Go Back   Home > Forums > Loudspeakers > Full Range

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 Search this Thread
Old 28th November 2012, 07:17 PM   #101
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: British Columbia
Templates made. I increased the size of Sebastien's drawing, took a screen shot and took it to the repro store. 5 minutes later I had 2 copies exact size.

Facers bought [Sure-Ply 1/4" underlay] and cut to size. 70X70

Back at it later tonight.
Attached Images
File Type: jpg DSC00585.jpg (64.6 KB, 1047 views)
File Type: jpg DSC00586.jpg (88.9 KB, 1028 views)
File Type: jpg DSC00587.jpg (86.8 KB, 1007 views)
__________________
Next stop: Margaritaville
Some of Cal's stuff | Cal Weldon Consulting
  Reply With Quote
Old 28th November 2012, 07:50 PM   #102
xrk971 is online now xrk971  United States
diyAudio Member
 
xrk971's Avatar
 
Join Date: Oct 2012
Location: Virginia
Cal, You move fast and take action! I like that. You could be done with gluing channels tonight and by morning the top cover will have had time to set. Make sure you use lots of weights to clamp the top down for glue to set. I probably had about 70 lbs of weights on mine. Can't wait to see spirals glued in. Thanks for taking photos and sharing.
  Reply With Quote
Old 28th November 2012, 10:50 PM   #103
xrk971 is online now xrk971  United States
diyAudio Member
 
xrk971's Avatar
 
Join Date: Oct 2012
Location: Virginia
Quote:
Originally Posted by Cal Weldon View Post
Templates made. I increased the size of Sebastien's drawing, took a screen shot and took it to the repro store. 5 minutes later I had 2 copies exact size.

Facers bought [Sure-Ply 1/4" underlay] and cut to size. 70X70

Back at it later tonight.
That plywood looks really nice for underlayment that no one sees! What does the quarter inch sureply cost? It looks like it is Birch plywood?
  Reply With Quote
Old 28th November 2012, 11:37 PM   #104
diyAudio Member
 
Join Date: Dec 2010
Location: Coffs Harbour NSW 2450
Whats the benefit of the split horn path on the spiral?
__________________
  Reply With Quote
Old 29th November 2012, 12:24 AM   #105
xrk971 is online now xrk971  United States
diyAudio Member
 
xrk971's Avatar
 
Join Date: Oct 2012
Location: Virginia
To minimize resonance peaks. There are basically 4 different length combos to get 4 different frequencies.
  Reply With Quote
Old 29th November 2012, 12:45 AM   #106
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: British Columbia
Quote:
Originally Posted by xrk971 View Post
You could be done with gluing channels tonight and by morning the top cover will have had time to set.
Uh...thanks for the encouragement but tonight is set aside for cutting the foam core strips, layout and pre cutting, scoring and shaping of the channel pieces so it will just be 'puzzle' assembly next day. I'll keep going as long as I don't get the 'speaker widow' look from SWMBO. I know better than to cross that line. I've taken over the dining room table but she backed down when I said I could do it out in the shop instead. Funny aren't they?
Quote:
Thanks for taking photos and sharing.
Hey, diy is all about sharing, I'm just returning the favour.
__________________
Next stop: Margaritaville
Some of Cal's stuff | Cal Weldon Consulting
  Reply With Quote
Old 29th November 2012, 12:54 AM   #107
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: British Columbia
To answer your question, The underlay, and I'm not sure why they call it that cause it is nicely veneered, was $11 dollar per 4X4 board so I had to buy 4. Still cheaper than buying finished ply where I would need more than 1 sheet.
__________________
Next stop: Margaritaville
Some of Cal's stuff | Cal Weldon Consulting
  Reply With Quote
Old 29th November 2012, 12:56 AM   #108
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: British Columbia
Quote:
Originally Posted by Cal Weldon View Post
To answer your question, The underlay, and I'm not sure why they call it that 'cause it is nicely veneered, was $11 dollar per 4X4 board so I had to buy 4. Still cheaper than buying finished ply where I would need more than 1 sheet.
__________________
Next stop: Margaritaville
Some of Cal's stuff | Cal Weldon Consulting
  Reply With Quote
Old 29th November 2012, 01:05 AM   #109
xrk971 is online now xrk971  United States
diyAudio Member
 
xrk971's Avatar
 
Join Date: Oct 2012
Location: Virginia
Quote:
Originally Posted by Cal Weldon View Post
To answer your question, The underlay, and I'm not sure why they call it that cause it is nicely veneered, was $11 dollar per 4X4 board so I had to buy 4. Still cheaper than buying finished ply where I would need more than 1 sheet.
I have to try this plywood, a 4 x 4 sheet is exactly enough for two of my 20 inch speakers. Speakerwidow ha ha - good one.
  Reply With Quote
Old 29th November 2012, 04:30 AM   #110
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: British Columbia
Speaker widow was in a good mood so I got a start. I found it easier to begin on the inside and spiral out, making sure I waited at each corner to catch up with the next piece so as to give my working room but I made sure I used a full piece at the mouth to cut down on visible seams.
Attached Images
File Type: jpg DSC00595.jpg (82.4 KB, 994 views)
File Type: jpg DSC00596.jpg (72.3 KB, 964 views)
File Type: jpg DSC00600.jpg (82.0 KB, 360 views)
File Type: jpg DSC00604.jpg (96.8 KB, 479 views)
__________________
Next stop: Margaritaville
Some of Cal's stuff | Cal Weldon Consulting
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Speaker damping: Foam or expanding foam akunec Multi-Way 4 11th February 2014 01:14 AM
Replace speaker foam with this odd material? flyingsquirrelman Subwoofers 7 25th July 2010 01:32 PM
concrete board for enclosures? alandarkdale Multi-Way 6 31st March 2007 08:35 AM
Foam core construction for subwoofers morbo Subwoofers 19 30th August 2005 08:09 PM
speaker foam dave k Multi-Way 2 24th June 2003 05:05 AM


New To Site? Need Help?

All times are GMT. The time now is 02:37 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2