Re: Reducing DEC Backlash with Titan 50
Thanks to you both.? Very informative. At some point I will give it a shot.... you are making it sound fairly easy.? When I do it.... I'll have both the scope/imaging equipment and the
By
dkfcpalfd@...
·
#71711
·
|
Re: Gemini-2 momentarily went haywire
An issue that has never been mentioned on this Gemini forum is electrical circuit noise inhibiting the normal processing of Firmware commands. ?Barring the obvious bad cable/connector/battery/dirty
By
Bill P.
·
#71710
·
|
Re: Reducing DEC Backlash with Titan 50
Dan I have the same scope mounted. The worms come off regardless of if the scope is mounted or not. Remove the 14mm nuts first. Then you unscrew the top mounting worm back off bolts. Those thread into
By
Michael Herman
·
#71709
·
|
Re: Losmandy G11 Gemini 1 Battery
Hi Michael. The fail was in all positions, always doing a GoTo command or a Park command. Every command that use 2 axis will fail after 1 sec of start or less. Is like instantaneously. Manual move of
By
Boreack <enolmbgi26@...>
·
#71708
·
|
Re: Reducing DEC Backlash with Titan 50
Absolutely! Don't even think of leaving the scope on while removing the worm block -- the OTA will spin freely if you do, with nothing but the hard tripod to stop it. Not sure. Once you remove the
By
Paul Kanevsky
·
#71707
·
|
Re: Gemini-2 momentarily went haywire
Very special skill, tools and techniques are required to remove a large scale chip on a multi-layer circuit board and if the board traces are damaged there will be new problems to solve. A more like
By
Bill P.
·
#71706
·
|
Re: Reducing DEC Backlash with Titan 50
Thanks, guys. Paul: Your write-up on adjusting the worm mesh is basically what I was doing with those bolts.... a tad of torque on the wing bolts, and I get the noise.? Back off just a little, but
By
dkfcpalfd@...
·
#71705
·
|
Re: Losmandy G11 Gemini 1 Battery
I certainly can see the benefits of monitoring current and volts for the Gemini -- Brendan
By
Brendan
·
#71704
·
|
Re: Reducing DEC Backlash with Titan 50
OK, what weight amount should I use? Do you do a final balance after adding that weight? Aubrey Sent from Mail for Windows 10 Sent: Sunday, May 9, 2021 9:54 PM To: [email protected] Subject:
By
Aubrey Brickhouse
·
#71703
·
|
Re: Reducing DEC Backlash with Titan 50
Dan, The lube on the Titan ring gear needs to reduce the worm friction to as low as possible. My research on the "4-ball test" and the " Timken load" test shows the "CRC Brake and Caliper Grease" has
By
Michael Herman
·
#71702
·
|
Re: Losmandy G11 Gemini 1 Battery
Hi gang, As a simple temendy for Enol, just reduce the maximum slew rate. There is a digital setting for that. If Enol's system runs out of current as the counterweight shaft moves toward horizontal,
By
Michael Herman
·
#71701
·
|
Re: Losmandy G11 Gemini 1 Battery
Yeah peak is a bit overrated mostly why¡¯d 200-250ma (if not less) at sidereal rate to 600ma slew but take into account both axes at this does so 1.2A peak. ?It¡¯s hard to tell with digital
By
Brendan
·
#71700
·
|
Re: Losmandy G11 Gemini 1 Battery
Just to add a data point.... I run my mount, two cameras and mini-PC all from the same 12V 5A power supply. I do not recall individual current draws but with everything running (and the imaging camera
By
Paul Goelz
·
#71699
·
|
Re: Losmandy G11 Gemini 1 Battery
Brendan, one question. The manual of the G11 says you need at least 3 Amps to work propertly. I think this is for GoTo commands to work. With your information, a GoTo only need 0.35 Amps at 17v, so
By
Boreack <enolmbgi26@...>
·
#71698
·
|
Re: Reducing DEC Backlash with Titan 50
Hi Dan, Glad to hear you're making progress with backlash! The sound appears to be caused by too tight of a mesh between the worm and the worm-wheel. Very tiny variations in worm and wheel can lead to
By
Paul Kanevsky
·
#71697
·
Edited
|
Re: Reducing DEC Backlash with Titan 50
Paul: Last night I cranked up TVC in G2.... up to 100.? Ran the GA, and I couldn't believe it, there was no backlash shown on the graph, in fact the actual plot was very close to and slightly left of
By
dkfcpalfd@...
·
#71696
·
|
Re: Losmandy G11 Gemini 1 Battery
Enol Lm2587 (
By
Brendan
·
#71695
·
|
Re: Losmandy G11 Gemini 1 Battery
Hi, I'm interested, but shipping and taxes probably will cost more than the box itself. El you have a wiring and component diagram to made one? Greetings, Enol. El lun., 10 may. 2021 3:44 a. m.,
By
Boreack <enolmbgi26@...>
·
#71694
·
|
Re: Reducing DEC Backlash with Titan 50
Aubrey, that is the great benefit of the hanging RA cord. Hanging the cord and weight off to the East experimentally gives the lowest vibration (chatter) to the RA ring gear (worm wheel) as it is
By
Michael Herman
·
#71693
·
|
Re: Reducing DEC Backlash with Titan 50
Thanks Michael, but its not clear how this works on both sides of the meridian. I am also operating remotely so everything has to work without dragging, snags etc. Aubrey Sent from Mail for Windows 10
By
Aubrey Brickhouse
·
#71692
·
|