Jig for trimming plastic stackable corners?
- David Carter
- Posts: 1824
- Joined: Mon Jan 01, 2007 7:20 am
- Location: (East) Tennessee, USA
Re: Jig for trimming plastic stackable corners?
No PL, just screws. I'll second Bill's question... Why would you only have screws on one side on a Titan?
Dave
Built:
- Omni 10 (S2010 + piezo array)
- 2 x DR250 (DL II 2510 + melded array)
- 2 x Titan 39 (BP102 - 14"W)
- 2 x Titan 39 (3012LF - 20"W)
- 4 x DR200 (Delta Pro 8B + melded array)
Built:
- Omni 10 (S2010 + piezo array)
- 2 x DR250 (DL II 2510 + melded array)
- 2 x Titan 39 (BP102 - 14"W)
- 2 x Titan 39 (3012LF - 20"W)
- 4 x DR200 (Delta Pro 8B + melded array)
- Harley
- Posts: 5758
- Joined: Mon May 08, 2006 2:45 pm
- Location: Christchurch, New Zealand - Authorised BFM Cab Builder
Re: Jig for trimming plastic stackable corners?
My guess is that the screws are used on the 'first side' to pull the panels flat onto the side until all the panels are in place and braces positioned, glued and nailed in.David Carter wrote:No PL, just screws. I'll second Bill's question... Why would you only have screws on one side on a Titan?
Assuming the panels have been accurately cut for width, then strictly speaking now screws ( or brads ) may be required to attach the second side.
However my faith in how long PL will last over the years is little so therefore I strategically screw both sides and use brads in between the screws.
- LelandCrooks
- Posts: 7242
- Joined: Thu May 04, 2006 9:36 am
- Location: Midwest/Kansas/Speaker Nirvana
- Contact:
Re: Jig for trimming plastic stackable corners?
I don't think you need to sweat it. I know you had some adhesive problems with other brands in NZ. PL has been widely used here for a very long time in the construction industry, and OSI is a premiere supplier of specialty adhesives to industry. They're a big player.Harley wrote:However my faith in how long PL will last over the years is little
If it's too loud, you're even older than me! Like me.
http://www.speakerhardware.com
http://www.speakerhardware.com
- David Carter
- Posts: 1824
- Joined: Mon Jan 01, 2007 7:20 am
- Location: (East) Tennessee, USA
Re: Jig for trimming plastic stackable corners?
One of us has completely misunderstood the question that was asked. It was probably me. Since he was talking about plastic corners, I thought he was saying that the plastic corner would only have screws on one side of it, and that the second side (of the plastic corner) would not. Didn't make any sense to me, so that's why I was asking a follow up question.Harley wrote:My guess is that the screws are used on the 'first side' to pull the panels flat onto the side until all the panels are in place and braces positioned, glued and nailed in.David Carter wrote:No PL, just screws. I'll second Bill's question... Why would you only have screws on one side on a Titan?
Assuming the panels have been accurately cut for width, then strictly speaking now screws ( or brads ) may be required to attach the second side.
Dave
Built:
- Omni 10 (S2010 + piezo array)
- 2 x DR250 (DL II 2510 + melded array)
- 2 x Titan 39 (BP102 - 14"W)
- 2 x Titan 39 (3012LF - 20"W)
- 4 x DR200 (Delta Pro 8B + melded array)
Built:
- Omni 10 (S2010 + piezo array)
- 2 x DR250 (DL II 2510 + melded array)
- 2 x Titan 39 (BP102 - 14"W)
- 2 x Titan 39 (3012LF - 20"W)
- 4 x DR200 (Delta Pro 8B + melded array)
Re: Jig for trimming plastic stackable corners?
I just meant the plastic corners
The cab construction is complete!
I'm just a little confused as to what to do with the arrangement of the corners, possibly due to me selecting recessed casters on a slim cab.
Picture one shows the horizontal configuration. Obviously a bad selection, less than half of the corner would remain.
Picture two shows vertical alignment. Can use the router to trim it flush and three screws would be used.
However, to match it on the opposite end (the bottom of the horn mouth) the majority of the corner would be cut off, leaving screws only on one side of the corner.

I'm just a little confused as to what to do with the arrangement of the corners, possibly due to me selecting recessed casters on a slim cab.
Picture one shows the horizontal configuration. Obviously a bad selection, less than half of the corner would remain.
Picture two shows vertical alignment. Can use the router to trim it flush and three screws would be used.
However, to match it on the opposite end (the bottom of the horn mouth) the majority of the corner would be cut off, leaving screws only on one side of the corner.
Bobby Shively
Purveyor of fine aged hip hop
Traktor S4 - Vestax VCI-100 - TTX - MOTU Ultralite - Yamaha 01V
Built:
T39 13" BP102, 24" 3012LF - AT - OT12 2512 - SLA Pro - T24 - Jack 10
Powered by XTi 1000 & 2000
Purveyor of fine aged hip hop
Traktor S4 - Vestax VCI-100 - TTX - MOTU Ultralite - Yamaha 01V
Built:
T39 13" BP102, 24" 3012LF - AT - OT12 2512 - SLA Pro - T24 - Jack 10
Powered by XTi 1000 & 2000
Re: Jig for trimming plastic stackable corners?
Oh friggin duh.
After looking at the pictures, I just need to turn the corners so they are lengthwise along the bottom and top.
Need a brain fart smiley. Sorry ya'll.

