I’m a total newb when it comes to CNC stuff. I tried to search the forums but couldn’t get my wording right i suppose.
I just want to know what went wrong with this relief carve. I used a grayscale image in Luban with a ball end mill at a depth of 5mm. Should I have gone deeper? Did i use the wrong bit?
I just don’t understand why the lines are there.
Deeper just increases distance between highest and lowest points.
What was your density set to?
-S
Which setting is density in luban? What is it called? Is that the “Dot” I left it set to its default which was 5
Thank you for asking this question. I too am completely ignorant (or almost) about all of this stuff. I will wait with you for someone to bring clarity to your problem. I will “eavesdrop”.
If you want to use the ball-end bit, you can set the Allowance to 2mm and that will do the rough carving.
And then use the V-bit mill to do precise milling and set the density higher.
if i see this picture correctly, then your step over need to be less… like if you use the 3mm ball end-mill your step over should be 0.5mm or less… max rpm and slower cutting speed… especially if you use one program to rough and finish a same time… it will take longer, but you should get the end result as a polished finish… depth only make the picture deeper…
as being said Luban really don’t give you much control, so it’s best if you use (and i hate even saying this, but with this machine no choice ) fusion 360
Luban doesn’t have a step-over setting. The equivalent is “density” which would be equivalent to “resolution” in a graphics program. Higher number = more detail.
Fusion 360 gives you much more control, but there is a definite learning curve.
-S
to me… luban is a week and very confusing program… 
