Cutting piezos and not your fingers.

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mlkras
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Re: Cutting piezos and not your fingers.

#31 Post by mlkras » Sun Aug 16, 2009 5:20 pm

DaveK wrote:Thanks. I hesitate to talk about that jig in a thread about saw safety, but I'm very happy with it. The reason I hesitate is that I hold the tweeters in the jig with my fingers as I slide it across the blade. That puts my fingers within 2 inches of the blade. Needless to say, I'm very careful.

Image
DaveK, that is a very nice jig. I think that Rockler sells some lever locking hold down clamps intended to secure work on a bench that perhaps you could use to hold the tweeters in place while you are cutting. The top of the clamp would fit on the back of the tweeter.

bzb
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Re: Cutting piezos and not your fingers.

#32 Post by bzb » Fri Jan 29, 2010 10:25 pm

I'm confused on the lug thing. In the plans, it doesn't reference any issue with the lugs getting in the way, and certainly doesn't appear that they get in the way in the pictures of the glue-up. Am I missing something here?

All tweeters are cut on the lug end, so when assembled the lugs all face each other.

^^ has this changed? It says this for both my OT12 and DR plans...
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

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DJPhatman
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Re: Cutting piezos and not your fingers.

#33 Post by DJPhatman » Sat Jan 30, 2010 1:34 am

Some of the builders have taken to "reversing" every other piezo in an array, meaning every other one has the "lug" pointing in the opposite direction.
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

bzb
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Re: Cutting piezos and not your fingers.

#34 Post by bzb » Sat Jan 30, 2010 8:20 am

Still not seeing how the lugs would get in the way, even when cut on the other side. Maybe I'll understand better when my piezos arrive.
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

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LelandCrooks
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Re: Cutting piezos and not your fingers.

#35 Post by LelandCrooks » Sat Jan 30, 2010 9:37 am

bzb wrote:Still not seeing how the lugs would get in the way, even when cut on the other side. Maybe I'll understand better when my piezos arrive.
Build a DR array, and you'll understand
If it's too loud, you're even older than me! Like me.
http://www.speakerhardware.com

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David Carter
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Re: Cutting piezos and not your fingers.

#36 Post by David Carter » Sat Jan 30, 2010 10:59 am

LelandCrooks wrote:
bzb wrote:Still not seeing how the lugs would get in the way, even when cut on the other side. Maybe I'll understand better when my piezos arrive.
Build a DR array, and you'll understand
+1!
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)

bzb
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Re: Cutting piezos and not your fingers.

#37 Post by bzb » Sat Jan 30, 2010 11:13 am

Gotcha. I only looked at the DR200 plans.
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

bzb
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Re: Cutting piezos and not your fingers.

#38 Post by bzb » Thu Feb 04, 2010 10:34 pm

OK one last question on the 45 degree cuts... What's the measurement from the right edge to the short edge of the 45? I'm pretty sure I have the jig correct... but I don't want to destroy two piezos to find out!

Edit: OK, it's in the OT12 plans.

Can I do this to myself?

:iitp:
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

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LelandCrooks
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Re: Cutting piezos and not your fingers.

#39 Post by LelandCrooks » Fri Feb 05, 2010 9:33 am

bzb wrote:Can I do this to myself?
:iitp:
Only til the hair starts to grow on your palms, or your vision starts to blur.
If it's too loud, you're even older than me! Like me.
http://www.speakerhardware.com

bzb
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Re: Cutting piezos and not your fingers.

#40 Post by bzb » Fri Feb 05, 2010 9:28 pm

LelandCrooks wrote:
bzb wrote:Can I do this to myself?
:iitp:
Only til the hair starts to grow on your palms, or your vision starts to blur.
Damn, I'm already past the limit. :lol:
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

slotech88
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Re: Cutting piezos and not your fingers.

#41 Post by slotech88 » Mon Jul 05, 2010 5:54 am

hartley can you make a plan of that jig or at least the dimensions.
thanks

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Harley
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Re: Cutting piezos and not your fingers.

#42 Post by Harley » Tue Jul 06, 2010 2:54 am

slotech88 wrote:hartley can you make a plan of that jig or at least the dimensions.
thanks
Capital H,
No T,
a question mark, and
a please; would grease the wheels, :cop:

BUT,

That jig is made to my table saw and the bits and pieces I had available. It would be different for anyone else's.

The dimensions are governed by the piezo cut dimensions and the size of the piezos in any case.

The various camera angles provide you all the detail you need really.
ImageSemi-retired: Former Australia and New Zealand Authorised BFM cab builder.

WB
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Re: Cutting piezos and not your fingers.

#43 Post by WB » Tue Jul 06, 2010 4:04 pm

Harley wrote:
slotech88 wrote:hartley can you make a plan of that jig or at least the dimensions.
thanks
Capital H,
No T,
a question mark, and
a please; would grease the wheels, :cop:

BUT,

That jig is made to my table saw and the bits and pieces I had available. It would be different for anyone else's.

The dimensions are governed by the piezo cut dimensions and the size of the piezos in any case.

The various camera angles provide you all the detail you need really.
Plus one to all of the above.
Tomorrow I'm going to stop procrastinating - WB

bzb
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Location: Atlanta, GA

Re: Cutting piezos and not your fingers.

#44 Post by bzb » Wed Jul 07, 2010 8:45 am

Is War Office Whipping Boy acceptable?

If you need to go off plans, Bill offers the piezo jig in the panel jig set for two bucks.

http://billfitzmaurice.net/PanelJig.html
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

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Harley
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Location: Christchurch, New Zealand - Authorised BFM Cab Builder

Re: Cutting piezos and not your fingers.

#45 Post by Harley » Wed Jul 07, 2010 4:27 pm

bzb wrote:Is War Office Whipping Boy acceptable?
Only with leather boots and net stockings on :mrgreen:
ImageSemi-retired: Former Australia and New Zealand Authorised BFM cab builder.

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