Home » Simpit Discussion » simpits-tech » [simpits-tech] Display walk-around.
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| Re: [simpits-tech] Display walk-around. [message #2247 is a reply to message #2246 ] |
Mon, 06 June 2011 16:25   |
 Rene Koopman
Messages: 4
Registered: June 2011 |
Junior Member |
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Test
-----Oorspronkelijk bericht-----
Van: simpits-tech-bounces@simpits.org [mailto:simpits-tech-bounces@simpits.org] Namens Gene Buckle
Verzonden: maandag 6 juni 2011 20:36
Aan: Simulator Cockpit Builder's List
Onderwerp: Re: [simpits-tech] Display walk-around.
On Mon, 6 Jun 2011, David C. Allen wrote:
> Gene and Company
>
> Great Work!
Thanks!
g.
--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.simpits.org/geneb - The Me-109F/X Project
ScarletDME - The red hot Data Management Environment A Multi-Value database for the masses, not the classes.
http://www.scarletdme.org - Get it _today_!
Political correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.
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| Re: [simpits-tech] Display walk-around. [message #2248 is a reply to message #2247 ] |
Mon, 06 June 2011 16:32 |
Rick Davis
Messages: 128
Registered: January 2009 |
Senior Member |
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failed ...
:)
----- Original Message -----
From: "Rene Koopman" <rene@ejection.nl>
To: "Simulator Cockpit Builder's List" <simpits-tech@simpits.org>
Sent: Monday, June 06, 2011 8:25 PM
Subject: Re: [simpits-tech] Display walk-around.
> Test
>
> -----Oorspronkelijk bericht-----
> Van: simpits-tech-bounces@simpits.org
> [mailto:simpits-tech-bounces@simpits.org] Namens Gene Buckle
> Verzonden: maandag 6 juni 2011 20:36
> Aan: Simulator Cockpit Builder's List
> Onderwerp: Re: [simpits-tech] Display walk-around.
>
> On Mon, 6 Jun 2011, David C. Allen wrote:
>
>> Gene and Company
>>
>> Great Work!
>
> Thanks!
>
> g.
>
> --
> Proud owner of F-15C 80-0007
> http://www.f15sim.com - The only one of its kind.
> http://www.simpits.org/geneb - The Me-109F/X Project
>
> ScarletDME - The red hot Data Management Environment A Multi-Value
> database for the masses, not the classes.
> http://www.scarletdme.org - Get it _today_!
>
> Political correctness is a doctrine, fostered by a delusional, illogical
> minority, and rabidly promoted by an unscrupulous mainstream media, which
> holds forth the proposition that it is entirely possible to pick up a turd
> by the clean end.
> _______________________________________________
> Simpits-tech mailing list
> Simpits-tech@simpits.org
> http://www.simpits.org/mailman/listinfo/simpits-tech
> To unsubscribe, please see the instructions at the bottom of the above
> page. Thanks!
> _______________________________________________
> Simpits-tech mailing list
> Simpits-tech@simpits.org
> http://www.simpits.org/mailman/listinfo/simpits-tech
> To unsubscribe, please see the instructions at the bottom of the above
> page. Thanks!
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| Re: [simpits-tech] Display walk-around. [message #2249 is a reply to message #2248 ] |
Mon, 06 June 2011 16:38 |
Rene Koopman
Messages: 4
Registered: June 2011 |
Junior Member |
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Yep must been.
Finaly up to post again after so many years.
Been lurking to long.
-----Oorspronkelijk bericht-----
Van: simpits-tech-bounces@simpits.org [mailto:simpits-tech-bounces@simpits.org] Namens Rick Davis
Verzonden: dinsdag 7 juni 2011 1:33
Aan: Simulator Cockpit Builder's List
Onderwerp: Re: [simpits-tech] Display walk-around.
failed ...
