Re: X Y axis accuracy doubled. September 17, 2011 02:24AM |
Registered: 16 years ago Posts: 33 |
Re: X Y axis accuracy doubled. November 04, 2011 05:41AM |
Registered: 12 years ago Posts: 30 |
Re: X Y axis accuracy doubled. November 04, 2011 07:07AM |
Registered: 13 years ago Posts: 1,780 |
Re: X Y axis accuracy doubled. November 07, 2011 12:43PM |
Registered: 13 years ago Posts: 177 |
Re: X Y axis accuracy doubled. November 08, 2011 01:58AM |
Registered: 12 years ago Posts: 30 |
Re: X Y axis accuracy doubled. November 08, 2011 08:08PM |
Registered: 12 years ago Posts: 139 |
Re: X Y axis accuracy doubled. November 08, 2011 08:10PM |
Registered: 13 years ago Posts: 1,780 |
Quote
Madkite
Having tested the accuracy quite thoroughly. The extruder system available are very accurate. The thread consistency is almost perfect and so if you have all the settings correct you can easily reproduce the accuracy to the limits of the X Y axis.
Re: X Y axis accuracy doubled. November 09, 2011 04:02AM |
Registered: 13 years ago Posts: 7,616 |
Quote
The step angle accuracy of a NEMA 17 is typically +/-5% of a 1.8 degree step.
Generation 7 Electronics | Teacup Firmware | RepRap DIY |
Re: X Y axis accuracy doubled. November 09, 2011 04:26AM |
Admin Registered: 17 years ago Posts: 7,879 |
Quote
With half the force required to accelerate the extruder, the frame bends only half as much when printing - approximately.
Re: X Y axis accuracy doubled. November 09, 2011 04:49AM |
Registered: 14 years ago Posts: 3,742 |
Re: X Y axis accuracy doubled. November 09, 2011 07:53AM |
Registered: 12 years ago Posts: 30 |
Re: X Y axis accuracy doubled. November 09, 2011 08:01AM |
Registered: 13 years ago Posts: 1,780 |
Quote
Traumflug
One thing you've forgotten here is, the geometry of a part isn't related to the geometry of the steps. Some specific geometry could require 100.49 steps, so the closest you can do is to move either 100.00 steps or 101.00 steps, both times missing the target by about 0.5 steps. This 5% figure might be right, but doesn't really matter.
Standard Mendels with 1/16 microstepping have currently about 80 steps/mm, so the (theoretical) accuracy is 0.0125 mm. The system proposed here doubles this to 0.00625 mm.
Quote
a : the process or capability of making distinguishable the individual parts of an object, closely adjacent optical images, or sources of light
b : a measure of the sharpness of an image or of the fineness with which a device (as a video display, printer, or scanner) can produce or record such an image usually expressed as the total number or density of pixels in the image [a resolution of 1200 dots per inch]
Quote
wikipedia
Resolution is given in layer thickness and X-Y resolution in dpi. Typical layer thickness is around 100 micrometres (0.1 mm), although some machines such as the Objet Connex can print layers as thin as 16 micrometres.[9] X-Y resolution is comparable to that of laser printers. The particles (3D dots) are around 50 to 100 micrometres (0.05-0.1 mm) in diameter.
Re: X Y axis accuracy doubled. November 10, 2011 03:05AM |
Registered: 13 years ago Posts: 177 |
Re: X Y axis accuracy doubled. November 10, 2011 06:02AM |
Registered: 12 years ago Posts: 139 |
Re: X Y axis accuracy doubled. November 10, 2011 07:41AM |
Registered: 13 years ago Posts: 177 |
Re: X Y axis accuracy doubled. November 10, 2011 12:19PM |
Registered: 13 years ago Posts: 177 |
Re: X Y axis accuracy doubled. November 10, 2011 05:37PM |
Registered: 13 years ago Posts: 615 |
Re: X Y axis accuracy doubled. November 10, 2011 06:15PM |
Registered: 13 years ago Posts: 1,780 |
Re: X Y axis accuracy doubled. November 10, 2011 07:42PM |
Registered: 12 years ago Posts: 139 |
Re: X Y axis accuracy doubled. November 14, 2011 07:57AM |
Registered: 13 years ago Posts: 177 |
Re: X Y axis accuracy doubled. November 14, 2011 08:05AM |
Registered: 13 years ago Posts: 1,780 |
Re: X Y axis accuracy doubled. November 14, 2011 12:48PM |
Registered: 13 years ago Posts: 177 |
Re: X Y axis accuracy doubled. November 20, 2011 05:33AM |
Registered: 13 years ago Posts: 177 |
Re: X Y axis accuracy doubled. November 20, 2011 06:33AM |
Admin Registered: 17 years ago Posts: 7,879 |
Re: X Y axis accuracy doubled. November 20, 2011 06:44PM |
Registered: 13 years ago Posts: 177 |
Re: X Y axis accuracy doubled. November 20, 2011 09:00PM |
Registered: 13 years ago Posts: 1,780 |
Re: X Y axis accuracy doubled. November 21, 2011 02:46PM |
Registered: 13 years ago Posts: 615 |
Quote
brnrd
Very nice design Emmanuel. With your Vert X axis
configuration, what what is your build height?
Re: X Y axis accuracy doubled. November 23, 2011 03:03AM |
Registered: 13 years ago Posts: 177 |
Re: X Y axis accuracy doubled. November 24, 2011 05:53AM |
Registered: 13 years ago Posts: 384 |
Re: X Y axis accuracy doubled. February 19, 2012 04:58PM |
Registered: 13 years ago Posts: 581 |