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Trying to adjust a 1050 Sphinx

Discussion in 'CNC Mills/Routers' started by Steveathome, May 24, 2019.

  1. Steveathome

    Steveathome Well-Known
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    I was happily going along cutting stuff on my Sphinx 1050 not knowing how out of square it was.

    Then I tried out the surfacing gadget (nice software Peter) with a 1 inch mortising bit.

    I can now go into the roofing business. This thing shingles like crazy.

    The "NOD" I believe it is called is out about a 1/16 of an inch. Its leaning forward.

    It didnt show up until now, the drilling was ok (i thought) I was drilling 1/8 holes .5 deep for cribbage boards, You wont see anything wrong there.

    Also 3d carving again nothing real shows up.

    Anyone know how I can adjust this?
     
    Peter Van Der Walt likes this.
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Pictures, screenshots and logs are helpful for troubleshooting software issues. Without it, its like working blind and the answers tend to be guesswork
     
  3. Alex Chambers

    Alex Chambers Openbuilds Team
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    You probably already know most of this @Steveathome, but for the sake of completeness I'll mention everything I can think of.
    First try to find out what is out of square.
    Is the X axis rail true? You do now have a spoiler board that is level on average - rest your try square on the ridges and check the front face.
    Is the X carriage sitting properly on the X rail? Wheels adjusted properly?
    Do the same checks on the Z axis - is anything loose?
    If you can't find anything that can be tightened or adjusted then the only option I can think of is to correct the lean by putting shims in. I don't know the Sphinx so I can't say exactly where, but I know someone who does - so if I tag @Mark Carew you may get some better advice.
    Alex.
    PS it is possible to bend aluminium extrusions - have you ever crashed your router bit into something? If your X axis rail is not truly vertical is it the same all the way across?
     
    #3 Alex Chambers, May 25, 2019
    Last edited: May 25, 2019
  4. Steveathome

    Steveathome Well-Known
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    Peter, I know its not a software problem that why no pictures or files.

    Its how I assembled it. I dont have the Z perpindicular in all directions.

    Its always had this problem, I just didnt look close enough to see it.

    I need some way of adjusting the Z at the top of its movement forward or back.

    Cant get my head around, how or with what to shim.
     
    Peter Van Der Walt likes this.
  5. Alex Chambers

    Alex Chambers Openbuilds Team
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    I have just had a look at the build video - the only place I can see to put shims is between the X axis plate and the Z axis C beam - as this involves a lot of dismantling make sure there is no other cause first. I had hoped someone with more experience of the sphinx would chip in as 1/16" seems a lot more error than I would expect from Openbuilds parts.
    Good luck,
    Alex.
     
  6. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Pics could still help. Of your scallops, closeups of wheel assemblies between Z and X for example :) we can check that all is as it should be
     
  7. Rick 2.0

    Rick 2.0 OpenBuilds Team
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    Add the shims at the top or bottom between the z-axis C-beam and the X-gantry plate. Loosen the screws and slide. Re-tighten. The bigger question here is how deep of a pass did you do with the resurfacing and did you follow with a shallow finishing pass?
     
  8. Steveathome

    Steveathome Well-Known
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    OK took some pics, be aware these are fabricated pics. that is after the fact.

    first is the shingling. These were done now just by plunging and going direction x about 150 mm
    getting about 0.0" to 0.017" on the shingle with in this case with a 10 mm overlap taking a 1 mm deep cut
    the material was mahogany

    next shows same board further along where I did a keyhole tryout in two directions and a try of both directions, cant see anything wrong.

    this shows the bit used 1 inch diam

    side view of Z

    front view of Z don't have the vac attached

    picture of the my last piece completed, It does not show what is really going on. ie: the tilt of Z (cause everything is tilted and is small ((relative))

    Now --- Correct me if I'm wrong. (please)

    If we setup the Z perpendicular in a full circle we don't shouldn't need to worry about the spoiler board surface (within reason) we can simply bolt material in place, fly cut the surface with surfacing wizard and then proceed to cut our project.

    Thanks for all the suggestions, I am trying them out.
     

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  9. Giarc

    Giarc Master
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    This may be a dumb question, but is there a chance you forgot to put the 1mm spacers on the bottom wheel bolts of either the x gantry cart or the z plate? My other thought would be taking a shallower surfacing cut.
     
    Alex Chambers likes this.
  10. Alex Chambers

    Alex Chambers Openbuilds Team
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    There is some evidence of the edge of the tool in both axes. 1mm doc is a bit much for a bit that size - lots of lateral force although there certainly appears to be a problem with the Z axis alignment. Have you checked with a try square on the X axis rail and the Z axis C beam @Steveathome?
    As for not surfacing your spoiler board - if your Z axis is perpendicular you can get a flat surface on your workpiece, but if your spoiler board is out your workpiece won't be an even thickness. Whether this matters or not will depend on the job and how far the spoiler board is out.
    Alex.
     
  11. Steveathome

    Steveathome Well-Known
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    Nope no left over parts, also when I tried the second time manually you could see it cutting on one side before the full circle. But maybe thats where I could shim it out with an additional shim. Thanks
     

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