Quote:OK, I've been watching this thread. I had the same issues. Even worse!Sent the g11 to ed Thomas got it back and it was flawless.
Ed Thomas Deep Space Products www.deepspaceproducts.com
Quote:i am in no way questioning Ed's service.. but i'd be pretty upset if a $3600 G11 G2 needed a hypertune right from the store...! now if it was an old $1200 non-Gemini G11, or a Synta mount, then it's expected..
8" GSO RC with CSL Moonlite FocuserTelevue TV60isLosmandy G11 with Gemini 2 (with Ovision upgrade)
SBIG STT-8300m with Self Guiding filter wheel
A wide assortment of lenses for my Canon.
Quote:OK, this is after my third rebuild of the mount. What did I do different? Well I swapped the RA & Dec gearboxes out, I lubricated the gearboxes with spray lubricant, I spent 10 minutes cleaning the tube where the axis shaft fits. No to see if this can be sustained.Edit: This guided performance
Quote:Hilmi, that guiding graph is spectacular. Similar to my AP1200. Are the MaximDL settings correct for your scope/FL/CCD ? Your graph shows guiding at <1/3" RMS, which is pretty darn good.
HyperTuned CGEM and G11wG2 SV115T20, Meade SN-8, AT-66, and modified 20d. Nebulosity, SkyTools3, TSX, and Pixinsight.
Quote:Hilmi congrats on the improvement! I tried my setup tonight with a completely different computer running all of the software. That allowed me to guide throug ASCOM instead of the ST-4 port (no idea why that won't work on my other computer). My graph is below. For reference, this is the STi guiding through SBIG OAG. Scope focal length is 952mm. With the 0.7x reduction of the OAG, the scale is 2.29"/pixel. The graph shows deviation in pixels, so I'm still seeing these crazy >10" jumps. I have now eliminated the computer, guide port, and software as possible causes.How did you clean the RA axis? I'd appreciate any specifics you can provide.Jeremy
Quote:Today I am doing the most brutal test I could think of for my repairs of the mount. I'm doing 20 minute exposures guided, but with wind that is occasionally gusting up to 18 Km/h. The mount is housed in a roll off roof observatory, so it's not getting much wind protection.I'm just starting the test now, but I did a short trial of 1 minute during gusts and the stars where perfectly round. So I guess if it can keep the stars ROUGHLY round in such gusty winds at 20 minutes an exposure, I can officially declare all mechanical faults fixed.This test is not fair considering the conditions, but honestly, I don't have to wake up early for work tomorrow and there has been rain in the morning which means transparency is great. I figured I might as well do some random experimentation to see how well my repairs have gone.
Mach1GTO / G11/G2 (stock) / AT6RC / AT10RC / TMB92SS / Astrodon 50D / STT-8300M / FW8G-STT / PixInsight / etc, etc. Astrobin - Flickr
Quote:Wow, that looks great for 20 minutes! I wish I could get mine doing that.I'm getting ready to completely strip it down, clean it, and regrease.Does anyone have a tip for getting the needle bearings out of the axes?Jeremy