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Type: Posts; User: burbingus

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  1. Re: Key or slot cutting mill with edge radius

    No problem, good luck!
  2. Re: Key or slot cutting mill with edge radius

    Hey Dave,

    It looks like Harvey Tool has some cutters that might be what you're looking for. Check out this link:

    Harvey Tool - Carbide Keyseat Cutters - Full Radius

    Harvey Tool - Carbide...
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    Re: Teensy Weensy Drilling op help?

    Second what ERUS said. Spot drill first with a center drill, then peck drill with small depths.
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    Re: Buying first metal lathe

    I have a 7x HF mini lathe that I've upgraded with a lot of parts from LMS. I have the extended cross slide, 16" bed, QCTP, tailstock, etc. To do it over again, I would probably have gotten...
  5. Thread: Concrete VMC

    by burbingus
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    Re: Concrete VMC

    That is so rad
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    Re: Epoxy Granite How-To Video

    That was really informative. Thanks for all of your work putting it together!
  7. Re: Anyone considering the centroid Acorn instead of path pilot?

    No doubt, please keep us updated. I've been reading all of these posts as well.
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    Re: Linear encoder recommendation

    Hey Al,

    Thanks for all your help so far. My goal is to use a dual feedback with servos closed in their drives and then linear encoders communicating with the main controller. This will be with a...
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    Linear encoder recommendation

    Hi guys,

    I'm looking for recommendations for incremental linear encoders to add to each axis on my Pulsar mill. I'm hoping for something that will have at least 0.1 thou precision and good...
  10. Re: Anyone considering the centroid Acorn instead of path pilot?

    It will be interesting to see. I had considered the Acorn, but I want to mess around with additional functions and tools for my device and have decided on LinuxCNC instead. I'm planning on using a...
  11. Re: Face cutting 2 inch carbon steel bar stock

    I read an interesting topic on another forum about the feeds and speeds for 1018 steel which is very similar. They seemed to suggest running it dry with an air blast was the best bet. I think Jim's...
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    Re: Hydraulic PDB?

    I haven't seen those before, they look pretty neat! I would be really careful doing this though. Most of the pneumatic actuators I've seen are only rated to 150 or 200 PSI.
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    Re: NM-145 - Mach 3 Random Freeze - Help

    Hi Eric,

    I can't help a lot here, but it sounds to me like you have a controller card issue, not necessarily a Mach 3 issue. I would guess that the controller card has something failing and it's...
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    Re: How to mill-cut PVC with a cnc?

    Hi Chris - I haven't milled PVC but have worked with other plastics and have melted them before. In general, I think you will want a 2 flute end mill versus 4. Also, you want to lower the spindle...
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    Re: Torque needed for Pulsar servos

    That's the continuous torque for those servos.

    Is a brake a good idea on these?
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    Re: Torque needed for Pulsar servos

    It looks like the Torus Pro uses 1.2 kW servos in the same family as the Pulsar. They both make 4 Nm of torque, but the Torus version is faster, running at 3000 RPM where the Pulsar rated speed is...
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    Re: Torque needed for Pulsar servos

    Thanks mactec, that helps me get my bearings on this a bit.
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    Re: Torque needed for Pulsar servos

    Yeah I was hoping to find something with the same or more torque as the optional servos provide, but the motor frame size has been an issue.
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    Torque needed for Pulsar servos

    Hi guys,

    I'm still planning out some upgrades to my Pulsar. The servo option for the Pulsar has 1 kw XYZ axis motors that provide 4 Nm of torque (continuous). How much torque do you think these...
  20. Awesome. Thanks for your help figuring this out!

    Awesome. Thanks for your help figuring this out!
  21. Re: Current MESA hardware recommendation for AC servos

    Thanks! This will be for LinuxCNC. Is their a performance difference between the serial and parallel daughterboards? For instance, will the 7I94 loaded with 7I83s operate differently than say a...
  22. Re: Current MESA hardware recommendation for AC servos

    It's a Novakon Pulsar, but I'm getting servos on it. I haven't decided which servos/drives to use. It'll be 4 axis, but I'm hoping for some room for expansions in the future.

    Are there general...
  23. Current MESA hardware recommendation for AC servos

    Hi guys,

    I have a pretty quick question. MESA has a large number of offerings - what are the best hardware options for running AC servos with LinuxCNC? Also, is there a performance difference...
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    Re: Closing the loop and controllers

    Thanks for the additional advice and replies. There's a lot to think about. It seems that maybe some of the advantages in choosing between closing the loop in the controller versus the driver may...
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    Re: Closing the loop and controllers

    Hey Mac, why wouldn't there be a noticeable difference in closing in the driver versus the controller?
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