Havy shaking when printing fast

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sinistergrief
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Havy shaking when printing fast

Post by sinistergrief » Fri Sep 06, 2013 12:05 pm

Hey! My up plus2 shakes very heavy, when i am printing fast. Sometimes also, when printing Fine if there are short distances. When the Wohle Printer, Even the table shakes, i have to throw the Part away, because there are errors in structure. What can i do?


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DrewPetitclerc
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Re: Havy shaking when printing fast

Post by DrewPetitclerc » Fri Sep 06, 2013 4:27 pm

Tighten everything up and switch to my style of bed tramming (leveling):
http://pp3dp.com/forum/viewtopic.php?f= ... be6f#p5471
Make sure to always tighten, never loosen, if your bed is solid in relation to the nozzle then when the system shakes the relative distance of nozzle to print will not be effected as much as the whole system will oscillate at the same rate.

Regards
Drew
Drew Petitclerc
Petitclerc Designs
Owner/Senior Principal Designer, prototype, tooling and test equipment design and 3D printing
http://flash-graphics.deviantart.com/
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wackojacko
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Re: Havy shaking when printing fast

Post by wackojacko » Fri Sep 06, 2013 7:55 pm

Also print on a solid table and ensure the printer sits firm on it
Bruce
http://www.3DPrintingSystems.com

Need help with your printer, check out our Youtube channel.
https://www.youtube.com/user/3dprinting ... /playlists

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JuliaDee
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Re: Havy shaking when printing fast

Post by JuliaDee » Sat Sep 07, 2013 12:47 am

DrewPetitclerc wrote:when the system shakes the relative distance of nozzle to print will not be effected as much as the whole system will oscillate at the same rate.
I've often wondered about that: better to let everything shake together to maintain relative distances between moving elements, or try to bolt the whole thing to a concrete table? The relative distances hypothesis makes some sense, but there's got to be some "ringing" going on that can't help print quality.

Not that I actually have a concrete table with which to try the experiment...

julia

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DrewPetitclerc
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Re: Havy shaking when printing fast

Post by DrewPetitclerc » Sat Sep 07, 2013 4:05 am

At work our first machine we strapped to an actual concrete block but that was because we thought the thin metal shelf of the cabinet it was kept in would allow too much bounce, well after many years and prints we moved it to a cubicle desktop (no concrete block) and not much change have I noticed in print quality, also the fact that my home "Up Plus Pro" has been resting on a tiny folding wiggly table intended for sewing machines all these years and I get better prints out of it than at work, partially due to my "Pro Mods" I know but still I stand by what I know. :geek:

My job the last 30 years has been designing large robotic systems that put together the hard drives in your computers and the cloud, they do their operations in under 10 seconds, so I know about system vibration, settle time, ringing, mean time between failures and tolerance issues, lack of rigidity of the mechanical systems is the plague of these home builds and most all of the "ready to print" systems including the Up Plus and Mini (just had a little bile come up saying the word Mini) suffer from these issues. :lol:

Sorry if I sound a little preachy about these issues, at least some of my recommendations were taken seriously by Delta and Afinia and I've seen some improvements in the newer machines (Up Plus only) but I've seen far more useless and even worse mechanical dead ends that only make the machine more prone to bad part creation and mechanical failures. :ugeek:

Regards
Drew
Drew Petitclerc
Petitclerc Designs
Owner/Senior Principal Designer, prototype, tooling and test equipment design and 3D printing
http://flash-graphics.deviantart.com/
http://www.thingiverse.com/DrewPetitclerc

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JuliaDee
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Re: Havy shaking when printing fast

Post by JuliaDee » Sat Sep 07, 2013 2:39 pm

Hi Drew,

I wasn't questioning your expertise, just musing over the "let it shake or try to stop it from shaking" question. Good to know you actually tried to hold one steady and didn't notice a difference in print quality.

I've also come to have a lot of respect for pp3dp/Delta Micro's engineering, both hardware and software. Sure, there are tweaks and improvements we'd like to see, but overall they've done a great job for the price point. And I really hope they're working on a 200x200x200 (or bigger) model :)

julia

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