Greetings all! I just purchased Cut2D Pro and this is my first post. I have been watching the tutorial videos and now that my CNC is on the way (A CNC Router Parts PRO4824 with their spindle package (3HP, 8,000 - 24,000 RPM) I'm starting to get into starting out on my actual projects in the software. I have come to the section where I'm making my tool crib and setting feeds and speeds for my work. Many years ago I bought that G-Wizard software from CNCCookbook and was using that to determine feeds and speeds but I thought I would bring what I've got here and get your opinions/advice or flat out "whatever you do, don't do that!" I'm excited to get cutting but I'm also looking to avoid mistakes by looking to the helpful community.
So, my situation is that I will be doing two-sided machining on 1/2" Baltic Birch plywood with the aforementioned machine. I will be doing pocket and profiles of course but I also will be doing drilling of a a lot of 1/8" pilot holes that go about 1/4" deep. I was hoping to post the bits I've purchased so far and what the G-Wizard spit out for a workable feed and speed for this plywood and see if it looks good? And then I'd like to ask about the pilot holes.
Whiteside RD1600 Solid Carbide Downcut Spiral. 1/8" CD, 1/4" SH, 1/2" CL (for pocketing and profiles)
Pass Depth: 0.0625", Stepover .05 (40%), Spindle speed: 18,153, Feed Rate: 108 inch/min, Plunge Rate: 53 inch/min
Whiteside RD2075 Solid Carbide Downcut Spiral. 1/4" CD, 1/4" SH, 3/4" CL (for pocketing and profiles)
Pass Depth: 0.125", Stepover .1 (40%), Spindle speed: 18,153, Feed Rate: 137 inch/min, Plunge Rate: 67 inch/min
As for the pilot holes, I want to do 1/8" pilots about 1/4" deep. I was planning on just peck drilling with the RD1600 but then I was reading in a lot of places that you never want to use a downcut bit for pilot holes since that could start a fire since the chips have nowhere to go? So should I just get the upcut version of the RD1600 (the RU1600) to do those with? Or would I be okay by doing very small pecks with the RD1600 (thus avoiding buying another bit and having to do another manual tool change)? Again, these pilots are going to be 3/8 at the absolute max. And should the spindle speed and plunge be different on this bit for a peck drilling toolpath? Or can I just use the same spindle speed and plunge?
Thanks in advance, I'm excited to be part of the Vectric community!