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Type: Posts; User: RHT

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  1. Major Flank Angle for 12tpi triple start square thread tool bit

    Title says it all. Hobbyist here looking for the correct grind for Major Flank Angle for 12 tpi triple start square thread tool bit. Also, is tip width of .043 reasonable? Thread in Nickel Silver....
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    Re: pokeys57cnc and mc60 motor controller

    Daz and Dean, thanks.

    Re-tested all the wiring for continuity and voltage again. One of the solder points had disconnected under the shrink wrap. Up and running again. Just need to final mount a...
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    pokeys57cnc and mc60 motor controller

    Has anyone used the above combination? I had a pmdx411, gecko g540 and mc60 working on my lathe. Needed more outputs and switched to Pokey57CNC. The g540 had 3 wires to the mc60, the +10v, common...
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    Re: spindle encoder for lathe

    Yes it would. But, as I said, it depends on which software and motion controller you choose. Not all hardware and/or software combinations can utilize the information.
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    Proper Lathe Technique

    Need to ask you experienced machinist which method produces the best results or does it matter.

    When writing gcode to turn stock to a specified depth which, for example, will take 3 passes at a...
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    Re: spindle encoder for lathe

    It all depends on which software and motion control vendor you are going to use. Some software (Mach3) only uses/reads one signal per revolution so all you need is a disk with one slot while others...
  7. Thread: I/O board help

    by RHT
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    Re: I/O board help

    I can code in cobol, fortran, C, C++ and Oject Pascal, but I can't read Sanskrit, Hieroglyphics or Schematics! Grin

    Finally risked creating some blue smoke and connected the FP48 PW IN +V to the...
  8. Thread: I/O board help

    by RHT
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    Re: I/O board help

    John, many thanks for taking time to take a look at this.

    The U3 part number is TLP280-4

    The other terminals you asked about are marked as PW IN( I assume power in) with +V and 0V above those...
  9. Thread: I/O board help

    by RHT
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    I/O board help

    I am electronically challenged so please be kind.

    I bought a CNC control box several years ago for my DIY gantry style mill. It has a smooth stepper, soundLogic combo board and a FP-48 I/O board...
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    Re: G540 probe wiring fault

    Well, a new day and now all of a sudden the G540 does not fault and the probe works as expected. Didn't change anything, weird.
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    G540 probe wiring fault

    Using Mach3 lathe, Gecko g540 and UC100

    First off let me say that I am electronically challenged.

    I am trying to add a probe to my lathe. Two things may be unrelated but more info is better...
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    Re: Gecko g540 spindle problem

    You don't say what software you are using. If Mach3 then 'possibly' you have your 'current pulley' defined with a minimum speed less than what you specified in you 'M3' command.

    M3

    no speed...
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    Re: 7x14 cnc conversion

    FYI, I did a rear mounted stepper on the cross slide and the weight hanging off the back tends to raise the saddle off the front guide way. You need to counterbalance that weight.

    HTH
  14. Thread: Surfacing Anomoly

    by RHT
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    Surfacing Anomoly

    I am at a loss to explain what could cause this. I noticed that I was getting lines at each successive depth on one side of the pieces being cut. I thought my spoil board may have warped so I started...
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    Limit switch wire gauge

    Electronically challenged here so forgive me.

    Using a Gecko G540 what is the recommended/minimum wire size for limit switches? Can you use ethernet cable wires or are they too small?

    TIA

    RT
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    7x lathe spindle/indexer question

    Just converted my 7x lathe to CNC on both X and Z axis with ball screws, timing belts, pulleys and NEMA 23 motors, Mach3 and Win7. Works great.

    I haven't yet set up spindle control and was...
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    I know that it is hard to fathom but when you are...

    I know that it is hard to fathom but when you are mak:stickpokeing split cane bamboo rods the tip dimension for one of the splines can be as small as 0.025 and we tolerances to 0.001. 6 thou is a...
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    Bamboo p

    Bamboo p
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    Thank you for the quick reply. However the...

    Thank you for the quick reply. However the material being measured is not stiff enough to withstand a micrometer's pressure when measuring the apex. I need a v shaped anvil so that the sides...
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    Measuring triangles

    I need to measure equalateral triangle material from 0.025 to 0.5". I know that a V anvil micrometer measures the diameter but I need the triangle height. Any suggestions as to where I can get a...
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    As always I failed to communicate! I was asking...

    As always I failed to communicate! I was asking more about the fact that this is 110volt instead of 220. What effect if any does this have on performance?
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    Last time I enclosed the URL with "" and it got...

    Last time I enclosed the URL with "<>" and it got taken out. Live and learn.

    Anyone have an opinion on this one?

    2.2KW 110V 3HP VFD AC Variable Frequency Speed Drive - eBay (item 350324043938...
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    VFD - 115Volt input

    I am electronically challenged so forgive me if this is a dumb question.

    I have been considering adding a spindle to my DIY hobby router gantry table. As I have followed the posts I thought that...
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