Clock runs for several weeks , maybe a month and stops. After awhile the weight causes the front plate to sag just enough to stop the clock. If I place my hand under the front plate and give just a little upward pressure it runs but as soon as I stop the ever so slight upward pressure it stops. I then removed the front plate and widened the hole just a hair for the arbor that has the hands. Clock then ran for a few weeks and then repeated the problem. This has happened on two different clock which leads me to believe that it has happened to others. Has anyone experienced this problem and if so have they found a solution?
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Try using the next larger screw, don’t tighten it to much. If that doesn’t work reprint the frame.
I meant to say that it is hanging on a screw. I realized that one of the screw holes on my frame is stripped. I think this is making my frame sag a bit causing this problem. Do I have to re-print the entire frame or is there an alternative? I was thinking of making something that would push up on the frame but that would be difficult and would look bad. The only other thing I can think of is putting epoxy glue in the hole. It is the bottom right hole the screw seems to do basically nothing for holding the frame. Thanks for your help.
All of my wall clocks have a horizontal support beam near the top to support the full weight shell. The mounting screw needs to be adjusted so the upper standoff is tight against the wall. The horizontal support beam should be very solid. The lower adjustable standoffs are then set so they touch the wall. They don't do much more than hold the frame in the position defined by the horizontal support beam. The vertical frame components simply hang below the horizontal support beam.
If the mounting screw is too loose, the top support beam tilts downward and the thin vertical frame segments bend. The frame will bend into a parallelogram shape and skew the arbors. Readjusting the hanging screw depth and the adjustable standoffs should be the preferred solution.
Note that everything starts with an adjustment of the hanging screw. If the clock is hung on a nail, the weight will eventually pull out the nail and the support beam will tilt downwards. I hesitate to call this "frame sag". Maybe it should be called "support beam tilt" or "frame not held tightly against the wall". The effect looks like the frame is sagging, but I have never actually seen the horizontal support beam is actually bending.
Steve