Changing the extrusion multiplier and the E steps/mm effectively do the same thing. However, the extrusion multiplier can be customized on a per filament basis. For instance, if you are printing flexible materials which require a higher flow rate than normal.
There is an option called extra length on restart, which you can use to help prime the nozzle when unretracting. Another option is to increase your number of perimeters.
You found the right solution with infill overlap.
Typically we use 15 to 20 mm/s for the first layer speed.
Have not seen this before. If you can determine the exact steps to reproduce this issue then we can investigate.
Yes, this is firmware. There is no way to give a feedrate with a G28 command.
check out your program file folder also x86 . and ensure the program was completely wiped , i had issues too in sim software packs , some seem to leave empty folders and drivers behind also com port dramas . hope it helps im more a com dude as in the 3d world im not even started yet
The data folder is located at C:\Users\$USERNAME$\AppData\Local\MatterControl (AppData may be hidden). Its location cannot be changed.
In ...\Local\MatterControl\Library\CloudData, you'll find the local versions of the files uploaded to the Cloud Library. The filenames are nonsensical characters, so sort by 'Date Accessed' to find recently added files, since 'Date Created' is only whenever the original file was created.
At this time, moving files to folders is not supported (*shields head from random objects being thrown at it* -- yes, I know), but it is on the list of future improvements to this system. In the meantime you'll just have to download files, then delete them, and finally re-upload them to the folder you want them in.