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Type: Posts; User: jaysihn

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  1. Replies
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    Re: Lagun 250 Variable Speed drive

    anyone have recommendations for good/affordable bearings?
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    Re: Lagun 250 Variable Speed drive

    for anyone searching this thread in the future... You just drive the shaft from the bearing. the bearing then comes out after you remove a snap ring from the brake side.
    i don't believe there is...
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    Re: Lagun 250 Variable Speed drive

    i gave it a pry against the housing with no luck.
    looking at this x-section from the manual, it looks like there is a snap ring (58) that holds the bearing into the housing. i guess the shaft must...
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    Re: A Simple Cut Turned into Problem

    why do you say it is told to go to Z.125? the code never says that. if you wanted to get running now and keep the actual depth of cut to .125, i would find a .125" shim to use when setting your...
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    Re: Lagun 250 Variable Speed drive

    well i got most of the top end apart. I'm stuck at how to remove the bottom fixed side of the spindle variable pulley. the top side just slides onto the shaft. I expect this to come off with a...
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    Re: A Simple Cut Turned into Problem

    looking at your text file, I'd say that my previous post was right. your first Z on N21 is .25. the next Z move goes to .375.
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    Re: A Simple Cut Turned into Problem

    is there a setting for material origin that is .125 inside of your stock? is each pass more than .125 or is it actually just the first layer that is starting .25" deep?
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    Lagun 250 Variable Speed drive

    Hi Guys, I dont know if this is the best place for this post. I didn't see a Lagun specific forum.

    I have an old Lagunmatic 250 that i'm working on getting into operating condition. I was...
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    dynapath 10 - MDI?

    i've been learning my dynapath 10 controller and i've got the hang of jogging, setting zeros, setting tool lengths, sending gcode, running gcode. One thing i've not found is how to manually send a...
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    Re: how to use vfd for old cnc mill

    Ya those are ac output. They have 20 something vdc on one side and 120v ac on the other side. I wired it up with the contactors as the switches to pull the fwd and rev pins to the gnd/common of the...
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    Re: how to use vfd for old cnc mill

    ok, no worries, so i just need to run a wire from fwd&rev down to the contactor or relay and then on the other side of that relay take a wire back to the GND (common) pin of the VFD.
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    Re: how to use vfd for old cnc mill

    445460

    i just looked in the vfd manual again, i think the reason i couldn't find a specific voltage for the fwd rev pins is because they are internally pulled high and all i need to do is ground...
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    Re: how to use vfd for old cnc mill

    so put 10V output from the VFD to one side of the contactor and then the other side of a contactor back to teh fwd or rev pin of the vfd? I wasn't as comfortable with that just because there are...
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    You are saying to connect the power input for the...

    You are saying to connect the power input for the vfd to the existing contactors? How would I be able to change directions? This would add a long delay between the m03 command and the spindle...
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    Re: how to use vfd for old cnc mill

    Thanks Jim, I think you are right about the 10V digital instead of 0-10 analog. Its odd, but i can't find anywhere in the manual that actually specifies the logic level for those pins. the manual...
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    Re: how to use vfd for old cnc mill

    ya, it accepts the S command that comes in with my code. I just dont think it does anything with it.

    445450445452
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    Re: how to use vfd for old cnc mill

    so i did some digging to find the wires that correspond to spindle fwd and spindle rev coming from the cnc controller. i found pins 61 and 64 which seem to be 24V logic pins. they go into some...
  18. Re: post processor for dynapath delta10 - fusion 360

    yes, I expect that may happen but they've been offering it free for hobby use for years now. I know i first installed it about 3.5 years ago. If I can figure out a small cash flow from this machine...
  19. Re: post processor for dynapath delta10 - fusion 360

    i modified the post to correct the formatting of the program name and start at N001. Also disabled the tool changer option. i did a couple of test programs successfully!
  20. post processor for dynapath delta10 - fusion 360

    any anyone tell me if the included dynapath post in fusion360 works with the delta10 controller?

    here is some sample gcode it generated. i think the program name needs to be added at the...
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    Re: RS232 Communication Problem

    that worked! Thanks.
  22. Replies
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    Re: how to use vfd for old cnc mill

    do you happen to have a link to where you were looking at the specs for this motor? Or where you see that it says insulated bearings?
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    Re: RS232 Communication Problem

    i'm currently working through the same thing. i've got my cable which is a crossover and is the same cable the previous owner used. I've got RealTerm installed.
    i'm trying to do R5 -4800 baud. ...
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    Re: how to use vfd for old cnc mill

    i'm trying to get comms going between my pc and the control. should i move the question to a different forum or keep going within this thread?
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    Re: how to use vfd for old cnc mill

    445184

    my serial number is pretty close to the 60,000 when they started delta10 with 6MHz hardware. makes me think its probably from 1986-1988.
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    Re: how to use vfd for old cnc mill

    445172445174445176
    battery is there. I had this machine sitting without power since October 2019 and when I got it powered back up it didn't have any battery warnings.
    maybe this is an even older...
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    Re: how to use vfd for old cnc mill

    pretty sure its closer to 30 years old.
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    Re: how to use vfd for old cnc mill

    thanks Jim. I'll keep the max freq at 100 Hz until i've got some time on the machine and get more comfortable with its limits.
    did yours have the weird brake on the motor? I took that off tonight...
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    Re: how to use vfd for old cnc mill

    so the motor is safe to double speed but what about the spindle bearings? i think the max speed on the hand crank is 3000. if i wanted to leave it in that position and over-drive the motor, do you...
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    Re: how to use vfd for old cnc mill

    changed the settings as instructed and its working now. forward and reverse work. i changed the initial startup frequency to 60 so the motor runs at the designed speed. I left the max at 100 hz...
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