:)
----- Original Message -----
From: "Rene Koopman" <rene@ejection.nl>
To: "Simulator Cockpit Builder's List" <simpits-tech@simpits.org>
Sent: Monday, June 06, 2011 8:25 PM
Subject: Re: [simpits-tech] Display walk-around.
> Test
>
> -----Oorspronkelijk bericht-----
> Van: simpits-tech-bounces@simpits.org
> [mailto:simpits-tech-bounces@simpits.org] Namens Gene Buckle
> Verzonden: maandag 6 juni 2011 20:36
> Aan: Simulator Cockpit Builder's List
> Onderwerp: Re: [simpits-tech] Display walk-around.
>
> On Mon, 6 Jun 2011, David C. Allen wrote:
>
>> Gene and Company
>>
>> Great Work!
>
> Thanks!
>
> g.
>
> --
> Proud owner of F-15C 80-0007
> http://www.f15sim.com - The only one of its kind.
> http://www.simpits.org/geneb - The Me-109F/X Project
>
> ScarletDME - The red hot Data Management Environment A Multi-Value
> database for the masses, not the classes.
> http://www.scarletdme.org - Get it _today_!
>
> Political correctness is a doctrine, fostered by a delusional, illogical
> minority, and rabidly promoted by an unscrupulous mainstream media, which
> holds forth the proposition that it is entirely possible to pick up a turd
> by the clean end.
> _______________________________________________
> Simpits-tech mailing list
> Simpits-tech@simpits.org
> http://www.simpits.org/mailman/listinfo/simpits-tech
> To unsubscribe, please see the instructions at the bottom of the above
> page. Thanks!
> _______________________________________________
> Simpits-tech mailing list
> Simpits-tech@simpits.org
> http://www.simpits.org/mailman/listinfo/simpits-tech
> To unsubscribe, please see the instructions at the bottom of the above
> page. Thanks!
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| Re: [simpits-tech] Display walk-around. [message #2251 is a reply to message #2250 ] |
Tue, 07 June 2011 05:35 |
Gene Buckle
Messages: 1083
Registered: January 2009 |
Senior Member
Administrator |
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On Tue, 7 Jun 2011, bjones@pipecomp.com.au wrote:
> Hey Gene,
>
> Ever thought about tossing the shop vac in the corner and using a quiet
> aircon compressor to "pull the vac" on the mylar sheet ??
>
> It would be super quiet.
>
Ben, the shop vac will be pretty far away from the simulator when it's
done - I may also isolate it in a muffle box of some kind. The bypass box
will be located next to the shop vac so you won't hear the bleed air
either. I'm going to try a 20' cable between the Arduino & the sensor
port on the mirror to see how it goes. I don't want to go too far or I
risk killing the input channels on the Arduino due to line impedance.
I could also go the other way and have the bypass box near the mirror, but
in a muffled housing that would damp out the sound.
Wayne's setup will have the advantage of piping the vacuum source through
a wall (the shop vac will be in his garage) so he won't have to go to the
extremes I will in order to muffle the noise.
The current setup requires nearly the full draw of the Fein Turbo III dust
collector that I'm using and even with my 60gal air compressor going full
tilt, I can't approach that amount of volume. The Fein will pull a 105"
water column which is roughly equivalent to about 8in HG.
g.
--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.simpits.org/geneb - The Me-109F/X Project
ScarletDME - The red hot Data Management Environment
A Multi-Value database for the masses, not the classes.
http://www.scarletdme.org - Get it _today_!
Political correctness is a doctrine, fostered by a delusional, illogical
minority, and rabidly promoted by an unscrupulous mainstream media, which
holds forth the proposition that it is entirely possible to pick up a turd
by the clean end.
_______________________________________________
Simpits-tech mailing list
Simpits-tech@simpits.org
http://www.simpits.org/mailman/listinfo/simpits-tech
To unsubscribe, please see the instructions at the bottom of the above page. Thanks!
