X and Y counterweight? January 18, 2018 02:20PM |
Registered: 7 years ago Posts: 5 |
Re: X and Y counterweight? January 18, 2018 03:12PM |
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Re: X and Y counterweight? January 18, 2018 03:31PM |
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Re: X and Y counterweight? January 18, 2018 04:47PM |
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Re: X and Y counterweight? January 18, 2018 05:13PM |
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Re: X and Y counterweight? January 18, 2018 06:02PM |
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Re: X and Y counterweight? January 19, 2018 02:50AM |
Registered: 13 years ago Posts: 2,470 |
What is your actual problem? If you say the bigger motor doesn't bother you i can only assume that motor noise is already no problem so silent drivers are not helping any more because they are already used. This leaves the mechanics. If you think countermass is the solution i can only assume that acceleration is the problem and produces noise, this can only happen if your mechanical components aren't realy all that good. Cheap bearings, rubbish bushings or cheap linear slides can and will contribute to unwanted movement and noise.Quote
[email protected]
Hi.
I just want a peace and quite printer
I know it takes bigger motors and regarding the belts, I dont think its a problem. They are tough enugh. Its not the belts that brakes, its everything else.
About the effort. Thats why I want to do it.
Re: X and Y counterweight? January 19, 2018 09:13AM |
Registered: 8 years ago Posts: 35 |
Re: X and Y counterweight? January 19, 2018 09:49AM |
Registered: 8 years ago Posts: 622 |
Quote
lukie80
................ Accelerating or decelerating causes force being applied on the guiding rods which in turn bend and relax..............
Re: X and Y counterweight? January 19, 2018 10:15AM |
Registered: 8 years ago Posts: 35 |
I mean that movement on the X-Axis of a Prusa printer bends the smooth rods of the Z-axis.Quote
deckingman
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lukie80
................ Accelerating or decelerating causes force being applied on the guiding rods which in turn bend and relax..............
Huh???? How does accelerating a mass travelling parallel to the guides rods apply a force to those rods?
Re: X and Y counterweight? January 19, 2018 12:45PM |
Registered: 8 years ago Posts: 622 |
Quote
lukie80
I mean that movement on the X-Axis of a Prusa printer bends the smooth rods of the Z-axis.
Re: X and Y counterweight? January 19, 2018 01:04PM |
Registered: 8 years ago Posts: 35 |
Re: X and Y counterweight? January 19, 2018 03:26PM |
Registered: 7 years ago Posts: 1,007 |
Quote
lukie80
Hmm. It could reduce ripple a bit. Accelerating or decelerating causes force being applied on the guiding rods which in turn bend and relax. An acceleration of 1000mm/s^2 and a 0.5kg carriage causes 0.5N of Force which results in a deflection of 60µm at the center of two 8mm 40cm steel rods, according to online calculators.
Re: X and Y counterweight? January 20, 2018 04:23AM |
Registered: 8 years ago Posts: 622 |
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lukie80
Yes. Hold something really heavy and pull it towards you. Your body will move forward. Your body are the Z Rods and the carriage is the heavy object. But I overestimated the effect, I forgot the mass of the X-Motor. So the bending will be much less.
Re: X and Y counterweight? January 23, 2018 11:18AM |
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Re: X and Y counterweight? January 24, 2018 03:16AM |
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Re: X and Y counterweight? January 24, 2018 06:05AM |
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Re: X and Y counterweight? January 24, 2018 07:54AM |
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Quote
[email protected]
point taken.
Then I'll better be the first.
My project is to build a vertical windmill, with wings 3 meters high, each build in 3 modules. So my new printer must ether have a 1 meter hotbed or a building height of 1,1 meter.
Jes
Re: X and Y counterweight? January 31, 2018 07:19AM |
Registered: 11 years ago Posts: 120 |
Re: X and Y counterweight? January 31, 2018 12:08PM |
Registered: 12 years ago Posts: 5,796 |
Quote
[email protected]
My project is to build a vertical windmill, with wings 3 meters high, each build in 3 modules. So my new printer must ether have a 1 meter hotbed or a building height of 1,1 meter.
Re: X and Y counterweight? February 01, 2018 05:13AM |
Registered: 7 years ago Posts: 1,007 |
Quote
the_digital_dentist
Quote
[email protected]
My project is to build a vertical windmill, with wings 3 meters high, each build in 3 modules. So my new printer must ether have a 1 meter hotbed or a building height of 1,1 meter.
Is 3D printing really the best way to make those wings?
This will be something that's outdoors and exposed to sun, weather, and a lot of mechanical force. By the time you get done with the necessary post-processing of the prints, you could have easily made the wings out of other materials/methods that would be more appropriate for the task.
Re: X and Y counterweight? February 04, 2018 06:23PM |
Registered: 8 years ago Posts: 28 |
Re: X and Y counterweight? February 13, 2018 12:20PM |
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Re: X and Y counterweight? February 13, 2018 01:00PM |
Registered: 12 years ago Posts: 335 |
Quote
While you can compensate the implus with this you double the amount of torque needed to accelerate. So yes, it can create smoother movement, at the same time you need stronger motors and more power as well as stronger belts.
Re: X and Y counterweight? February 13, 2018 01:12PM |
Registered: 12 years ago Posts: 5,796 |