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Messages - Victor_M

Pages: [1] 2
General Discussion / Re: Skipping steps in AR Motor
« on: September 30, 2019, 19:06:06 »
Thanks to you for explaining the final solution

General Discussion / Re: Skipping steps in AR Motor
« on: September 26, 2019, 18:34:20 »
For sure you have already checked this but, just in case: have you checked if your system is well-balanced in both axis? (mount + telescope + cammera + ocular, etc)

DIY AstroEQ / Re: My first Project with AstroEQ
« on: February 19, 2019, 22:07:36 »
The NEMA nomenclature is refering about the size of the motor, not its power of torque, so you have to choose the apropriate motor depending on thr room in your mount and the size of your telescope. For a"normal" telescope I think the smaller motor in your pictures will work fine

DIY AstroEQ / Re: RA still works but DEC is not
« on: January 05, 2019, 10:57:57 »
The controller was working before or is it new and never work fine?
Is the DEC motor hot?
Have you tried to switch the RA - DEC cables in the board to check if the fault is because the controller itself or related to the cable/motor?
If it's the controller, have you tried to trim up/down a little bit the current limit potentiometer?

good look!

General Discussion / Re: A strange design.
« on: July 22, 2018, 09:51:38 »

I don't know if this can help you, but if you are ussing EQASCOM to interface your mount with the guiding software, then you can define the mount limits. I've atached a pdf file that I've found on internet with some explanations

regards and good luck

Hi Tom,

thank you for the information and for all your work in this proyect

best regards,

General Discussion / Re: AstroEQ 8.11 Released
« on: May 22, 2018, 18:51:32 »
just decrease the GoTo ratio until the movement is smooth. I think you don't need to go across the sky in 5 seconds (and your mount will suffer less). In my case, x400 is fine

Mount Support / Re: NEMA 17 Goto speed help
« on: February 03, 2018, 14:33:47 »
Hi Phil,

Thanks for the update. Interesting article and good work with the spreadsheet  :)
Also we have to consider that at high speeds the mount will suffer more stress when accelerating or decelerating, and for sure the worms for each axis will get mechanical backslash earlier

Kind regards,

Mount Support / Re: NEMA 17 Goto speed help
« on: January 27, 2018, 13:15:49 »
Hi Phil,
one question: why do you want to achieve this "high speed" GOTO? I think 500x or 800x is too much, and maybe this is your proplem of the sudden stop of the GOTO.

I had the same problem some time ago and I fixed it just lowering down this speed (I have 400x in my mount). Doing so you get more acurrate GOTOs and you just have to wait a few seconds more to get the final position.

Kind regards

AstroEQ Support / Re: Increase the size of the Pulley's
« on: January 27, 2018, 13:10:01 »
Vi Vic,

you can read this post:

where you can find some pictures from some people (included myself - Skywatcher EQ5 mount) about the gears and motors attached to the mount

General Discussion / Re: Forum Update
« on: November 22, 2017, 17:32:13 »
Thanks Tom

All ok so far :)

Just in case you haven't done it already: have you checked/replaced the USB cable from the computer to the Arduino box?

regards and good luck

Mount Support / Re: Cg-4 mount with steppers
« on: October 21, 2017, 12:19:15 »
I don't kown if you already noticed it, but from my experience in this matter I've seen that the current adjustment is very critical. I mean, a very, very tinny movement in the screew will drive into a high variation in the current, so if you haven't done it already, use a voltimeter to perform the current adjustment as precise as you can.

good look and regards,

Mount Support / Re: 12V SECM8
« on: October 09, 2017, 18:20:46 »
Tom can answer you better than me about the maximum power that the motor drivers can manage, but maybe you will need to add a heat shink to the motor drivers (if I'm not wrong, each motor will have a maximum consumption of 12 * 2.8 * 2 = 67.2 Watts)


General Discussion / Re: Parking problems
« on: June 28, 2017, 18:29:22 »
Hi Peter,

maybe this video:  https://www.youtube.com/watch?v=hvOFj63rvLo     will clarify you some settings of the EQMOD about parking.

regards and good luck

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