×
INDI Library v1.8.1 Released (09 Sep 2019)

Monthly maintenance release INDI v1.8.1

Enforce counter-weight up in eqmod

11 months 3 days ago
vnd
Fresh Boarder
Fresh Boarder
Posts: 4
More
Topic Author
Enforce counter-weight up in eqmod #33386
Hi,

Is anybody using the "Enforce counter-weight up" property in eqmod ?
It is supposed to control pier side but it is rather unreliable and hard to use, IMO. The client basically has to guess which pier side the driver would choose and eventually set this property to make the driver use the opposite side. But under certain conditions the driver may ignore this request, see this for details.

I want to change the behavior, but I don't want to break any functionality which is used. This is my idea:

Add new property "Target Pier Side" with values

"Auto" - current behavior, with counterweight down
"West", "East". - enforce given pier side, abort goto if the target is outside of safe range

maybe also rename "Enforce counter-weight up" to "Allow counter-weight up" and use it to extend the safe range 1 hour across meridian. Alternatively this can be given as numeric property.


Any opinions?

References:
https://github.com/indilib/indi/issues/798
https://github.com/indilib/indi/pull/550

Please Log in or Create an account to join the conversation.

11 months 3 days ago
jpaana
Gold Boarder
Gold Boarder
Posts: 220
Karma: 5
More
Enforce counter-weight up in eqmod #33388
I use this functionality quite a lot as I have a remote observatory and my HEQ5 is balanced slightly biased towards imaging to the west of meridian (east heavy). So I slew to targets still a bit to the east with this on so the mount is on the "wrong" side, guiding works better and I can image longer. It mostly works, but occasionally near the meridian the scope does extra meridian flips before alignment usually fixes it. Forced pier side property would work perfectly for my use, preferably with controllable limit on how far the mount is allowed to go.

Remote observatory running Ubuntu 19.10 x64 with ScopeDome 2M, Skywatcher EQ8 and HEQ5, TS 8" RC, Atik 383L+, ASI178MC, ASI120MM-S, SX Lodestar X2, SX USB wheel with OAG, ZWO EAF, USB_Focus V3, Gemini SnapCap, USB_DewPoint, KomaHub

Please Log in or Create an account to join the conversation.

11 months 13 hours ago
Ihoujin
Platinum Boarder
Platinum Boarder
Posts: 714
Karma: 3
More
Enforce counter-weight up in eqmod #33497
I have not used this feature yet, but certainly will give it a go next time the need arises. I like the idea proposed on the git forum to pop-up a warning, but if I may expand on the idea. Suppose if the setting was saved in configuration with a condition for # of hours before meridian, then a popup could be implemented as a manual confirmation for safety. Automatic function could be made available but does pose some risk at the user's discretion.

INDI/KStars on Raspberry Pi 4, 4gb
Raspbian Buster with AstroPi3 script configuration
Skywatcher HEQ5 Pro Mount
Canon 600D Camera
Orion SSAG/ASI120mm @280mm Guide Scope
PHD2
Adafruit Motor Hat shield
Adafruit GPS Module
Generic Bluetooth Joystick.
Startech 7 port powered USB Hub.

Please Log in or Create an account to join the conversation.

11 months 8 hours ago
vnd
Fresh Boarder
Fresh Boarder
Posts: 4
More
Topic Author
Enforce counter-weight up in eqmod #33508
jpaana: I have more or less the same experience.

JFYI: I have created experimental pull request which replaces "Enforce counter-weight up" with "Target Pier Side". The safe limit is still hardcoded to 1 hour across meridian.
The following user(s) said Thank You jpaana

Please Log in or Create an account to join the conversation.

11 months 56 minutes ago
jpaana
Gold Boarder
Gold Boarder
Posts: 220
Karma: 5
More
Enforce counter-weight up in eqmod #33519
Thanks, I'll give this a go, on Friday weather permitting.

Remote observatory running Ubuntu 19.10 x64 with ScopeDome 2M, Skywatcher EQ8 and HEQ5, TS 8" RC, Atik 383L+, ASI178MC, ASI120MM-S, SX Lodestar X2, SX USB wheel with OAG, ZWO EAF, USB_Focus V3, Gemini SnapCap, USB_DewPoint, KomaHub

Please Log in or Create an account to join the conversation.

10 months 4 weeks ago
jpaana
Gold Boarder
Gold Boarder
Posts: 220
Karma: 5
More
Enforce counter-weight up in eqmod #33582
From fairly light testing it seems to work well, I set target pier side to east (pointing west) and selected a target around 40 minutes east of meridian to schedule and everything worked perfectly through a few alignment steps, scope stayed on the east side without flipping back and forth.

Remote observatory running Ubuntu 19.10 x64 with ScopeDome 2M, Skywatcher EQ8 and HEQ5, TS 8" RC, Atik 383L+, ASI178MC, ASI120MM-S, SX Lodestar X2, SX USB wheel with OAG, ZWO EAF, USB_Focus V3, Gemini SnapCap, USB_DewPoint, KomaHub

Please Log in or Create an account to join the conversation.

Time to create page: 0.842 seconds