Welcome to Our Community

Some features disabled for guests. Register Today.

OpenBuilds OX CNC Machine

Discussion in 'CNC Mills/Routers' started by Mark Carew, Dec 15, 2013.

  1. Gaou²

    Gaou² New
    Builder

    Joined:
    Nov 17, 2014
    Messages:
    20
    Likes Received:
    2
    i am not sure what plates are you talking about . if you mean the plates that holds the stepper and the z axis i think they are in this thread . if you are using sketchup the openbuild has it own repository there.
     
  2. gibson

    gibson Well-Known
    Builder

    Joined:
    Jul 5, 2015
    Messages:
    150
    Likes Received:
    22
    yes those plates i use fusion 360 my computor wont load sketchup
     
  3. Rick 2.0

    Rick 2.0 OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Dec 20, 2013
    Messages:
    2,388
    Likes Received:
    1,197
    DXF plates are under the files tab. They're based on a 60mm X-axis but shouldn't be too difficult to modify.
     
    Mark Carew likes this.
  4. gibson

    gibson Well-Known
    Builder

    Joined:
    Jul 5, 2015
    Messages:
    150
    Likes Received:
    22
    thank u rick 2.0 u thee man
     
  5. tazma

    tazma New
    Builder

    Joined:
    May 17, 2018
    Messages:
    20
    Likes Received:
    2
    hola necesito ayuda y armo el cnc OX
    pero no puedo configurar el nema 23 y hacer mil pruebas y solo escuchas un ligero sonido del motor probado varias configuraciones y nada, y ya no sabes qué más hacer
    Modelo motor nema 23HS5328 - FASE 2 - ÁNGULO DE PASO 1.8 -
    TAMAÑO DEL MARCO DEL MOTOR 57-56MM -

    Precisión del ángulo del escalón: + -5% (escalón completo, sin carga)

    Precisión de resistencia: + -10%.

    Precisión de inductancia: + -20%

    Altura de la temperatura: 80 grados máximo (corriente nominal, 2 fases)

    Temperatura ambiente ----------- 20deg ~ + 50deg

    Resistencia de aislamiento: 100mΩ min, 500vdc

    Resistencia a la resistencia -------- 500vac por un minuto

    Diámetro del eje de 6.35mm o 8mm

    Driver TB6560



    $ 0 = 3 (pulso de paso, usec)
    $ 1 = 255 (retraso de ralentí de paso, mseg)
    $ 2 = 0 (máscara de inversión de puerto de paso: 00000000)
    $ 3 = 6 (máscara de inversión de puerto dir: 00000110)
    $ 4 = 1 (inversión de habilitación de pasos, bool) (placa V1, V2, V3 mate = $ 4 = 0 - placa brillante V3 = $ 4 = 1)
    $ 5 = 0 (límite de pines invertido, bool)
    $ 6 = 0 (pin invertido de sonda, bool)
    $ 10 = 3 (máscara de informe de estado: 00000011)
    $ 11 = 0.020 (desviación de unión, mm)
    $ 12 = 0.002 (tolerancia de arco, mm)
    $ 13 = 0 (pulgadas de informe, bool)
    $ 20 = 0 (límites suaves, bool)
    $ 21 = 0 (límites duros, bool)
    $ 22 = 1 (ciclo de inicio, bool)
    $ 23 = 3 (máscara dir. De inversión de inicio: 00000011)
    $ 24 = 50.000 (avance de referencia, mm / min)
    $ 25 = 1200.000 (búsqueda de orientación, mm / min)
    $ 26 = 25 (debounce de referencia, ms)
    $ 27 = 5.000 (extracción de referencia, mm)
    $ 100 = 26.670 (x, paso / mm)
    $ 101 = 26.670 (y, paso / mm)
    $ 102 = 199.900 (z, paso / mm)
    $ 110 = 7500.000 (x tasa máxima, mm / min)
    $ 111 = 7500.000 (y tasa máxima, mm / min)
    $ 112 = 1500.000 (tasa máxima de z, mm / min)
    $ 120 = 150.000 (x aceleración, mm / seg ^ 2)
    $ 121 = 150.000 (y aceleración, mm / seg ^ 2)
    $ 122 = 150.000 (z aceleración, mm / seg ^ 2)
    $ 130 = 510.000 (x recorrido máximo, mm)
    $ 131 = 770.000 (y recorrido máximo, mm)
    $ 132 = 170.000 (recorrido máximo de z, mm)

    [ADJUNTO = lleno] 35314 [/ ADJUNTO]
     

    Attached Files:

  6. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Project Maker Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    4,277
    Likes Received:
    1,552
    Get a better driver than the TB6560. They blow up for like no reason :) - so i'll bet your has already died and thats why despite doing everthing correctly, it doesnt move.

