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  #681  
Old 08-13-2018, 05:42 PM
Steve Melton's Avatar
Steve Melton Steve Melton is offline
 
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12mm lights, vertical orientation. .2" offset overlap option for increased margin for cutting panel. 4 and 6 count shown.



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Cincinnati, OH
RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 600+ for all

Simplicity is the art in design.

see Amanda Melton for www.rvplasticparts.com
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  #682  
Old 08-15-2018, 04:54 AM
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Steve Melton Steve Melton is offline
 
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Default d-sub option

16mm lights with d-sub option

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Steve Melton
Cincinnati, OH
RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 600+ for all

Simplicity is the art in design.

see Amanda Melton for www.rvplasticparts.com
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  #683  
Old 08-15-2018, 06:15 AM
Scott Hersha Scott Hersha is offline
 
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Location: Cincinnati, OH
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How about making the toggle switch a dpdt switch so you can have a test position one way and a fixed dim the other way?
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  #684  
Old 08-15-2018, 10:26 AM
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Steve Melton Steve Melton is offline
 
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Quote:
Originally Posted by Scott Hersha View Post
How about making the toggle switch a dpdt switch so you can have a test position one way and a fixed dim the other way?
that could be an option. some have preferred just a simple on/off.

ordered a couple dpdt switches. should fit the existing space fine. how would you wire that?
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Steve Melton
Cincinnati, OH
RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 600+ for all

Simplicity is the art in design.

see Amanda Melton for www.rvplasticparts.com

Last edited by Steve Melton : 08-15-2018 at 05:14 PM.
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  #685  
Old 08-15-2018, 07:08 PM
Scott Hersha Scott Hersha is offline
 
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If you are using LED lights, you have to vary the voltage (I think). Iíve used resistors before, and it worked OK, but you have to experiment with various sizes to get what level you want. Resistors are cheap, so that shouldnít be a problem. Was easier when Radio Shack was down the street. The LEDs we are using are of such low power that the resistor needs to be relatively low impedance. I donít have any really low level resistors on hand, but Iím willing to try a couple solutions if youíre interested. A multifunction toggle would be be a nice, professional addition to your annunciation panel. Iíve seen these lights glowing at night in a dark cockpit, and if you donít have some mastic tape on hand it can become very distracting.

BTW - have you tried to make decals to place in the rectangular lights like you show here? Black on clear in a label maker, placed inside the light cover works great.
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  #686  
Old 08-15-2018, 07:16 PM
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Steve Melton Steve Melton is offline
 
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sure, Gil also mentioned something about diodes. we can sketch something. also, I was thinking of having some labels printed. Hetico did that at a print shop. all the labels on clear 8.5 x 11, chose what you want, was not expensive. need to find some artwork.

16mm momentary lights. no test switch needed for these because it's built in. one or two of these lights could be latching for dimming and off if desired. or I could add a separate toggle switch.









for those that want more panel overlap, this is the .2" overlap version



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Steve Melton
Cincinnati, OH
RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 600+ for all

Simplicity is the art in design.

see Amanda Melton for www.rvplasticparts.com

Last edited by Steve Melton : 08-15-2018 at 08:02 PM.
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  #687  
Old 08-15-2018, 09:54 PM
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az_gila az_gila is offline
 
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Quote:
Originally Posted by Steve Melton View Post
...

for those that want more panel overlap, this is the .2" overlap version



How do I get one of those?

That's one of my planned indicators for my -10 panel - from left to right -

Red - Master EFIS warning
Orange - Left Door Open
Orange - Right Door Open
Orange - Baggage Door Open

No switching or dimming needed, only indicators - the EFIS light can be inhibited from the screen, and I wouldn't want to even take off with any of the other three on.

Does PayPal work for you?
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  #688  
Old 08-16-2018, 04:19 AM
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Steve Melton Steve Melton is offline
 
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Quote:
Originally Posted by az_gila View Post
How do I get one of those?

That's one of my planned indicators for my -10 panel - from left to right -

Red - Master EFIS warning
Orange - Left Door Open
Orange - Right Door Open
Orange - Baggage Door Open

No switching or dimming needed, only indicators - the EFIS light can be inhibited from the screen, and I wouldn't want to even take off with any of the other three on.

Does PayPal work for you?
no charge, it was your idea. send me your address and I'll have Amanda ship it. I would appreciate if you would publish your wiring diagram for other to use and advise me of any improvements needed.

what color: white, grey, black?
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Steve Melton
Cincinnati, OH
RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 600+ for all

Simplicity is the art in design.

see Amanda Melton for www.rvplasticparts.com

Last edited by Steve Melton : 08-16-2018 at 04:26 AM.
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  #689  
Old 08-16-2018, 07:44 AM
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Snowflake Snowflake is offline
 
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Quote:
Originally Posted by Scott Hersha View Post
If you are using LED lights, you have to vary the voltage (I think). Iíve used resistors before, and it worked OK, but you have to experiment with various sizes to get what level you want.
Resistors will work, but they do generate heat... More dimming, more heat.

The best way to dim an LED is through Pulse Width Modulation (PWM) where you pulse the LED at high frequency to reduce the time the LED spends on... Your eyes see it as dimming. This does require a more involved circuit, and careful attention to filtering to prevent noise.
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  #690  
Old 08-18-2018, 06:31 AM
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Steve Melton Steve Melton is offline
 
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Quote:
Originally Posted by Snowflake View Post
Resistors will work, but they do generate heat... More dimming, more heat.

The best way to dim an LED is through Pulse Width Modulation (PWM) where you pulse the LED at high frequency to reduce the time the LED spends on... Your eyes see it as dimming. This does require a more involved circuit, and careful attention to filtering to prevent noise.
well, if dimming is needed it seems it may be more complicated.

working on the stitching appearance on the forward face. to get a nice appearance it requires the hole thru the forward face to be printed closed and then opened from the back thru the guide hole. I think it's worth it because it looks better. cut template is added in the photo. this one is done. I'm happy with it.









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Steve Melton
Cincinnati, OH
RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 600+ for all

Simplicity is the art in design.

see Amanda Melton for www.rvplasticparts.com

Last edited by Steve Melton : 08-18-2018 at 07:35 AM.
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