RE: [ap-gto] 1100AE Pier Strike! Damage?


Oct 15, 2017

 


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#58987 Oct 15, 2017

Hello. BTW, hate the search function on Yahoo Groups! I know this has been discussed. Even searched the 1100AE manual but didn't come up with anything. But I digress...

I was conducting some mount tests last night, syncing with my dome, etcetera. Well, I got to watching a movie (Meatballs?) and then went to bed with the observatory still running. Since I had APCC Homing/Limits set to "stop slew and tracking" when limit reached, I didn't have any concerns. Except I didn't have it set that way, it was set to "just warn". So the mount sailed right through my limits...

So this morning I wake up to the telescope looking like Drew in Deliverance after they found him dead in the��Cahulawassee. Counterweights up and the scope mounting plate all contorted into the pier. Nary a scratch to anything, so I am assuming it just stalled out, with no damage right? Right? Basically, it started tracking from Park 4 and then hit the pier on the other side. I reparked, and it dutifully went back to proper Park 4.��

Did I do any internal damage?

Chris��



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#58988 Oct 15, 2017

"Did I do any internal damage?"



No, you did nothing. As soon as the motor stalled, the CP4 cut power and stopped the motor from tracking any further.



Rolando







-----Original Message-----

From: chris@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Sun, Oct 15, 2017 1:47 pm

Subject: [ap-gto] 1100AE Pier Strike! Damage?





Hello. BTW, hate the search function on Yahoo Groups! I know this has been discussed. Even searched the 1100AE manual but didn't come up with anything. But I digress...



I was conducting some mount tests last night, syncing with my dome, etcetera. Well, I got to watching a movie (Meatballs?) and then went to bed with the observatory still running. Since I had APCC Homing/Limits set to "stop slew and tracking" when limit reached, I didn't have any concerns. Except I didn't have it set that way, it was set to "just warn". So the mount sailed right through my limits...



So this morning I wake up to the telescope looking like Drew in Deliverance after they found him dead in the��Cahulawassee. Counterweights up and the scope mounting plateall contorted into the pier. Nary a scratch to anything, so I am assuming it just stalled out, with no damage right? Right? Basically, it started tracking from Park 4 and then hit the pier on the other side. I reparked, and it dutifully went back to proper Park 4.��



Did I do any internal damage?



Chris��



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#58990 Oct 15, 2017

Chris,��That'swhat clutches are for!�� And I'm sure they did theirjob.��MyMach1 took a tumble once, scratched up the scope and some other things, but themount clutches did their job, slipped when they needed to, and no damage wasdone.��Woody��

-----Original Message-----From:ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent:Sunday, October 15, 2017 11:47 AMTo:ap-gto@yahoogroups.comSubject: [ap-gto] 1100AE Pier Strike!Damage?

��Hello. BTW, hate the search function on Yahoo Groups! I know this hasbeen discussed. Even searched the 1100AE manual but didn't come up withanything. But I digress...

I was conducting some mount tests last night, syncing with my dome,etcetera. Well, I got to watching a movie (Meatballs?) and then went to bedwith the observatory still running. Since I had APCC Homing/Limits set to"stop slew and tracking" when limit reached, I didn't have any concerns.Except I didn't have it set that way, it was set to "just warn". So the mountsailed right through my limits...

So this morning I wake up to the telescope looking like Drew inDeliverance after they found him dead in the��Cahulawassee.Counterweights up and the scope moun! ting plate all contorted into the pier.Nary a scratch to anything, so I am assuming it just stalled out, with nodamage right? Right? Basically, it started tracking from Park 4 and then hitthe pier on the other side. I reparked, and it dutifully went back to properPark 4.��

DidI do any internal damage?

Chris��



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#58992 Oct 15, 2017

Yes, Woody. I am reminded of Captain Pikes comment: "Careful��with the ship,��Spock,��she's brand new...". Was afraid I may have put excessive wear on them. Anyway, after this issue, it seems the mount got lost. I did a basic manual Park 4 and got it back. I should know this, but does this sort of mount crash mess up the sync, like manually moving the scope via the clutches? CG



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#58993 Oct 15, 2017

Actually the mount clutches are somewhat irrelevant��to amount crash.�� If they are tight, the CP2/3/4 detects a motor stall and cutsmotor power.�� If the clutches are a bit loose then the motor doesn't stalland the clutches slip instead.��If you dump your mount over then having the clutches on thesofter side might limit damage to OTA's cameras and such.��Maybe.����-Christopher EricksonObservatoryengineerSummit KineticsWaikoloa, HI 96738www.summitkinetics.com

��



From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Sunday, October 15, 2017 11:52AMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] 1100AEPier Strike! Damage?



Chris,��That'swhat clutches are for!�� And I'm sure they did theirjob.��MyMach1 took a tumble once, scratched up the scope and some other things, but themount clutches did their job, slipped when they needed to, and no damage wasdone.��Woody��

-----Original Message-----From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Sunday, October 15, 201711:47 AMTo: ap-gto@yahoogroups.comSubject: [ap-gto]1100AE Pier Strike! Damage?

��Hello. BTW, hate the search function on Yahoo Groups! I know this hasbeen discussed. Even searched the 1100AE manual but didn't come up withanything. But I digress...

I was conducting some mount tests last night, syncing with my dome,etcetera. Well, I got to watching a movie (Meatballs?) and then went to bedwith the observatory still running. Since I had APCC Homing/Limits set to"stop slew and tracking" when limit reached, I didn't have any concerns.Except I didn't have it set that way, it was set to "just warn". So the mountsailed right through my limits...

So this morning I wake up to the telescope looking like Drew inDeliverance after they found him dead in the��Cahulawassee.Counterweights up and the scope moun! ting plate all contorted into the pier.Nary a scratch to anything, so I am assuming it just stalled out, with nodamage right? Right? Basically, it started tracking from Park 4 and then hitthe pier on the other side. I reparked, and it dutifully went back to properPark 4.��

DidI do any internal damage?

Chris��





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