    I see a little melting/charring on the terminals on that board too



     
    Mark Carew likes this.
  7. tazma

    tazma New
    Builder

    Joined:
    May 17, 2018
    Messages:
    20
    Likes Received:
    2
    [QUOTE = "Peter Van Der Walt, post: 72496, miembro: 69967"] Obtenga un controlador mejor que el TB6560. Explotan sin ninguna razón :) , así que apuesto a que ya ha muerto y por eso, a pesar de hacer todo correctamente, no se mueve.

    También veo un poco de fusión / carbonización en los terminales de ese tablero [/ QUOTE]
    hola no es carbonización en el terminal es del marcador
    La verdad, no sé qué puede ser el motor, a veces se oye girar hacia adentro, pero el eje no gira.
    Pensé que podría ser un problema de mala configuración.
    este es mi motor
    y si estás en la configuración TB6560 TB6560-1.png


    Nema23 - 23hs5628 Stepper Motor - Hybrid two-phase - 8mm shaft
     
  8. JustinTime

    JustinTime Journeyman
    Builder

    Joined:
    Dec 18, 2013
    Messages:
    242
    Likes Received:
    60
    Solamente tienes un controladpr del motor? Si tienes dos, ambos no se sirven?

    Si busca en google TB6560 veras que Pedro dices sobre del esto controlador. La proxima generacion es TB66xx (no me recuerdo exactamente el numero) y son mejor con menos problemas.
     
  9. tazma

    tazma New
    Builder

    Joined:
    May 17, 2018
    Messages:
    20
    Likes Received:
    2
    I have a driver for each engine
    but I want to move the engine now I do not know if I explain
    Once the calibrated controller is in, I will move on to another phase
    the problem now is that there is no way to spin the engine I do not give with the driver configuration more grbl
     
  10. student123

    Builder

    Joined:
    Oct 22, 2018
    Messages:
    6
    Likes Received:
    0
    hi, i'm going to make cnc machine but don't know how to chose the correct leadscrew diameter ?
    does any one know how to teoritical calculation ?
     
  11. Ben Hartland

    Builder

    Joined:
    Apr 17, 2018
    Messages:
    9
    Likes Received:
    0
    Is there any particular reason why there isn't a gantry plate design that is r shaped to maximise cutting space?
    Crude mockup attached.

    Plate.png
     
  12. DarkPenguin

    DarkPenguin Well-Known
    Builder

    Joined:
    Sep 16, 2017
    Messages:
    110
    Likes Received:
    28
    The wobbles, I should think.
     
  13. Rick 2.0

    Rick 2.0 OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Dec 20, 2013
    Messages:
    2,388
    Likes Received:
    1,197
    Because it doesn't actually add any cutting area, it merely shifts if farther back.
     
  14. Rob Mitchell

    Rob Mitchell Well-Known
    Builder

    Joined:
    Nov 29, 2015
    Messages:
    109
    Likes Received:
    35
    In your opinion what path would you recommend I go to next to update my 1000mm x 1000mm OX that I built using the instructions in this thread to a more robust 1000x1000 beast mode machine? I'm thinking that I should follow the Openbuilds Leads project. I'm curious to know what will be throw away from my original build once I am on the upgrade path.
     
  15. DarkPenguin

    DarkPenguin Well-Known
    Builder

    Joined:
    Sep 16, 2017
    Messages:
    110
    Likes Received:
    28
    How is it failing you now? What would you like to do with it that you can't?
     
  16. Rob Mitchell

    Rob Mitchell Well-Known
    Builder

    Joined:
    Nov 29, 2015
    Messages:
    109
    Likes Received:
    35
    Too much flex around the gantry when cutting harder woods or doing light aluminum cuts.


     
  17. Rick 2.0

    Rick 2.0 OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Dec 20, 2013
    Messages:
    2,388
    Likes Received:
    1,197
    You'll probably find it better to sell it whole and use the proceeds to upgrade.
     
  18. Faxe-IT

    Faxe-IT New
    Builder

    Joined:
    Jun 24, 2017
    Messages:
    10
    Likes Received:
    2
    Hello everybody!
    I'm from italy and i've got an OX since a year.
    I've had several problems that I've managed to solve, mostly related to the belt clamping system (placing a screw on the belt have damaged them and made them break).
    Now I've got a brand new problem:
    I've found that using a 1mm diameter mill, I've got a backlash of approx 0,5mm and it's really big and it creates a bad working error in my objects that needed small carvings.
    I've readed a lot of posts in internet and found that my problem is related to the X axis eccentrics.
    In fact, mine are at the loosest position (the wheels are at the maximum distance between them) but even if they're in that position, the gantry has not a smooth movement if I try to pull it by hand, if I just try to tighten the eccentrics a little bit, it does not move at all.
    I've found in some older discussions that it's caused by the holes at a wrong distance so someone have enlarged them just by drilling.

