 25 driver Full Range line array)
I like that rotation feature. Is that a commercial product or custom design?
  Reply With Quote
Old 13th September 2013, 12:45 AM   #34
wesayso is offline wesayso  Netherlands
diyAudio Member
 
wesayso's Avatar
 
Join Date: Jul 2007
I'm going for nude plywood with stain covered with clear polyurethane. Plywood is hard to stain though. Takes some effort, hope my tests have shown me how to do it right.

That rotational base is water yet cut from my drawings, so I guess that makes it custom design. I wanted to be able to play with positioning without rotating the feet. It's not equipped for changes on the fly with the bolts facing downward but I'll manage.
  Reply With Quote
Old 13th September 2013, 01:03 AM   #35
sakellogg is offline sakellogg  United States
diyAudio Member
 
sakellogg's Avatar
 
Join Date: Nov 2008
Location: dixon ill
uhm..... holy cow! you are my new hero!
__________________
I'm not crazy, my mother had me tested
  Reply With Quote
Old 13th September 2013, 01:11 AM   #36
xrk971 is offline xrk971  United States
Got Foam?
diyAudio Member
 
xrk971's Avatar
 
Join Date: Oct 2012
Location: Metro DC (Virginia)
The making of: The Two Towers (a 25 driver Full Range line array)
Quote:
Originally Posted by wesayso View Post
I'm going for nude plywood with stain covered with clear polyurethane. Plywood is hard to stain though. Takes some effort, hope my tests have shown me how to do it right.

That rotational base is water yet cut from my drawings, so I guess that makes it custom design. I wanted to be able to play with positioning without rotating the feet. It's not equipped for changes on the fly with the bolts facing downward but I'll manage.
Put a set screw on the side edge of the base to clamp a round disc mounted to speaker with large hole for disc in base. Then you can adjust on the fly.
  Reply With Quote
Old 13th September 2013, 03:19 AM   #37
Jaimo is offline Jaimo  Canada
diyAudio Member
 
Join Date: Oct 2005
Quote:
Originally Posted by wesayso View Post
I'm going for nude plywood with stain covered with clear polyurethane. Plywood is hard to stain though. Takes some effort, hope my tests have shown me how to do it right.

That rotational base is water yet cut from my drawings, so I guess that makes it custom design. I wanted to be able to play with positioning without rotating the feet. It's not equipped for changes on the fly with the bolts facing downward but I'll manage.
I am a huge fan of exposed plywood but it is difficult to get a good finish. Consider filling the ply with some kind of wood filler compound before sanding.

The other challenge is getting the burn marks out. I ended up using a dark stain on my TT plinth in order to hide the burns.
  Reply With Quote
Old 13th September 2013, 09:05 AM   #38
wesayso is offline wesayso  Netherlands
diyAudio Member
 
wesayso's Avatar
 
Join Date: Jul 2007
Quote:
Originally Posted by Jaimo View Post
I am a huge fan of exposed plywood but it is difficult to get a good finish. Consider filling the ply with some kind of wood filler compound before sanding.

The other challenge is getting the burn marks out. I ended up using a dark stain on my TT plinth in order to hide the burns.
I had saved saw dust and wanted to mix that with wood glue to fill the pinholes etc. But I noticed on test pieces the glue would mess up the stain.
So I went with a dark wood filler .
I'm going for a dark stain as well. The burn marks are all gone though after a week of sanding, pfew....
I do hope to get an even finish. My girlfriend wanted black speakers, they are supposed to be black she said. But I just couldn't do that after seeing how nice the ply looked. It will be a dark brown color, to go with our brasil brown oak floor. I hope to anodize the aluminum black. The feet will be left bare aluminum for now and polished.

The biggest challenge will be to clean the garage prior to paint. You don't want to know how much saw dust is everywhere. I'm considering building a tent from plastic for the paint job.

Last edited by wesayso; 13th September 2013 at 09:07 AM.
  Reply With Quote
Old 13th September 2013, 10:05 AM   #39
wesayso is offline wesayso  Netherlands
diyAudio Member
 
wesayso's Avatar
 
Join Date: Jul 2007
Quote:
Originally Posted by xrk971 View Post
Put a set screw on the side edge of the base to clamp a round disc mounted to speaker with large hole for disc in base. Then you can adjust on the fly.
I didn't dare to only trust a set screw with towers 2 m 22 high .
Hopefully, positioning them will be a one time deal.

Last edited by wesayso; 13th September 2013 at 10:08 AM.
  Reply With Quote
Old 13th September 2013, 11:26 AM   #40
graaf is offline graaf  Poland
diyAudio Member
 
graaf's Avatar
 
Join Date: Jun 2007
nice project, pure overkill

Are You going to taper the line in any way (power, frequency)? How are You going to equalize them? Passively, line level, analog, digital?
__________________
"high phooey and hystereo" - Yascha Heifetz
  Reply With Quote

Reply


The making of: The Two Towers (a 25 driver Full Range line array)Hide this!Advertise here!
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Full range line array inrank Full Range 43 16th November 2017 08:25 AM
Full range line array in a tube carpenter Full Range 44 7th January 2014 03:19 PM
full range driver bipole line array idea. fazman Multi-Way 2 7th January 2006 04:36 PM
full range driver bipole line array idea. fazman Full Range 1 6th January 2006 12:21 PM
Full-range line array? mazeroth Full Range 20 1st November 2004 04:47 PM


New To Site? Need Help?

All times are GMT. The time now is 05:03 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki