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Some might recall that about a month ago I asked about a problem with my mount "drifting" in RA for some time after I made a manual correction through the ASCOM interface.? It turned out that was due to a poorly adjusted spring loaded worm assembly.? I contacted Losmandy and in part due to that call, Scott made and posted a video on how to properly adjust the worm - apparently a number of people were having problems with adjustment, or simply ignored Scott's warning to not mess with it!? Unfortunately, that video describes adjusting the spring while watching the gears on a tucked-in motored G11.? On the older G11 without the tucked in motors, one cannot watch the gears mesh, at least not that I have figured out.? That aside, and adjusting as best as I can, I adjusted the right worm block (the one farthest form the motor) until it and the worm were tight, then tightened that block with the bolt coming from the rear - the bolt that can't be tight otherwise the whole assembly will not rotate as intended.? I figured out to first tighten that rear block mounting bolt then reattached the long worm cover piece and tighten that to both blocks firmly.? Then, loosen the rear block bolt just enough to allow it to move so the spring can do its job of keeping the assembly, which contains the worm, close to the main gear.? That worked and I saw very good tracking, for a while, but over a fairly short period of time the block slide outward a bit loosening the worm and the RA "drifting" problem returned.? Assuming I'm doing this correctly, the problem I see is that the bolt going through the cover piece that I'm using to keep the block adjusted relative to the worm can't be tightened enough to hold that block in place with the force from the lateral worm movement that exists anytime the mount is driven (tracking), or making RA corrections.?? I'm inclined to fabricate an end plate for the worm cover (somehow) and add an adjuster screw coming out the end (co-linear with the worm) so that that the right block can be adjusted with just the right amount of force on the worm but allowing the assembly to freely pivot around the left block rear bolt, rather than count on Scott's approach of "press on the block with your fingers while rotating the RA shaft, then screw it down", approach.?

Am I approaching this incorrectly, or does anyone have a better idea on how to ensure the right block, once adjusted, stays adjusted??

Larry

Yea mine has the same problem. I was told that I did something with the mount and I did not. Now if I send it back it's not under warranty. I adjusted the worm gear in the fashion that was shown in the spring loaded worm video. No luck at all.?

Daniel V

On Sat, Sep 21, 2019, 2:47 PM Larry Couture <couture.larry@...> wrote:

Some might recall that about a month ago I asked about a problem with my mount "drifting" in RA for some time after I made a manual correction through the ASCOM interface.? It turned out that was due to a poorly adjusted spring loaded worm assembly.? I contacted Losmandy and in part due to that call, Scott made and posted a video on how to properly adjust the worm - apparently a number of people were having problems with adjustment, or simply ignored Scott's warning to not mess with it!? Unfortunately, that video describes adjusting the spring while watching the gears on a tucked-in motored G11.? On the older G11 without the tucked in motors, one cannot watch the gears mesh, at least not that I have figured out.? That aside, and adjusting as best as I can, I adjusted the right worm block (the one farthest form the motor) until it and the worm were tight, then tightened that block with the bolt coming from the rear - the bolt that can't be tight otherwise the whole assembly will not rotate as intended.? I figured out to first tighten that rear block mounting bolt then reattached the long worm cover piece and tighten that to both blocks firmly.? Then, loosen the rear block bolt just enough to allow it to move so the spring can do its job of keeping the assembly, which contains the worm, close to the main gear.? That worked and I saw very good tracking, for a while, but over a fairly short period of time the block slide outward a bit loosening the worm and the RA "drifting" problem returned.? Assuming I'm doing this correctly, the problem I see is that the bolt going through the cover piece that I'm using to keep the block adjusted relative to the worm can't be tightened enough to hold that block in place with the force from the lateral worm movement that exists anytime the mount is driven (tracking), or making RA corrections.?? I'm inclined to fabricate an end plate for the worm cover (somehow) and add an adjuster screw coming out the end (co-linear with the worm) so that that the right block can be adjusted with just the right amount of force on the worm but allowing the assembly to freely pivot around the left block rear bolt, rather than count on Scott's approach of "press on the block with your fingers while rotating the RA shaft, then screw it down", approach.?

Am I approaching this incorrectly, or does anyone have a better idea on how to ensure the right block, once adjusted, stays adjusted??

Larry

Some might recall that about a month ago I asked about a problem with my mount "drifting" in RA for some time after I made a manual correction through the ASCOM interface.? It turned out that was due to a poorly adjusted spring loaded worm assembly.? I contacted Losmandy and in part due to that call, Scott made and posted a video on how to properly adjust the worm - apparently a number of people were having problems with adjustment, or simply ignored Scott's warning to not mess with it!? Unfortunately, that video describes adjusting the spring while watching the gears on a tucked-in motored G11.? On the older G11 without the tucked in motors, one cannot watch the gears mesh, at least not that I have figured out.? That aside, and adjusting as best as I can, I adjusted the right worm block (the one farthest form the motor) until it and the worm were tight, then tightened that block with the bolt coming from the rear - the bolt that can't be tight otherwise the whole assembly will not rotate as intended.? I figured out to first tighten that rear block mounting bolt then reattached the long worm cover piece and tighten that to both blocks firmly.? Then, loosen the rear block bolt just enough to allow it to move so the spring can do its job of keeping the assembly, which contains the worm, close to the main gear.? That worked and I saw very good tracking, for a while, but over a fairly short period of time the block slide outward a bit loosening the worm and the RA "drifting" problem returned.? Assuming I'm doing this correctly, the problem I see is that the bolt going through the cover piece that I'm using to keep the block adjusted relative to the worm can't be tightened enough to hold that block in place with the force from the lateral worm movement that exists anytime the mount is driven (tracking), or making RA corrections.?? I'm inclined to fabricate an end plate for the worm cover (somehow) and add an adjuster screw coming out the end (co-linear with the worm) so that that the right block can be adjusted with just the right amount of force on the worm but allowing the assembly to freely pivot around the left block rear bolt, rather than count on Scott's approach of "press on the block with your fingers while rotating the RA shaft, then screw it down", approach.?

Am I approaching this incorrectly, or does anyone have a better idea on how to ensure the right block, once adjusted, stays adjusted??

Larry