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Type: Posts; User: scubasteve_911

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  1. Replies
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    I'm designing a pcb for a 3-axis controller and...

    I'm designing a pcb for a 3-axis controller and interface to the parallel port so that it can be used with mach3. I will post schematics and gerber files when I am finished. I may have 3-4 spares...
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    Thank you! I will try this on Monday, very good...

    Thank you! I will try this on Monday, very good advice !
    I'm going to try to find out how to get into the parameter entry mode, I know that it is decoding the quadrature signals at two different...
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    485

    Old Heidenhain DRO Help!?

    Hello everyone,

    I have an old Heidenhain Pos-E-Touch II DRO that I want to use with some linear encoders. The problem with it is that the encoder dividers aren't set up correctly, so it is reading...
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    Very true about the nearly negligable costs...

    Very true about the nearly negligable costs involved, but I think hobby work really isn't about getting things done cheaper.. It's about getting satisfaction out of doing things, but there is...
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    Thanks Tom!, That does look very easy to do,...

    Thanks Tom!,

    That does look very easy to do, but I'd be concerned about available clamping force. I wonder if it would be rigid enough for most jobs?

    You gotta love the simplicity though! I'm...
  6. Replies
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    DIY QTC for HF 8X12" Lathe??

    Hello,

    Can anybody tell me if someone has created a QTC mechanism for their mini-lathe and documented it well? I don't really want to spend 100$ on something that I could machine for much less and...
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    I think I am going to go ahead and purchase it,...

    I think I am going to go ahead and purchase it, it's from a friend on mine that works in the industry. Apparently, it's NOS (new old stock) , I will post it on ebay and if nobody wants it for a...
  8. Replies
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    Ali Kat, A homebrew controller can be...

    Ali Kat,

    A homebrew controller can be designed, but it takes a bit of time and skill. I'm nearly an electrical engineer, so I can manage to stumble through and make it work. I have no idea about...
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    446

    hehe, yes, that's the reasoning for me saying...

    hehe, yes, that's the reasoning for me saying that most people won't pay this much for something like this :(

    I got a quote for a similar spindle, it was 24000$US. The controller, water-cooling...
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    What I meant was that the 220VAC single phase...

    What I meant was that the 220VAC single phase should be able to power the controller. The controller outputs the voltage for a three-phase motor at variable frequency and voltage. This is a VFD drive...
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    Yeah ,it has no controller, but I am getting the...

    Yeah ,it has no controller, but I am getting the specs tonight for the driver. One needs to know a bit about the motor, hopefully it is setup for a 220V AC single phase supply (to controller). It...
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    Maybe I'll just buy it and hope for the best :)...

    Maybe I'll just buy it and hope for the best :) Thanks for responding :)

    Steve

    p.s. - you make some spectacular dyes for your clothes on that site, never seen anything like that before!
  13. Replies
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    Yes! Great idea, that will minimize deflection...

    Yes! Great idea, that will minimize deflection that would certainly affect the quality of the sensor.

    I will post my final project on here when I'm finished next may, maybe someone might find...
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    368

    HuFlungDung, Thanks! So, I should turn the...

    HuFlungDung,

    Thanks! So, I should turn the inside piece of brass to it's proper OD and a rough ID. Mount it to the indexer, then slit the slots into the piece. The slits won't run all the way...
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    hmm, it's a manual collet. I didn't have a need...

    hmm, it's a manual collet. I didn't have a need for automatic tool change,

    My concern is that there are two main markets for CNC machines that I know of. The hobbiest / semi-professional and the...
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    I'm an idiot, I didn't even post my drawings !...

    I'm an idiot, I didn't even post my drawings ! SORRY!
  17. Replies
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    Has anyone tried to create an interface for...

    Has anyone tried to create an interface for linear encoders to a display? You can pick up relatively inexpensive linear encoders precise to 1uM off of ebay. I have done quadrature decoding on a...
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    How can I machine this part?

    Hello everyone,

    I need to machine this part for a school project this year, but I am a bit uncertain how to do it. The final part will be composed of three different materials: brass, delrin, and...
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    Should I buy this spindle??

    Hello everyone,

    I have a line on a brand new Colibris spindle, but I can't use it anymore for my CNC project. This is a top of the line spindle, apparently one of the world's finest spindle...
  20. Sticky: Yes Sir, I'm all ready to go with Solidworks. I'm...

    Yes Sir, I'm all ready to go with Solidworks. I'm eager to check out what you have done :)

    Steve
  21. Sticky: Hi, The circuitboard expense I was referring...

    Hi,

    The circuitboard expense I was referring to was the one I am designing to control the spindle. This includes the magnetic bearings, sensor-feedback loop, position loop, current control loop,...
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    Good stuff Episs, I can't really comment on...

    Good stuff Episs,

    I can't really comment on the code, since I don't really understand it yet. Fortunately, I get to be forced into learning VHDL this semester :)

    Steve
  23. Sticky: Tolik, I don't really have a problem with...

    Tolik,

    I don't really have a problem with cooling of inrunners, that's not very difficult. For the savings in comparison to a commercial precision spindle motor, you can afford watercool it...
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    Thanks for your input. I am aware of periodic...

    Thanks for your input. I am aware of periodic error and other factors that effect true linear precision. I just think it is a completely silly route to spend that much on a leadscrew. The only way...
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    Well, I thought it would be neat to find new...

    Well, I thought it would be neat to find new leadscrews that I knew the specs on, then machine down the ends to fit some shaft couplers.. until I called around to find prices on these leadscrews..
    ...
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