Coming back...

I LOVE finding out about different ways to appreciate the Sun and light in general. Use this forum to post your info or questions about various outside the mainstream ways to appreciate our life giving star!
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Coming back...

Post by Wah » Fri May 29, 2020 1:13 am

After a long leave, I am now redesigning the spectroscopes and creating the parts by using a 3D printer.
Some optical glass slits have been used also, I hope the overall image quality can be improved.
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Spectroscopes1.jpg
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Spectroscopes2.jpg
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Re: Coming back...

Post by Montana » Fri May 29, 2020 7:05 am

Excellent!! I really look forward to your excellent images again :hamster:

Alexandra



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Re: Coming back...

Post by marktownley » Fri May 29, 2020 11:27 am

Fantastic Wah! I'm looking forward to the results.


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http://brierleyhillsolar.blogspot.co.uk/
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Re: Coming back...

Post by Merlin66 » Sun May 31, 2020 8:38 am

Wah,
Glad to see you back.
I think 3D printing is the way forward. Paul has been active producing his LowSpec spectroscope design, a great introduction to slit spectroscopy.
Are you going to update your SLM software to allow larger files???


"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy  
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

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Re: Coming back...

Post by Wah » Sun May 31, 2020 4:17 pm

Which file format and what size do you need?
As far as I remember, I was using an external library for avi format which cannot handle larger size files.
Then a newer version could handle mono-color ser files without problems (I guess).



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Re: Coming back...

Post by Merlin66 » Sun May 31, 2020 11:33 pm

Wah,
I've been trialling a fast frame ASI 174MM camera on the SHG, using the x2 RA speed to reduce acquisition time. ( Using an ROI just enough to get the spectral line, I can get up to 400 fps)
The SER files can be up to 3Gb in size....this seems to be an issue for SLM?
Ken


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https://groups.io/g/astronomicalspectroscopy  
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"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

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Re: Coming back...

Post by Wah » Sun May 31, 2020 11:48 pm

What error did it show? Or it never prompt error when the file is over 3GB?



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Re: Coming back...

Post by Merlin66 » Sun May 31, 2020 11:57 pm

I think it just didn't run.....
(Been a while now due to weather and other issues. I could probably find the file on the computer and check if needed.


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Re: Coming back...

Post by Wah » Mon Jun 01, 2020 12:41 am

You may compress and upload the file to google drive or dropbox and let me have a try.



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Re: Coming back...

Post by Merlin66 » Mon Jun 01, 2020 1:05 am

Wah,
Give me some time to find the files.
I'll email you when I'm ready.
ken


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"Imaging Sunlight - using a digital spectroheliograph" - Springer

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Re: Coming back...

Post by MERRILL » Mon Jun 01, 2020 5:53 am

It looks very nice!



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Re: Coming back...

Post by Carbon60 » Mon Jun 01, 2020 6:15 am

Welcome back. Looking forward to seeing the results from your new kit.

Stu


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/

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Re: Coming back...

Post by Wah » Mon Jun 01, 2020 11:40 pm

The refill filament has arrived and more parts have been printed out.
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1.jpg
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Re: Coming back...

Post by Wah » Tue Jun 02, 2020 10:55 pm

Two improvements:
1. Slit fixing method
2. Print direction
111.jpg
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Re: Coming back...

Post by Merlin66 » Tue Jun 02, 2020 11:05 pm

Wah,
""
Some optical glass slits have been used
""
The OVIO reflective slit plates????


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http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

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Re: Coming back...

Post by Wah » Wed Jun 03, 2020 12:49 am

Not from OVIO, but tailor-made from China some years ago.



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Re: Coming back...

Post by Merlin66 » Tue Jun 09, 2020 2:08 am

Wah,
I've sent you an email with the SLiM errors, and sent a copy of the AVI file (930Mb) to dropbox
https://www.dropbox.com/s/rrjtee31vwf1h ... p.avi?dl=0
Ken


"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy  
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

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Re: Coming back...

Post by Phil Rousselle » Tue Jun 09, 2020 5:33 pm

Hi
Very nice job Wah !
I've also a 3D printer, and it's a very good tool to make parts for SHG
Phil



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Re: Coming back...

Post by Wah » Wed Jun 10, 2020 12:45 am

Merlin66 wrote:
Tue Jun 09, 2020 2:08 am
Wah,
I've sent you an email with the SLiM errors, and sent a copy of the AVI file (930Mb) to dropbox
https://www.dropbox.com/s/rrjtee31vwf1h ... p.avi?dl=0
Ken
I just experienced the error myself this morning, and found that it should be a setting problem. I mistakenly set the project as X86 rather than X64, so it could only allocate a very limited amount of memory. I will post a recompiled version later and let you try.



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Re: Coming back...

Post by Merlin66 » Wed Jun 10, 2020 12:57 am

Wha,
Thanks for the feedback.
Your continued support for the SHG is appreciated.
Look forward to trying the new version.


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https://groups.io/g/astronomicalspectroscopy  
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

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Re: Coming back...

Post by Wah » Wed Jun 10, 2020 1:51 am

https://drive.google.com/file/d/1Gnfkx2 ... sp=sharing

Hi Merlin, are you able to download the file from the above link?



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Re: Coming back...

Post by highfnum » Wed Jun 10, 2020 4:14 am

interesting



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Re: Coming back...

Post by Merlin66 » Wed Jun 10, 2020 4:44 am

I’m in transit....I’ll download later when I get home.
Many thanks.


"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy  
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

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Re: Coming back...

Post by Merlin66 » Wed Jun 10, 2020 6:57 am

Wah,
Downloaded OK
I'll try it ASAP and give you feedback.
Many thanks,
ken


"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy  
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

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Re: Coming back...

Post by Merlin66 » Wed Jun 10, 2020 10:20 pm

Wah,
Unfortunately it still shows the same error messages.
Looking at the "Unhandled exception" - Object reference not set to an instance of an object
There seems to be references to d:\projects\SLiM_RemovedProcessing\form1.cs.
I assume this was your working directory????
Let me know how I can assist.
regards,


"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy  
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

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