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| Re: [simpits-tech] Display walk-around. [message #2253 is a reply to message #2252 ] |
Tue, 07 June 2011 07:17 |
Gene Buckle
Messages: 1083
Registered: January 2009 |
Senior Member
Administrator |
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On Tue, 7 Jun 2011, Geert Rolf wrote:
>
>
> Two new marketing spin-offs:
> -1- Collimated BBQs
> -2- Vacuum cleaners that closely sound like CFM-56 7Bxx
> (or P&W, RR, GE ... your choice)
>
Hehehe. I checked the specs earlier today and the Fein is only putting out
about 58db.
I think later this summer it might be worth it to try melting steel with
that mirror. :)
g.
--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.simpits.org/geneb - The Me-109F/X Project
ScarletDME - The red hot Data Management Environment
A Multi-Value database for the masses, not the classes.
http://www.scarletdme.org - Get it _today_!
Political correctness is a doctrine, fostered by a delusional, illogical
minority, and rabidly promoted by an unscrupulous mainstream media, which
holds forth the proposition that it is entirely possible to pick up a turd
by the clean end.
_______________________________________________
Simpits-tech mailing list
Simpits-tech@simpits.org
http://www.simpits.org/mailman/listinfo/simpits-tech
To unsubscribe, please see the instructions at the bottom of the above page. Thanks!
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| Re: [simpits-tech] Display walk-around. [message #2255 is a reply to message #2254 ] |
Wed, 08 June 2011 06:31 |
Gene Buckle
Messages: 1083
Registered: January 2009 |
Senior Member
Administrator |
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On Wed, 8 Jun 2011, Brian Sikkema wrote:
>
>> The current setup requires nearly the full draw of the Fein Turbo III dust
>> collector that I'm using and even with my 60gal air compressor going full
>> tilt, I can't approach that amount of volume. The Fein will pull a 105"
>> water column which is roughly equivalent to about 8in HG.
> Just spitballing here, but IIRC there's a fair amount of space behind
> the mirror, no? It seems if you could reduce that volume that maybe your
> vacuum requirements would be eased.
>
> Just thinking about our sim and how the mirror is set up, and the
> backing behind it matches the shape of the mirror pretty closely. I'm
> sure there are multiple reasons, but it stands to reason that one of
> them is to minimize the amount of volume you're drawing the vacuum on.
>
It's not so much the volume as it is the vacuum required to stretch the
Mylar in the desired shape. Commercial systems have a smaller space
because they build the Mylar framework as a single monolithic assembly
that is perfectly air tight. They can use a much smaller vacuum inlet
that feeds a much lower CFM, but much higher draw vacuum pump. Because
our system is very (comparatively) "leaky", it takes a pretty stout CFM
rating to keep the mirror formed properly, but not that much actual draw
(if that makes any sense). The max the Fein can pull is about 7.7PSI,
which in the world of vacuum pumps is pretty weak. The tiny vacuum pump I
bought to test with can pull 25 inHG (Fein can do about 8 inHG) or roughly
12psi. Unfortunately the small vacuum pump has such a low CFM rating that
it can't overcome the system losses AND hold the mirror shape.
We're going to be adding reinforcing ribs to the frame on Saturday to
avoid deforming the back and we'll do some caulking & adjusting at that
point to drop the losses as best we can.
If I could afford it, I'd just build one out of fiberglass. That would be
a pretty expensive undertaking though - especially when working with a
plug mold that size. :)
g.
--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.simpits.org/geneb - The Me-109F/X Project
ScarletDME - The red hot Data Management Environment
A Multi-Value database for the masses, not the classes.
http://www.scarletdme.org - Get it _today_!
Political correctness is a doctrine, fostered by a delusional, illogical
minority, and rabidly promoted by an unscrupulous mainstream media, which
holds forth the proposition that it is entirely possible to pick up a turd
by the clean end.
_______________________________________________
Simpits-tech mailing list
Simpits-tech@simpits.org
http://www.simpits.org/mailman/listinfo/simpits-tech
To unsubscribe, please see the instructions at the bottom of the above page. Thanks!
