![]() ![]() ![]() That’s just slightly more than 1/8"/second. ![]() 15 inches/second, which is far slower than I believe I plunge by hand without any issues. The plunge rate also seems a bit too conservative to me. Why such a shallow step down? If doing carving or detailed 3D work I can see it, but for profile and pocketing or larger items it seems very shallow? I’m hopeful 3/8" would be feasible, and of course it have a dramatic affect on overall cut time. ![]() The step down of 1/8" seems too shallow to me. I have a feeling 80 might be more in line with what the Longmill could do and more appropriate for it’s design, but given that it’s almost double the listed speed (acknowledged as a conservative place to start), I’m curious if 80 ipm (2032mm/min) is possible on the Longmill? I turn up my recent cut to 180 ipm before the chip load and sound was ideal. 80 ipm for Plywood can be far too slow on larger machines. There are some interesting tid-bits in this older Wired article: You Suck at Using a CNC Router | WIRED But like all information on CNC feeds and speeds, I detect some comments that I’ve already experienced are incorrect. I saw the reference to the lead screws being a drag on overall speed due to the reduction factor they have, but I’m hopeful there is more juice available? The loaded cutting speed I can’t really comment on as I haven’t used the machine yet, but I am hopeful it can go to at least twice that speed? 47 is on the slow side for sure. These seem quite conservative to me (which makes sense), but are they? General plywood is listed at 1200mm/min (~47 ipm), with a 250mm/min (~9.5 ipm) plunge rate, and a 3mm step down. There are some Sienci published feeds and speeds available for wood here as a general starting reference: 1. Lighter work loads (hobby, prototype, or 3D) call for a smaller motor.I’d like to get a sense of the capabilities of the Longmill for cutting 3/4" Baltic Birch, which is often used for shop projects, jigs and furniture making. In either case the speeds available are not slow enough for machining of metals, however with proper bits, alloys and cooling methods some people experience success with non ferrous metals.The strength or power of a router is rated in HP (horse power) Generally more is better. The harder you plan to work the machine (commercial environment like a cabinet shop) the more HP you will want. Every bit has an ideal range of speed or RPMs it needs to operate within.Ī Spindle has infinitely variable speeds ranging from around 5,000 – 25,000. The speed at which a Router spins the bit is called its RPM (revolutions per minute). The steel and solid aluminum Z-axis also rides on linear rails. The gantry is a heavy custom extrusion, precisely machined for sturdy linear rails. Uses include interior and exterior decorations, sign boards, wood frames, toys, and moldings, as well as larger objects like furniture, boats, and even houses.įully assembled and ready to work when rolled out of the shipping crate, the design makes use of a rigid, stationary gantry over a moving table. CNC routers can be used to cut wood, foam, and plastics, but most hobbyists use it for carving wood. Router bits of various shapes and sizes are used for achieving different cutting results. CNC stands for computer numerical control and a CNC router only functions when it's hooked up to a computer loaded with software to direct the tool path of the machine. A power tool router is affixed to the machine that directs its X and Y coordinates as it's cutting. A CNC router is a computer-controlled cutting machine. ![]()
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