Hi, I'm not hiding I tested it but I failed due to lack of experience.
I am at the stage of education and I have a MILL ABC plotter, I know all the problems related to the stiffness of this machine, but I assume that at the stage I am at and for the money I spent it is perfect
There are 3 things I'm not quite good at.
1. Cutting out a perfect circle in plywood 18. The one I am cutting, unfortunately, is slightly flattened at a length of 3-4 mm. and regardless of whether this circle is 5, 10 or 20 cm. I'm wondering if the G-Code that Estlecam generates isn't a sham. I use the cutter https://cnc-sklep.pl/pl/p/Frez-CE-2F-6x22x6x70-GL/288 with a feed speed of 1800 mm/min, the smoothest cut I get is the pitch set every 3 mm. As for the spindle speed, I have no idea because it is a DWT 600W spindle and the adjustment is locked at 6 I did not have time to undress and unlock it. Spindle speed range is from 12 - 27 k/min. I combined with a slower feed from 900, but the smoothest edge was at 1800. I plan to buy the same milling cutter for testing, but with a 3-blade one, I'm more concerned about the smoothness of the cut material, so that you don't have to spend a lot of time on machining.
2. Chamfering with an R4 rounding cutter https://cnc-sklep.pl/pl/p/Frez-OLJ-z...-0706-0001/437. The problem here is that at the point where the cutter enters the material, it is too chamfered into the material and this edge seems to me to be of poor quality. I have the feed set to 1500, spindle speed as above. In general, it may be due to the setting of the tool in Estlecam, but I do zero on a 1mm plate because if I do it directly on the material, I have cut edges as if the tool went too deep.
3. I cut holes with this finishing cutter, it's probably a mistake and there are probably better and faster solutions. For a moment I was thinking about a planning cutter because drilling is not through and cutting a hole with a diameter of 10 cm and a depth of 11 mm takes well over 15 minutes in a spiral mode at a feed rate of 1800 mm / min. In addition, I set Estlecam to do it by going down to 5.5 mm, but it did it 3 times 4 mm and it came out too deep.
Is there any smart table that tells you what rotations to set for the feed and the type of material?