Panagiotis Papadakos

In case anyone is interested in trying OnstepX for their mesu here is my code repo with some changes for my mesu. The controller is based on the MAXPCB4 board https://onstep.groups.io/g/main/wiki/33523 and Teensy 4.1. Here is the code repo with some changes for the https://github.com/papadako/OnStepX/tree/mesu P.S. I am using the HEDM-5500-B02 encoder in both RA/DEC

Hello Bryan, I have the exact same Mesu and along with a friend of mine we have made an OnstepX controller based on teensy-4.1.

Thank you all for your great responses. It seems like this project does not worth it!

Hello, I have been thinking about getting one more RC so that I can double the data per night. However, I have not seen such a setup. Only RASA-based ones. I know I will not have a problem with my mount (a mesu-200). But I am not sure about flexture issues since fl is about 1620 Any thoughts on this? CS Panagiotis

Hello, I think the only difference is the ratio, which is 1:2800 instead of 1:2000 of the older one. So you get 11,200,000 ticks for the motor encoders.

Hello, I am not sure if you have already addressed it. From my research I have found that a Mesu-mk1 usually has 1:2000 gear ratios (I think I have heard also of some examples with a 1:2800 ratio). The encoders at least in mine are 4,000 steps in the RA (HEDM-5500-B02) and 2,000 steps in the DEC (HEDS-5540-A02), for a total of around 8,000,000 and 4,000,000 ticks in the RA / DEC resp. Notice that for the encoders we use the CPR which is 4xPPR. My second-hand mesu-200 which came with Argonavis/servocat has been converted to OnStepX (it still needs some fine-tuning though). Right now OnStepX is configured for 22229 ticks/degree and 11111 ticks/degree in the RA/DEC resp.

Dear all, I have been searching for mirror re-coating services in Europe, but I did not find any list of such services. Below is my current list. Feel free to post any other available services that you are aware of. Recoating type: 1) Aluminium + SiO2, 2) Enhanced Aluminum, 3) Silver UK Galvoptics (1) Orion (1, 2) ScientificMirrors (?) Germany Alluna Optics (?) TS (2) Poland Taurus (1, 2) DIY AngelGilding kit (3)

Dear all, I have the 60mm APM with the prism (https://agenaastro.com/misc/discontinued-products/apm-60mm-right-angle-correct-image-finder-prism-diagonal.html). Unfortunately, this finder with the APM 20mm 70 reticle eyepiece (https://www.astroshop.eu/eyepieces/apm-reticle-eyepiece-20mm-70d1-25-/p,52755) can not reach focus (the focuser should be able to focus a bit more inside). There is no such problem with the 24mm it https://www.astroshop.eu/eyepieces/apm-1-25-24mm-55d-crosshair-eyepiece/p,52825 and the rest of my eyepieces (even with the 13mm apm 100). Is there anything I can do? Best Panagiotis

Hello everyone, does anybody knows if I can somehow contact John Owens? I have one 7'', 106'' focal length doublet that he signed on 6/90 and I would like to learn more info about this lens (oil-spaced or air-spaced)?