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Type: Posts; User: Docop

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  1. Replies
    10
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    1,917

    Re: Running 2 stepper motors off a single drive

    Well i asked this same question and all people just told: no, not got idea... Actually, the major qty of all 3dPrinter run 1 driver for 2 stepper and that work quite perfectly and it's an uber...
  2. Replies
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    1,808

    Re: Z axis too heavy stepper choice

    Hi Indeed it looks a good way. So if I pick a fish scale and took all the z axis all together : i will have 70 lbs. But if I put over the carriage, the preload and friction of those will eat some of...
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    Re: Two stepper motor on one Drive

    Hi
    I post moslty same question last week.. So on the controller output pin, it will be ok to feed 2 driver at same time without any hickup ?
    So we will be able to got 2 smaller motor to drive...
  4. Replies
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    1,808

    Z axis too heavy stepper choice

    Hi
    I build a custom z axis and used quite too much material and it's quite heavy. I'm just missing the stepper, but i really wonder about it.

    Driver run at 48v and 4.5amp set of max 5a.

    The...
  5. 2 stepper on 1 controller driver- power requirement

    Hi

    I know it's not standard, but will it be ok if : I used a 381oz 3.5a per phase stepper plug to a controller driver of 5.5a. Can I plug in parallel a smaller stepper like 280oz at 2amp ?...
  6. Replies
    4
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    362

    wasteboard fixation over baseboard

    Hi
    I would like to know how do you generally fix the waste board, over the baseboard of the cnc ?
    Like i plan to put a mdf sheet as a base board, then fixe T-Slot track on top. And then inbetween...
  7. Replies
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    6,285

    Re: How to make Carbon fiber sheet ?

    In fact, a vacuum level is very logarithmic.. So a 20 buck pump will give you about nothing.. same a using an air compressor..
    A full high level 2 stage will bring you at -29.7inHg. with a small...
  8. Thread: 5 axis toughts

    by Docop
    Replies
    9
    Views
    1,903

    Re: 5 axis toughts

    But, as from the previous picture design, a belt system could work, if it's just for wood. The load requirement will be quite much more lower.

    And is 1 idler wheel might be helpfull to keep the...
  9. Replies
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    6,285

    Re: How to make Carbon fiber sheet ?

    Just pass over this thread.. Actually, all carbon fiber hood or container or anythig acting as fairing : they have pinhole. A vacuum infusion will let you make a pristine and structural part. But...
  10. Replies
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    7,855

    Re: 5-axis (BC/AC) head construction

    Hi
    Indeed, the forum is quite helpfull for lots of subjects.. Actually, I was thinking was it better to have a higher resolution, as a 0.9 deg step for the stepper on the
    C axis ?

    About the...
  11. Thread: 5 axis toughts

    by Docop
    Replies
    9
    Views
    1,903

    Re: 5 axis toughts

    Hi
    Pretty great design, as myself too are planning on this.So far a 60:1 could work out, but I do have a small 1.5kw spindle.. But on your design, you are quite bigger. Will you need more than...
  12. Replies
    167
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    7,855

    Re: 5-axis (BC/AC) head construction

    Hi

    Pretty great so far ! As for the controller, had you look into the smoothstepper, it might be more easier to handle all the axis at same time and with less problem of connection to any pc too....
  13. Replies
    0
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    550

    4th axis made at the spindle useful ?

    Hi

    I had started my cnc projet and plan for my mount, but I have already purchased some part... that may be too small ?? not sure. But looking to put an roller bearing
    right at under the...
  14. Replies
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    747

    Info on foam cutting bit - Long one

    Hi

    I'm looking at the proper bit to cut foam, the Blue Dow foam for insulation house.
    I will do a stack or a big block of 4inch.