    And now there's the point:
    I've readed someone suggesting to drill the non-eccentric holes on the plate and some other suggesting to drill the eccentric ones.
    Could someone tell me what holes are to enlarge and what diameter should I use for the drill bit?
     
  19. Rick 2.0

    Rick 2.0 OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Dec 20, 2013
    Messages:
    2,388
    Likes Received:
    1,197
    Enlarge the non-eccentrics.
     
  20. Faxe-IT

    Faxe-IT New
    Builder

    Joined:
    Jun 24, 2017
    Messages:
    10
    Likes Received:
    2
    Thanks rick. What diameter will be good?
     
  21. Rick 2.0

    Rick 2.0 OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Dec 20, 2013
    Messages:
    2,388
    Likes Received:
    1,197
    Hard to say without knowing how much is needed. Start with the next drill size up and go from there with the intent of trying to keep the enlarged hole as small as possible.
     
  22. Faxe-IT

    Faxe-IT New
    Builder

    Joined:
    Jun 24, 2017
    Messages:
    10
    Likes Received:
    2
    Following some other older discussions, I've managed to drill the non eccentric holes at 7mm diameter. It seems to be spool much better, I've got now the possibility to loose or tighten the wheels. Next step is re assembly the spindle mount and spindle in position and make some movements to measure if it moves correctly
     
  23. Hector Beltran

    Builder

    Joined:
    Oct 14, 2017
    Messages:
    49
    Likes Received:
    22
    Hi guys,

    I am in the process of surfacing my spoil board. I have encountered the following problem: one of the X stepper motor screws got completely loose, and the anti-backlash screw and nut came completely out twice. I am using this bit https://www.amazon.com/gp/aw/d/B01N9I773D?psc=1&ref=yo_pop_mb_pd_title with this inexpensive router https://www.amazon.com/gp/aw/d/B07CQK4ZL4?psc=1&ref=yo_pop_mb_pd_title which is super loud but works. Do you guys think adding thread lock is a must for those screws that are threaded to the plates or anywhere nylon washers are not used?
    I am thinking that either or both router and bit are not completely true causing excessive vibrations. Is the dewalt router less noisy and does it run true? Has someone tried a water cooled spindle on the workbee? I would like to reduce the noise and cut down on the vibrations so my workbee doesn’t fall apart.
     
  24. Giarc

    Giarc Master
    Moderator Builder

    Joined:
    Jan 24, 2015
    Messages:
    1,649
    Likes Received:
    859
    [QUOTE = "Hector Beltran, post: 73732, member: 90653"] Hi guys,

    I am in the process of surfacing my spoil board. I have encountered the following problem: one of the X stepper motor screws got completely loose, and the anti-backlash screw and nut came completely out twice. I am using this bit https://www.amazon.com/gp/aw/d/B01N9I773D?psc=1&ref=yo_pop_mb_pd_title with this inexpensive router https://www.amazon.com/gp/aw/d/B07CQK4ZL4? psc = 1 & ref = yo_pop_mb_pd_title which is super loud but works. Do you guys think adding thread lock is a must for those screws that are threaded to the plates or anywhere nylon washers are not used?
    I am thinking that either or both router and bit are not completely true causing excessive vibrations. Is the dewalt router less noisy and does it run true? Has someone tried a water cooled spindle on the workbee? I would like to reduce the noise and cut down on the vibrations so my workbee does not fall apart. [/ QUOTE]


    I would (and did) use thread lock everywhere that nylock nuts are not used.
    Also, when you say "not true" is the router not cutting the surface board properly, or is it something else? I used Makita router that is very similar to the one you bought - it seems there are a lot of Makita clones - I do not get a lot of vibration, but my CNC is attached in many locations (probably over a dozen) to a very heavy torsion box table top I built.
    How fast and deep were you surfacing your spoil board?
     
  25. Hector Beltran

    Builder

    Joined:
    Oct 14, 2017
    Messages:
    49
    Likes Received:
    22
    Thanks for your comments. I will apply blue thread lock then-it makes sense; I think it should be noted in the video/instructions as having screws and nuts falling off could be dangerous.
    My workbee is not bolted down; it rests flat on heavy duty steel saw horses TOUGHBUILT Adjustable Height (25-32 in.) and Width (39.9-45.9 in.) Steel Sawhorse and Jobsite Table – 1300 lb. Capacity-TB-C700 - The Home Depot I haven’t noticed any movement. I would build a torsion box, but I don’t have a lot of room in my garage. In fact, my cnc hangs of a wall when not in use.
    I will check my cheapo router again to determine if it in fact is causing the vibration. By looking at it, I don’t see anything wrong with it, but the shaft spins so fast it’s hard to tell. The instructions state that the dial set to 3 should be around 20,000RPMs which is what am using. I am taking 0.5mm (Home Depot 3/4 MDF) per pass with 40% step over at 333 mm/min. Bit is 1” diameter with a 1/4” shank.
     
