Mpcnc

[Roberts_Clif]

After Printing the MPCNC Model Parts they were measured an have a error rate of within 1/2 percent, this means that all printed models are correctly printed.
What surprised me was that none of the models that actually Stayed stuck to the build plate showed signs of warping.
Only a few had problems though these problems were not to adhesion they attributed to the Proximity sensor vibrating loose ...
This in turn changed the Z-Height causing the adhesion problem.

Had the most problems at the hardware store not correctly correctly placing the parts in the correct bins.
Will need to be more careful and measure when returning for replacements.

[curious aardvark]

good luck - fascinated to see this thing working. :-)

first layer print speed 40 all remaining layers 76 percent.

what does that actually mean as far as print speed goes - 76 percent of what ?

[Roberts_Clif]

As far as I can tell in Cura when you hover the cursor above the print speed 40% with my settings is 4.5mm^3 Per Second and 76% is 8.5mm^3 Per Second.

With a .4mm nozzle at a layer height of .28mm. It further States that the Print will complete at # of hours and it does.


Print Speed.jpg

[curious aardvark]

lol right.
I'm used to print speeds being in mm/s - which I can visualise.
cubic mm per second on the other hand - just isn't something that's easy to understand.

Interesting that it says an ultimaker can just about do 150mm/s. My ?200 delta can do that without any problems :-)

[Roberts_Clif]

It is sometimes confusing.
You can see it the previously posted Photo I am printing in the Yellow.
It clearly shows that printing over 8.0mm^3 Per second could cause filament slippage.
With my Settings that Max speed percentage is 71 being 8.0mm^3 Per second, an 72 being 8.1mm^3 Per second.
I have successfully printed many models at over 100% " (11.2mm^3 Per second) " using PLA though have yet to venture this on ABS.

I prefer to stay closer the upper limits I determined make the best Models. 8.0 - 9.6mm^3 Per second.

[curious aardvark]

you should be able to change the units to mm/s - I'd be interested to know what your actual print speed (not volume) actually is :-)

[Roberts_Clif]

I have never calculated it only took the numbers from Cura do you have a formula

Found this V=pi*radius^2*print speed = mm3/s.

[curious aardvark]

don't need a formula - cura will have an option to show either speed or volume. just switch to speed. see what it is and switch back :-)

[Roberts_Clif]

Assembled the Middle Assembly today still need the conduit to assembly the remaining frame Assemblies.

Middle Assembly.jpg

[curious aardvark]

neat :-)
Took a while to work out what goes where lol