Wrong weight information in "sliced info" and wish for 1 more digit 🙂
Hi,
we are using PrusaSlicer 2.7.1.
When printing small samples, the weight information in the "sliced info" box is off by a factor ~10 when compared to the real weight as measured on a lab scale. Real sample weight is about 6mg, whereas sliced info shows 0.07g. Density of the filament is correct in the filament information.
So:
(1) it would be nice to have 1 more digit for the weight (down to mg)
(2) there is probably a factor 10 wrong somewhere in the calculations
Hope someone can help
/Sebastian
RE: Wrong weight information in "sliced info" and wish for 1 more digit 🙂
This information would be better presented on the Prusa Slicer Git Hub Page. where the developers are much more active.
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: Wrong weight information in "sliced info" and wish for 1 more digit 🙂
Hi Joan,
could you do that for me, please? I don't know github 🙁
Thanks
/Sebastian
RE: Wrong weight information in "sliced info" and wish for 1 more digit 🙂
I could add it for you but first of all I would need to confirm the issue. Could you save your project from Prusa Slicer, (File>Save Project As) and then take the 3mf produced and zip it up and attach it to a reply here.
It MUST be zipped or the forum wont accept it. The github issue will also need the project anyway so it really is needed from you.
I can then print it and weigh the output to confirm and then if I see the same results I will open one on github.
RE: Wrong weight information in "sliced info" and wish for 1 more digit 🙂
here you go. The zip contains the 3mf-project and to images: one a screenshot from slicer, one a picture from our labScale. Please note that there is a factor 10 difference in weight. In the slicer, you can not see milligrams, so one more digit would help 🙂
Please let me know, if you need more info
and thanks a lot in advance 🙂
/Sebastian
RE: Wrong weight information in "sliced info" and wish for 1 more digit 🙂
Sebastian issue opened on redmine https://github.com/prusa3d/PrusaSlicer/issues/12179
Hope its ok.
One thing I did work out is that you can add the weight to your output file name using
{int((total_weight*1000.0))/(1000.0)}g and it will fill in the weight used to 3 digits. So if you modify your output file format string to the following in your print profile
{input_filename_base}_0.4n_{layer_height}mm_{printing_filament_types}_{printer_model}_{print_time}_{int((total_weight*1000.0))/(1000.0)}g.gcode
Then when sliced the name it generates is "Disk 1_0.4n_0.4mm_PLA_MK4IS_19s_0.064g.gcode"
RE: Wrong weight information in "sliced info" and wish for 1 more digit 🙂
Thanks a lot for the solution with the digits -- but the underlying problem is still the error of a factor of 10: 6mg is simply not the same as 0,06 g 🙁 It should be 0,006 g... So Slicer doesn't do a correct calculation internally -- it's not just by giving me one more digit 🙁
RE: Wrong weight information in "sliced info" and wish for 1 more digit 🙂
You do realise that the preview weight also includes everything, including anything printed under custom, that includes the purge line. If you look at the slice preview key you will see the part itself which only consists of perimeters and outer perimeters is listed as 0.01g (one is 0.01g and the other is 0.00g its so small it doesnt even count it). The other 0.06g is the purge line.
S0 0.0065g on your scale against the slicers display of 0.01g is not actually out by a factor of 10. Add your purge line to the scale too and see what you get.