Luiscarss

Thank you all very much, it is a pleasure to show you my work. Thank you

Hi everyone, I present to you my first job with my new telescope. It is a 16" Newton, built with a carbon fiber tube and a TS conical mirror. The cameras used for this first test were a Qsi660 and a 533c.

First I took a color photo, but it seemed to me that the telescope could do more, so I added a luminance photo to give it more detail. In the end the photo had 4 hours of L and 7 of color.

I hope you enjoy it. Thank you all

https://i.postimg.cc/qR8TCPQ4/M51-LQSICOLOR533-FINAL.png

https://postimg.cc/MMK4CrhF

M51LQSICOLOR533FINAL.tif

I'm going to try to write a column, to see if I improve a bit, although I don't have much hope. I'll tell you.

I'm going to try your options, to see if I can improve the system. I think that the mount cannot handle so much sail, the traction system that it has seems not to be the most suitable for my tube. It makes me a little angry because before starting the project I asked if there would be any problem. I have in mind to build a dome.

Thank you all very much for your interest, because I'm a little frustrated with the manufacturer's troubleshooting and the fear that if something breaks I don't know where to go.

Hello everyone, thank you very much for your interest, I try to answer all the questions and see what I can try

On 5/10/2023 at 9:32 PM, ollypenrice said:

How about the floor itself? Could the wind be moving the shed which then moves the floor? (Maybe try your metre on the floor itself?)

What about trying to check the vibration while the mount is not tracking? That might eliminate irregularity in the drive train.

Are you confident that the balance is correct? (I must say that my Mesus did not seem terribly sensitive to balance.)

How windy is windy at your location? 

I have tried to measure the oscillations from the ground to the tripod, and there is none, from the tripod to the equatorial wedge there are no vibrations either, the vibrations begin behind the three screws, and are more intense on the DEC axis

The winds that particular night were 7 or 8 km per hour

I have been writing with Lucas for five months, plus the year that I was waiting for the frame, and he is very ambiguous in his emails, I already did the tests that he recommended but they did not solve anything. The last thing I know about Lucas is that he didn't have time for any more of my experiments, and when I asked him for a refund, he didn't answer me again.

21 hours ago, tomato said:

I have crudely tried to replicate your touch test on my rig, I don't think there are any settling oscillations.

I made an iron bar to rule out flexing in the tube, and the frame kept oscillating at the slightest touch

21 hours ago, SamAndrew said:

You might find that the current distribution of weight has shifted the natural frequency of the system so that it is now resonating. I would add or remove weight from the counterweight shaft (and rebalance) and see what impact that has.

I'm going to try what you tell me to see if I can improve it

2 hours ago, Tomatobro said:

I watched the videos and I think the issue is with the tripod.  In particular the structure above where the legs attach to where the Mesu sits.

If it were the tripod, shouldn't it also vibrate with respect to the ground?

On 5/11/2023 at 1:02 PM, gorann said:

I also have Mesu mounts but never seen this, but I have them on concrete pillars attached to half a tonne of concrete in the ground and isolated from the obsies.

I did not feel those oscillations, although I did not do it for much either time, I was afraid that the EQ8 would break, that's why I bought the Mesu

Thank you all very much, the truth is that these days there has been no wind, and I have been able to use it, I have also tried it with a smaller tube, and it works well, the problem is when the conditions are not optimal

Hello everyone, I recently bought this frame, I have it supporting a 16" newton and about 30 kg of weight. The tube is made of carbon by Klaus, and the mechanics and optics are by TS.

I have it in an observatory with a drop-down roof, so it rises a third above.

The mount works well when the conditions are optimal, but at the slightest wind, just a little, the stars dance and I can't use it.

I'm struggling with the vibrations but I can't get them to go away

I did the following tests to see why the mount oscillated so much:
- Attach the tripod to the ground with cables to give it more stability
- Screw the equatorial wedge with more screws to the tripod
- I replaced the tube's losmandy tail with two new clamps and a reinforced losmandy tail
- I did tests with an iron bar of similar dimensions, to discriminate that the vibrations were not from the tube
- Record videos with a slight wind so that you can see the stars dance, and without wind so that you can see that the problem came from a slight breeze
- Change the center of gravity of the tube to center it in the mount by adding weight on the focuser
- I added against nuts to the screws
- They gave me a precision watch and I measured the oscillations in each part of the tube in reference to the ground, the tripod, the equatorial wedge and the tube.

https://www.youtube.com/watch?v=oj5BH5WElug
https://www.youtube.com/watch?v=8gMpb1jTTbc
https://www.youtube.com/shorts/JyqnIO7e1Kw
https://www.youtube.com/shorts/pYv-ZPqxhSw
https://www.youtube.com/shorts/uc6NYmI88JY
https://www.youtube.com/shorts/ZAXvKCNAoPs
https://www.youtube.com/shorts/nMZv75XJOgU
https://www.youtube.com/shorts/subK-L9pTGU
https://www.youtube.com/shorts/O5rpNEhX-jk

I made these videos to try to determine where the vibrations are produced

Can someone who has this mount help me?

Thank you all very much for the warm welcome.

Hello everyone, my name is Luis, I am in the south of Spain, I have been reading the forum for many years, although I have never participated or registered before. Congratulations for such a magnificent job.
My current equipment is a Klaus newton with ts optics and a mesu mount

Greetings