It is true that configuring your machine takes some doing with EMC, but what isn't talked about much is it takes some doing configuring your machine with Mach3 as well. So if EMC wins out over Mach3 in performance (which it does) then it's worth serious consideration just living with the learning curve and getting used to EMC in my opinion. Beyond that you're simply running G-code that you feed to it, sometimes overriding, pausing and resuming and either controller does that just fine. What you need in a machine controller is a simple enough way to set up your tools and work coordinates. Over time I've come to think that Mach 3 looks much overly busy to me. And I guess in some ways it is, but not nearly as significantly different as I thought at first. Personally what I've found comparing Mach3 to EMC (LinuxCNC) is pretty much just the Mach3 user interface looks more like "real" CNC machines' controller screens so it seems at first glance that it's more user-friendly. I tried but had stop for fear of killing myself. I keep hearing that LinuxCNC is the bomb but I'm too un-geeky to learn it. ![]() As in, if the drive belt broke, or the drive motor popped a breaker or let the magic smoke out, or the spindle jammed against the work/tool, can Mach 3 be set to go into a fault mode and shut everything off? (Or at least stop trying to feed a tool into a stalled workpiece.) Third, we'll likely be using Mach3, since he's more used to that (and I'm not familiar with any of them ) and we were wondering if it had the ability to use the RPM/signal data from a spindle encoder as a fault indicator. Or better yet is there a commercial piece that would be better suited (but that doesn't cost $500.) Second, if we made the above piece, how would one translate that signal into something the controller/computer/boxful-o'-magic-gnomes could understand? Or would a typical controller be able to accept a simple input pulse signal? Would such a thing be accurate enough if I had, say, 100 holes (with one gap/skip for positioning) or even 200 holes? (Which might require a large disc or very small holes.) ![]() We were talking about making an encoder wheel, by simply drilling X number of holes in the rim of a thin aluminum disc, and using a simple IR breakbeam sensor. (I know just the basic RPM units only have one or two magnets, which isn't enough for an accurate position.) urethane spindle liners, CLICK HERE.A buddy and I are working (intermittently) on a typical homebrew lathe conversion to CNC, and I'm looking for a little info.įirst, what would be a good, reliable, and fairly accurate encoder to put on the spindle, both for basic RPM, and for positioning, for operations like threading. To find out more on when to use metal spindle liners vs. Quick, easy and a high quality connection. The JF Berns standard two-piece liner incorporates a dove-tail design so that less room is required to insert or remove the liners. There is not enough room to extract a full length liner. Two-Piece Liners are required when the bar feeder has a limited retract area. Each CNC lathe will require the purchase of one quick change adapter. The price of quick change spindle liners is the same as our standard liners. ![]() ![]() To remove the liner, just pull the spring loaded pin and reverse the procedure. This will automatically lock the liner in place.
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