    I do have a 2.2kw spindle, so for a bit of about 3 to 4in...
  15. Re: Smaller linear rail better than open V wheel

    Hi

    Indeed I haven't specified, but yes, it's mostly for few used per month let say..
    I intend to cut mostly 1/4 mdf and soft foam of 4inch thick. Of course, the rail HGR15 could be best. MGN09...
  16. Smaller linear rail better than open V wheel

    Hi

    I was about to start my build over a 8020 extrusion and look too at the open V wheel, as the OX system cnc. And also on the DualVee system.
    So the question is : Is the precision and overall...
  17. Re: Power requirement for an extra axis adding a 4t one

    Hi

    Yeah, a linear is simple, but quite a bit heavier too. And on the energy efficacity, the switched power I see will be about 86% efficient. So I prefer those a bit.. On the
    price it's a bit...
  18. Power requirement for an extra axis adding a 4t one

    Hi

    I'm looking to confirm if the power supply I choose will be ok or be too narrow to survive a 4th axis build.

    I intend to build a rack and pignon with 2x 500oz Nema23 on Y and 1x on the X....
  19. Plugin needed if using external controller or ESS

    Hi

    I would like to recap what if my setup is ok or not:
    I plan on a 3axis cnc, I have a 2.2kw spindle with a Huang chinesse vfd. And I will use a Contour Shuttle jog as a pendant.

    I see...
  20. Re: Building a Solsylva V-Bearing CNC - My first Foray

    Very nice build !
    I wonder about the v-bearing with the eccentric you put at inside. So have you put them only on 1 side of the rail ?

    And by using the metal one, is the eccentric are really...
  21. Replies
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    300 vs 200khz driver for 570oz

    Hi

    So my cnc will be running on rack and pignon direct drive over the Y axis with 2 nema23 KL23H2100-50-4B 570oz 2 phase, rated volt 3v, current 5A, resistance/phase 0.6/ 2.5mH

    I plan on...
  22. Re: Z axis linear bearing rail size 9mm or larger ?

    Thanks for the tips. I've check further and I may had found the load with a speed under 90ipm could give about a 300lbs load around the spindle.
    So is the ballscreww sfu1204 could handle that...
  23. Z axis linear bearing rail size 9mm or larger ?

    Hi

    I'm about to build a cnc of 5ft by 5ft and I plan to use linear rail for the Z axis. The Z will be with a 2.2kW spindle , so let say about 9lbs with the bracket. I will cut alu from time to...
  24. Replies
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    Re: 5x5 cnc Igus Drylin rail vs OX wheel system

    Thank for the tips. I do think the plain linear bearing could be a better route. But as over my design, I plan to remove the gantry to position the cnc around the shop
    for storage. I guess removing...
  25. Replies
    3
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    525

    5x5 cnc Igus Drylin rail vs OX wheel system

    Hi

    So I'm planning to build my cnc 5x5ft with linear rail and 8020 extrusion. I was looking at the Igus Drylin W. As being a simple rail system, that could be quite usefull and easy to work.....
  26. Replies
    2
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    462

    Thrust -Torque precision reading

    Hi

    So i need to monitor the feed rate, the pressure and the thrust done by a drill bit for when drilling a composite part. I have got an high quality strain-gage for the pressure, but i'm stuck...
  27. Replies
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    So the motor is an ac one. Maybe i can put also a...

    So the motor is an ac one. Maybe i can put also a current meter to let know the raising amp, but i don't know if it will show up great data at the end or how i will be able to interpret it.. or as a...
  28. Replies
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    Thrust force metering and drill pressure

    Hi

    I would like to have the exact data during a drilling of composite material. So is anyone know a system that i can put beside the material and have a monitor to show me the : strain, the...
  29. Replies
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    Hi So thanks for the info, of course the option...

    Hi
    So thanks for the info, of course the option of the shaft tachometer pointing the top of a circular disc around the chuck could be a good idea.
    Also, is an opto could be better vs an sensing...
  30. Replies
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    587

    RPM reading over a press drill mod

    Hi

    I have a projet to convert a press drill but having the the part moved as a cnc. So it's mainly a fix speed tabletop drill and i need to have the RPM readout of the main shaft. So by not...
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