Re: Poor guiding with GM8
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Alex,
That's a very nice system.
But it is so different from anything "stock" that I'm at a complete loss to advise you.
Your system drive seems sensible, and as the oscillations are at the worm period, so they could be related to anything like the pulley on the worm or anything the worm is driving.? It cannot be anything related to the geared down (by the pulley ratio) in front of the worm.? Those would be at much higher frequency = shorter period.?
Definitely examine the worm center line height vs the ring gear center height.? ?
Best of luck,
Michael
On Tue, Jul 27, 2021, 6:52 PM Alexander Varakin < avarakin@...> wrote: Hi Michael,
Many thanks for the detailed reply.?
Here is my mechanical setup - I have the reverse worm setup with time gear attached directly to the shaft of the worm. The larger gear is 60 and the smaller is 16.
The aluminum parts form an arrangement, which works as OPW. I drilled and tapped the holes in the bearing blocks in order to make the whole thing as one piece.
So I don't have an Oldham coupler and there is no possibility of misaligning the motor and worm shafts.
I have ABEC 7 bearings and I also tried the Belleville spring, it did not help.
I also tried swapping the worms, looks like it does not help, based on few minutes of testing, before clouds rolled in.?
I have brass worms. I wonder if I should buy new worms.
Right now I am running out of ideas...
Alex
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Michael Herman