Escapement bounce
Hi Steve. Here is the video showing the bounce as I shared in an email to you. Let me know your thoughts. The clock runs great and keeps time. Thanks!
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General Discussion
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Dreaded Hull line
Steve, I'm getting the dreaded Hull line on my box bases. Have tried everything that's out in there on the Internet to try and fix it. The floor always seems to shrink where the floor and walls meet. But yet all the bases I've ever printed of your clocks print out flawless. Is there a secret I'm missing. I've tried making the base box in Fusion, Tinkercad, Bambu studio added fillets, chamfers, change thickness of walls nothing works.
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Steve
4 days ago
I was having a really tough time getting the base to stick when designing SP7. Below is a photo from the bottom of an early experiment. Lots of things are going on. The red arrow shows the characteristics of the first lifting off the bed. The blue arrow shows the second lifting off the bed. It is likely more pronounced because most of the printing occurred after the second lift.
The blue squiggly line shows the first layer was probably pushing too hard into the bed. I may have overcompensated for parts not sticking by adjusting the first layer height to be too low.
There may have been other things going on as well. Cheap filament, wrong temperatures, dirty build plate, etc. It was printed on a Prusa MK3 using the default slicer settings for generic PLA. More recent slicer defaults have increased temperatures slightly. First layer speeds and extrusion rates may have also changed. I have also gotten better at adjusting the first layer heights for the proper amount of squishing without smearing.
The main reason for the "X" shaped design in SP7 was because of the layer adhesion issues I was having at the time. The shape quickly becomes narrow as it gets taller so there is very little force pulling trying to pull the corners off the build plate.
Settings
Is it just me ... ? In my profile I can see settings for some things like notifications. Most of them have a left/right slider thing, which changes colour SLIGHTLY. It is COMPLETELY unobvious which is ON or OFF. This is quite typical of this sort of (stupid?) control. You spend longer working out what it means than anything. Could someone please enlighten me? Even better change the control to something more obvious?
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Steve
24 gru 2025
Unfortunately, those controls are built in the Wix hosting environment where I have little control over the functionality. There are other placed to ask questions such as MyMiniFactory or YouTube.
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The escapement operation looks great. The flat "dead" surfaces make contact with plenty of lock. It may even have enough lock with the 101% scale.
The slight bounce may just be excess energy from the extra drive weight added when you were debugging the initial problem. It would likely run just as well with a smaller drive weight, but I would let it run as is for a few days.