Only the extruder needs to be accurate February 03, 2017 06:32PM |
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Re: Only the extruder needs to be accurate February 03, 2017 07:04PM |
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Re: Only the extruder needs to be accurate February 03, 2017 08:40PM |
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Re: Only the extruder needs to be accurate February 04, 2017 02:21AM |
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Re: Only the extruder needs to be accurate February 04, 2017 01:19PM |
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Quote
o_lampe
To move the assembly that follows the nozzle you'd need a separate XY gantry. Maybe Z could be coupled.
There is the "tripteron" thread that shows a possible light and easy possibility to implement that. It lacks of accuracy and tends to wobble, but in this case we don't care.
All you need is separate carriers on the rails which are coupled with the nozzle gantry in a vibration damping way. Maybe the arms are dampening enough already?
Re: Only the extruder needs to be accurate February 04, 2017 02:49PM |
Registered: 12 years ago Posts: 2,470 |
This is actualy a fundamental rule when designing printers. There is however always a balance of how much effort/money you are willing to spend.Quote
aardvark
Maybe this is the wrong assumption but if the moving parts to direct the extruder nozzle was feather light it would allow more speed without affecting accuracy.
Re: Only the extruder needs to be accurate February 04, 2017 03:35PM |
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Re: Only the extruder needs to be accurate February 04, 2017 06:49PM |
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Re: Only the extruder needs to be accurate February 05, 2017 02:03AM |
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Quote
aardvark
Quote
o_lampe
To move the assembly that follows the nozzle you'd need a separate XY gantry. Maybe Z could be coupled.
There is the "tripteron" thread that shows a possible light and easy possibility to implement that. It lacks of accuracy and tends to wobble, but in this case we don't care.
All you need is separate carriers on the rails which are coupled with the nozzle gantry in a vibration damping way. Maybe the arms are dampening enough already?
Ideally you would want an identical layout so that both systems would have the same control circuits.
Re: Only the extruder needs to be accurate February 05, 2017 08:43AM |
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Re: Only the extruder needs to be accurate February 05, 2017 11:21AM |
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Re: Only the extruder needs to be accurate February 06, 2017 08:42AM |
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Quote
Srek
With that you eliminate the weight, but not the mass! It is still the printhead that would have to accelerate and decelerate the cooling assembly, the sponge will dampen the action, but it does not eliminate the forces needed. You will need to give the cooling assembly an own drive system.
Re: Only the extruder needs to be accurate February 06, 2017 09:02AM |
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Re: Only the extruder needs to be accurate February 06, 2017 11:00PM |
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Re: Only the extruder needs to be accurate February 06, 2017 11:06PM |
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Re: Only the extruder needs to be accurate February 07, 2017 02:54AM |
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Re: Only the extruder needs to be accurate February 09, 2017 03:01PM |
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Re: Only the extruder needs to be accurate February 09, 2017 08:06PM |
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Re: Only the extruder needs to be accurate February 09, 2017 08:11PM |
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Re: Only the extruder needs to be accurate February 10, 2017 04:18AM |
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Re: Only the extruder needs to be accurate February 11, 2017 01:14PM |
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Re: Only the extruder needs to be accurate February 12, 2017 02:02AM |
Registered: 12 years ago Posts: 20 |
Quote
deckingman
Why bother with any of this? It is already possible to build machines that can accurately and reliably move the print head faster than one can melt filament - even with a Volcano hot end. What is the point in building a machine capable of extreme print speeds when, because of the laws of physics you need to allow enough time for filament to melt? Just my twopence worth..........
Re: Only the extruder needs to be accurate February 12, 2017 05:28PM |
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Re: Only the extruder needs to be accurate February 12, 2017 08:22PM |
Registered: 8 years ago Posts: 601 |
Quote
aardvark
The fastest 3D printer The D3D.ONE-EVO @ 450mm/sec (reliably)
$1800
I'm just proposing a simpler cheaper way of getting to those speeds.
[youtu.be]
Re: Only the extruder needs to be accurate February 13, 2017 03:41AM |
Admin Registered: 16 years ago Posts: 13,886 |
Re: Only the extruder needs to be accurate February 13, 2017 07:19AM |
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Re: Only the extruder needs to be accurate February 13, 2017 10:01AM |
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Quote
DjDemonD
.........................Surely what we need is to be thinking like the 2D printer, multiple nozzles, even just for infill this would save a lot of time.
Re: Only the extruder needs to be accurate February 13, 2017 10:21AM |
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Re: Only the extruder needs to be accurate February 13, 2017 10:28AM |
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Re: Only the extruder needs to be accurate February 13, 2017 10:39AM |
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