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| Re: [simpits-tech] Display walk-around. [message #2256 is a reply to message #2255 ] |
Wed, 08 June 2011 07:29 |
cyplesma
Messages: 18
Registered: January 2009 |
Junior Member |
|
|
On Wed, 8 Jun 2011, Brian Sikkema wrote:
>
>> The current setup requires nearly the full draw of the Fein Turbo III dust
>> collector that I'm using and even with my 60gal air compressor going full
>> tilt, I can't approach that amount of volume. The Fein will pull a 105"
>> water column which is roughly equivalent to about 8in HG.
> Just spitballing here, but IIRC there's a fair amount of space behind
> the mirror, no? It seems if you could reduce that volume that maybe your
> vacuum requirements would be eased.
>
> Just thinking about our sim and how the mirror is set up, and the
> backing behind it matches the shape of the mirror pretty closely. I'm
> sure there are multiple reasons, but it stands to reason that one of
> them is to minimize the amount of volume you're drawing the vacuum on.
>
It's not so much the volume as it is the vacuum required to stretch the
Mylar in the desired shape. Commercial systems have a smaller space
because they build the Mylar framework as a single monolithic assembly
that is perfectly air tight. They can use a much smaller vacuum inlet
that feeds a much lower CFM, but much higher draw vacuum pump. Because
our system is very (comparatively) "leaky", it takes a pretty stout CFM
rating to keep the mirror formed properly, but not that much actual draw
(if that makes any sense). The max the Fein can pull is about 7.7PSI,
which in the world of vacuum pumps is pretty weak. The tiny vacuum pump I
bought to test with can pull 25 inHG (Fein can do about 8 inHG) or roughly
12psi. Unfortunately the small vacuum pump has such a low CFM rating that
it can't overcome the system losses AND hold the mirror shape.
We're going to be adding reinforcing ribs to the frame on Saturday to
avoid deforming the back and we'll do some caulking & adjusting at that
point to drop the losses as best we can.
If I could afford it, I'd just build one out of fiberglass. That would be
a pretty expensive undertaking though - especially when working with a
plug mold that size. :)
g.
How about using fiberglass with this method:
http://www.rqriley.com/frp-foam.htm
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| Re: [simpits-tech] Display walk-around. [message #2257 is a reply to message #2256 ] |
Wed, 08 June 2011 07:34 |
Gene Buckle
Messages: 1083
Registered: January 2009 |
Senior Member
Administrator |
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On Wed, 8 Jun 2011, cyplesma@aol.com wrote:
> If I could afford it, I'd just build one out of fiberglass. That would be
> a pretty expensive undertaking though - especially when working with a
> plug mold that size. :)
>
> g.
>
>
> How about using fiberglass with this method:
>
> http://www.rqriley.com/frp-foam.htm
>
If I'm going to make the investment in materials and know-how to build one
out of fiberglass, I'm going to make more than just one or two. :)
g.
--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.simpits.org/geneb - The Me-109F/X Project
ScarletDME - The red hot Data Management Environment
A Multi-Value database for the masses, not the classes.
http://www.scarletdme.org - Get it _today_!
Political correctness is a doctrine, fostered by a delusional, illogical
minority, and rabidly promoted by an unscrupulous mainstream media, which
holds forth the proposition that it is entirely possible to pick up a turd
by the clean end.
_______________________________________________
Simpits-tech mailing list
Simpits-tech@simpits.org
http://www.simpits.org/mailman/listinfo/simpits-tech
To unsubscribe, please see the instructions at the bottom of the above page. Thanks!
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| Re: [simpits-tech] Display walk-around. [message #2258 is a reply to message #2257 ] |
Wed, 08 June 2011 07:49 |
cyplesma
Messages: 18
Registered: January 2009 |
Junior Member |
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|
If I'm going to make the investment in materials and know-how to build one
out of fiberglass, I'm going to make more than just one or two. :)
g.
don't blame ya there.
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