Hi, sorry for asking again the same question but i really cant find the answer in the other topics. I will tell you what i do( and how much i understand of it) and i really hope someone can guide me in avoiding the problem if it is possible.
The problem is that the wood is fuzzy in some places where the engraving tool moves in a certain direction i guess, and the opposite mirroed location the same.
The first picture is the roughing part where it roughs like crazy but i know the 8mm endmill is dull and it doesnt really matter i guess but you can see how it does it in just half of the project.
rough stage
The second is after the fine finish with the 6mm ballnose which i think is not dull. There are just these 4 places where some fuzzing remained. IT is easy to remove it by hand but for more complex and smaller projects is really hard and annoying so i try to understand why it is happening.
fine finish
The wood is very soft. I think it is called lime in english.
So here are the speeds i used to use.
rough finish: spindle speed 200 ( i dont know what that 200 is measured in) and feed rate 4-5000
fine finish: spindle speed 200 and feed rate 6000+
The result were kind of the same maybe a little bit worse than what you see in the pictures with the current speeds. With those speeds the left over material was tiny wood shavings.
Current speeds (experimental)
rough finish:spindle speed 300 and feed rate a little bit slower 3500
Fine finish: Spindle speed 300 and feed rate 4500-5000
The left over material is fine dust.
Any help will be appreciated.