Need a brain fart smiley. Sorry ya'll.
Bobby Shively
Purveyor of fine aged hip hop
Traktor S4 - Vestax VCI-100 - TTX - MOTU Ultralite - Yamaha 01V
Built:
T39 13" BP102, 24" 3012LF - AT - OT12 2512 - SLA Pro - T24 - Jack 10
Powered by XTi 1000 & 2000
Purveyor of fine aged hip hop
Traktor S4 - Vestax VCI-100 - TTX - MOTU Ultralite - Yamaha 01V
Built:
T39 13" BP102, 24" 3012LF - AT - OT12 2512 - SLA Pro - T24 - Jack 10
Powered by XTi 1000 & 2000
- David Carter
- Posts: 1824
- Joined: Mon Jan 01, 2007 7:20 am
- Location: (East) Tennessee, USA
Re: Jig for trimming plastic stackable corners?
bzb wrote:Oh friggin duh.After looking at the pictures, I just need to turn the corners so they are lengthwise along the bottom and top.

Dave
Built:
- Omni 10 (S2010 + piezo array)
- 2 x DR250 (DL II 2510 + melded array)
- 2 x Titan 39 (BP102 - 14"W)
- 2 x Titan 39 (3012LF - 20"W)
- 4 x DR200 (Delta Pro 8B + melded array)
Built:
- Omni 10 (S2010 + piezo array)
- 2 x DR250 (DL II 2510 + melded array)
- 2 x Titan 39 (BP102 - 14"W)
- 2 x Titan 39 (3012LF - 20"W)
- 4 x DR200 (Delta Pro 8B + melded array)
Re: Jig for trimming plastic stackable corners?
To follow up on the Phatman's suggestion: that's what I did. I'll see if I can get a pic of the jig posted. Corners looking great on the O10.5DJPhatman wrote:Anton, IIRC you have a router. Use it, with a bottom bearing pattern following bit to trim off the excess. Finish the corner with a sharp knife.
I don't think PL adheres at all on the plastic surface, so glueing where screws are not an option is not going to work.
Re: Jig for trimming plastic stackable corners?
You might also consider metal corners. I found I broke at least one PE plastic corner per gig. Leland says he has some better ones, but I switched to metal before he announced them so I haven't tried his.
Re: Jig for trimming plastic stackable corners?
Just following up on this one. I did indeed have to cut the corners in half - on the two bottom ones next to the wheels. Oh well.
They've been thrown in the back of the Tahoe a couple times and seem to be holding up with only two screws... so far.
They've been thrown in the back of the Tahoe a couple times and seem to be holding up with only two screws... so far.
Bobby Shively
Purveyor of fine aged hip hop
Traktor S4 - Vestax VCI-100 - TTX - MOTU Ultralite - Yamaha 01V
Built:
T39 13" BP102, 24" 3012LF - AT - OT12 2512 - SLA Pro - T24 - Jack 10
Powered by XTi 1000 & 2000
Purveyor of fine aged hip hop
Traktor S4 - Vestax VCI-100 - TTX - MOTU Ultralite - Yamaha 01V
Built:
T39 13" BP102, 24" 3012LF - AT - OT12 2512 - SLA Pro - T24 - Jack 10
Powered by XTi 1000 & 2000
Re: Jig for trimming plastic stackable corners?
I use the black DAP® DYNAFLEX 230® Premium Indoor/Outdoor Sealant Leland used to sell. Just enough to hold the corners to the cab.
I know money often seals the deal, but seriously, quality is an investment, not an expense... Grant Bunter
Accept the fact that airtight and well-braced are more important than pretty on the inside. Bill Fitzmaurice
Accept the fact that airtight and well-braced are more important than pretty on the inside. Bill Fitzmaurice
Re: Jig for trimming plastic stackable corners?
I sat my corners on, then ran a pencil on the inside lip (that hangs over.) Then just cut it off with tin snips.
Built:
2 OT12's 2512 CD
2 OT12's 2512 Melded Array
4 Titan 39's 30" 3012LF
4 Titan 39's 20" 3012LF
6 Wedgehorn 8's
1 Wedgehorn10
2 AutoTuba's 18" w/MCM 8"
https://www.facebook.com/pages/LSW-Lana ... 080?ref=hl
2 OT12's 2512 CD
2 OT12's 2512 Melded Array
4 Titan 39's 30" 3012LF
4 Titan 39's 20" 3012LF
6 Wedgehorn 8's
1 Wedgehorn10
2 AutoTuba's 18" w/MCM 8"
https://www.facebook.com/pages/LSW-Lana ... 080?ref=hl
Re: Jig for trimming plastic stackable corners?
Here's my little jig. I clamp it to the work bench, install a corner, then one carefull pass with router and top bearing router bit.



And here's a cut down corner, perfect fit on 12mm (1/2") ply and allows the access panel to be opened.

It's pretty easy and straight forward. Yet, if Leland were on my continent I'd get the smaller chevron corners from him.



And here's a cut down corner, perfect fit on 12mm (1/2") ply and allows the access panel to be opened.

It's pretty easy and straight forward. Yet, if Leland were on my continent I'd get the smaller chevron corners from him.
-
- Posts: 345
- Joined: Mon Jan 25, 2010 1:37 am
- Location: Appleton
Re: Jig for trimming plastic stackable corners?
I painted the cab, black concrete floor paint. More of a dark grey actually. Not the corners though. Does it look like painted in the pic? It's a plain black plastic stackable corner.