With my new 3D printer, and the help of my daughter who is keen on making 3D models, this project is realised so quickly and it's a BIG success.
It was pessimistic about the thread (77mm 0.75 tpi) but it turns out to be nearly perfect.
It can reach infinity focus with some rooms. So now this little lens could do autofocusing with asiair!
Aside from using an eyepiece, I also use 533mc pro to test. It works without problem.
Other than the above adapter, I will be making two more:
a. 2" nosepiece in order to be used with my 85mm refractor for fine focusing
b. SCT female thread in order to be used with my SCT
I can then sell that CYCK focuser.
--
I have removed the ebay ad of my Canon 300mm, will be keeping it and making good use of it.
I have ordered black PETG carbon fibre filaments to print a strong adapter. My daughter has modified the adapter to have more threads on more secure connection to the lens.
--
Later I found that the thread is less than perfect so that it's not screwed all the way in and thus leaving the gap. It is probably not strong enough. But the good news is that, if the quality of the thread improves, I will get even more room for focusing.
Time to do some fine tuning.
--
I have printed a new version with PETG, stronger apparantly. But yet, the thread is less than perfect. I will need to do some more experiments.
I have printed another ring only to save filament and time. But then it still less than perfection.
No comments:
Post a Comment