Remote pressure WiFi controler for LUNT LS60-150

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Remote pressure WiFi controler for LUNT LS60-150

Post by pupak »

First prototype is ready for testing. Now Sun missing only. :(
Manuál, USB or WiFi control via HTTP. ASCOM driver coming soon.
Pressure 0 - 30 PSI +- 0.1 PSI. Store and restore target value.
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Re: Remote pressure WiFi controler for LUNT LS60-150

Post by marktownley »

That's clever! Keep us updated how you get on!


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Re: Remote pressure WiFi controler for LUNT LS60-150

Post by pupak »

The first test of the regulator turned out great. Fine-tuning the pressure with visual control on a large monitor is the ideal solution. The optimal pressure is maintained with an accuracy of 0.1 PSI and subsequently stored in the controller's memory. The next time I observe, I just hit the Restore button and I'm right in the H-alpha band. My experience is that the etalons will not hold the pressure because the seal is not good, so they need to be adjusted often. The regulator solves this to my complete satisfaction. The week spent developing the regulator paid off handsomely.


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Re: Remote pressure WiFi controler for LUNT LS60-150

Post by marktownley »

Nice engineering solutions!


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Re: Remote pressure WiFi controler for LUNT LS60-150

Post by OneDegreeNorth »

Nice work!

I'm interested
to see how you connect the tuner to your remote system.


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Re: Remote pressure WiFi controler for LUNT LS60-150

Post by pupak »

I have a NUC on mount, that's why I use USB. The second option is control via WiFi. During the test, I used manual control with buttons on the panel and a 10m pressure hose to the etalon.
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Re: Remote pressure WiFi controler for LUNT LS60-150

Post by OlegLviv »

Nice! Do you have on photo F7 or F6 telescope? Thanks!


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Re: Remote pressure WiFi controler for LUNT LS60-150

Post by pupak »

It is Lunt LS80 - F7.


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Re: Remote pressure WiFi controler for LUNT LS60-150

Post by Ivan »

Hello,

Great job, a very interesting and necessary project! I also often noticed that during a long session the strip moves out (temperature or poor tightness).

Can you describe the pneumatic circuit in more detail? How did you manage to avoid air strikes? using a receiver and valve system? But if the engine is pumping the receiver on and off, then how is the pressure regulated in a closed system (when the engine is turned off and the receiver is full)?

Ivan


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Re: Remote pressure WiFi controler for LUNT LS60-150

Post by pupak »

The most important thing is the sufficient volume of the air reservoir. With sufficient size, pressure changes are gradual and regulation is +- 0.1PSI. However, even changes of +-0.5 PSI are not detectable by eye.
The system is simple. The pump increases the pressure and the discharge valve decreases it. A quality Honeywell 0-30 PSI pressure sensor with an error below 1% is important.


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Re: Remote pressure WiFi controler for LUNT LS60-150

Post by Bastelhannes »

I love the idea. I am trying to make a similar solution for the Sundancer2, but I can't program.

Please keep us updated. Maybe we can create a commercial solution (of course with you on board)?


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Re: Remote pressure WiFi controler for LUNT LS60-150

Post by pupak »

:) No problem.


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Re: Remote pressure WiFi controler for LUNT LS60-150

Post by christian viladrich »

Great job !!


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