  26. Ben Hartland

    Builder

    Joined:
    Apr 17, 2018
    Messages:
    9
    Likes Received:
    0
    I've just upgraded my OX CNC with the double belt mod. Switching the machine back on, I can move Z and X axis (X axis is a little rough sounding but this could be due to the double belt install) but Y axis just seems to stall. I've removed tension, but it doesn't seem to want to budge.
    When I turn the machine power on, all axis lock (as in, I can't move them by hand, vs when it is turned off I can move all of them by hand)
    In Universal G-code Sender, I receive an OK for every command, until I try and move either direction on the Y axis, at which point it stops responding to any command until I close and reopen the connection.
    I have checked $$, and the settings appear to be correct.
    Micro steps are configured to 8 still.
    One thing I did do was I routed the USB cable through the Y drag chain, which I hadn't previously done. I have since undone this thinking maybe there was an issue with the signal on the USB cable.

    I have tried replacement motors (no belt), having tested they work on X axis. They lock, but also do not turn on Y axis either, so I know my motors are fine.

    This leads me to the xPro CNC itself as the cause.
    Potentiometers are all central.
    Lights on the xPro CNC when first powered on.
    X - Orange
    Y - Orange
    Z - Orange
    A - Orange

    After moving Z axis
    X - Orange
    Y - Orange
    Z - Red (-) / Green (+) / Yellow (-)
    A - Orange

    After moving the X axis
    X - Green (-) / Yellow (+)
    Y - Orange
    Z - Orange
    A - Orange

    After moving the Y axis - / +
    X - Orange
    Y - Orange
    Z - Orange
    A - Orange

    Nothing responds at this point until I close and reopen the connection.

    $$
    $0=10
    $1=255
    $2=0
    $3=6
    $4=1
    $5=0
    $6=0
    $10=1
    $11=0.020
    $12=0.002
    $13=0
    $20=0
    $21=0
    $22=0
    $23=1
    $24=25.000
    $25=500.000
    $26=250
    $27=1.000
    $30=1000
    $31=0
    $32=0
    $100=8.000
    $101=26.667
    $102=200.000
    $110=2500.000
    $111=2500.000
    $112=2500.000
    $120=50.000
    $121=0.000
    $122=36.631
    $130=550.000
    $131=750.000
    $132=68.000

    Any ideas?
     
  27. Gary Caruso

    Gary Caruso OpenBuilds Team
    Staff Member Moderator Builder

    Joined:
    May 19, 2016
    Messages:
    881
    Likes Received:
    382
    Hi Ben, some of your settings are incorrect.
    $100 is set to 8, with the 20 tooth gt3 pulley this should be like $101 is set 26.667.
    $102 = 200 should be correct for TR8*8 screw.

    The biggest reason Y wont move is the acceleration is set to zero for Y.
    $120, 121, 122 should all be about the same (at least 120-121) and at 0 it will never move.
    I would set the acceleration to about 500 to start. so $120=500, $121=500, $122-500

    cheers
    Gary
     
    GrayUK likes this.
  28. Ben Hartland

    Builder

    Joined:
    Apr 17, 2018
    Messages:
    9
    Likes Received:
    0
    Gary, you are a life saver.. It's working now. How did these settings reset like that?
     
  29. Ben Hartland

    Builder

    Joined:
    Apr 17, 2018
    Messages:
    9
    Likes Received:
    0
    I seem to be getting a lot of inconsistent movement now and it's affecting my cuts. I've tried increasing current to the motors up to the last indentation on the current pots, but I get this screeching / buzzing noise when I turn the power on.

    EDIT: I reduced the wheel tension and it seemed to fix the cut problem, I've dropped current back to what it was originally, but now it seems I have yet another problem.. Part way through the cut the xPro stops responding.
    I'm also having this low pitch buzzing noise sometimes from the xPro when I turn the power on, and the xPro vibrates. I first thought it was the fan, but after disconnecting the fan, the buzzing / vibrating still continues.

    EDIT EDIT: Vacuum hose crossed over the USB, so I think static... moving the hose, no drop out, but the buzzing is still worrying.
     
    #3539 Ben Hartland, Dec 2, 2018
    Last edited: Dec 2, 2018
  30. Ben Hartland

    Builder

    Joined:
    Apr 17, 2018
    Messages:
    9
    Likes Received:
    0
    No, I'm still having cut quality issues...
    Here are some simple push sticks I'm trying to cut out on MDF. Previously these would cut out fine. 6mm endmill, 60 mm/s, 27K rpm, 4.1mm stepdown.

    The handle is a little misshapen (and I removed the handle hole and added it back for the photo)
    The problem is with the Y axis again.
    Any ideas?
     

    Attached Files:

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice