That is probably a bit long winded for such a simple comparison but figured this may help someone in the future! I personally will continue printing at 0.02 as I do not have a lot of painting time these days and would rather let a print take 4 times longer to get better quality!Įdit: Both models were sliced and auto support generated in ChiTuBox, a user below reported that these print times may be unusually long, so take that as you may.ĭue to a few comments and me only roughly knowing what I am doing here are my ChiTuBox settings for slicing a 0.02 model, I compared it to a 0.05 model slice time without adjusting curing time as 12 seconds seems to be right for 0.02 but I am not sure of a good time for the 0. Both prints where then rinsed with warm tap water and moved to the sun to cure for 24 hours.Īfter curing the prints were primed with Rust-Oleum flat black primer, two coats each plus a bit of touch up in spots the primer missed such as under arms and pants. The alcohol was agitated in a stirring motion for both. The 0.02 print took approximately 16 hours to printīoth prints were removed from the build plate straight into a container of 99% IPA and washing in that for approximately 5 minutes each then transferred to another container of 99% IPA for another five minutes. The 0.05 print took approximately 4.5 hours to print Based on this definition, the layer height and the z-dimension of resolution are the same. Layer height typically ranges from 0.05mm to 0.5mm (0.002 to 0.02 in). Depending on the machine in use, you measure layer height in micrometers or millimeters. I wanted to see the quality difference between the two, the reason I did not do a 0.01mm layer height is that the printing time was so long I figured 0.02 may be a good mix of quality and time to print.īoth were printed in eSun White Bio Resin at much the same settings (small exposure time tweaks for the layer height). Layer height is the thickness of each layer that your 3D printer deposits on your print bed. Hi everyone, as I am new to the resin printing world I wanted to do a comparison for myself between 0.05 and 0.02 mm layer heights. To determine the number of pixels you’ll need to have a professional-looking print, you would multiply the height and width of an A4 paper by 300 dpi. Drop a comment below if you encounter any difficulties.To start here is the album of the comparison shots : (feel free to ignore the hair in one of the mouths, I somehow missed it while taking photos but it was easily removed by a pair of tweezers and did not effect the model in any way) The final calculation will be $3.34 \, – 0.04 = 3.30$ cm, which is the same as my method. Hence, you will have to SUBTRACT 0.04 cm from ALL measurements in order to get the true measurement. Normal method: Since the zero error is +0.04 cm, this means that all measurements taken by the vernier calipers will be larger by 0.04 cm. This means that once you have determined the nature of the zero error (positive or negative), you can just subtract the zero error and be sure that your final answer is correct.Ĭonsider a zero error of +0.04 cm. Resolution is best explained in the digital display. If you want to print 0.02 you would require an immensely small nozzle, probably planetary gears on the Z axis motor to increase resolution, calibrate your extrusion to a tee. 2.3 Frequency Resolution (f) Spacing between samples in the frequency domain. 2.2 Spectral Lines (SL) After Fourier transform, total number of frequency domain samples. Whatever the least count is, the display will show it to you as the resolution. 2.1 Bandwidth (Fmax) Highest frequency that is captured in the Fourier transform, equal to half the sampling rate. Some printer manufacturers solve the problem by specifying two values for the dpi. So basically, they are the same at most usage. The HP DeskJet Plus 4120 offers a print resolution of 4,800 x 1,200 dpi. The subtraction is done in the above case is to have an elegant way of obtaining a resultant addition: $3.34 + 0.04 = 3.38$ and to make it COMPATIBLE with positive zero error. Resolution is the smallest change that an instrument can display, which is the least count. Hence, you will have to ADD 0.04 cm to ALL measurements in order to get the TRUE measurement. Then divide each of these numbers by your desired PPI countwhich, as explained above, is often 300 PPI. Since the zero error is -0.04 cm, this means that all measurements taken by the vernier calipers will be SMALLER by 0.04cm. If you do not understand the subtraction of the negative zero error from the measurement, please read on. Zero error: – 0.04 cm (negative because the vernier scale is to the left) (Meaning: get rid of the zero error in the measurement or take into account the zero error) The reading on the top is the measurement obtained and the reading at the bottom is the zero error.
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