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Type: Posts; User: DLF

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  1. Thread: New lathe purchase

    by DLF
    Replies
    8
    Views
    3,516

    Re: New lathe purchase

    Finally managed to order mine.

    But, as a bonus I got the bigger model, the Paulimot PM5000.
    ...
  2. Replies
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    9,630

    Re: Need help - dovetail/gib oiling

    How’s the progress? Does it work?


    Sent from my iPhone using Tapatalk
  3. Replies
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    9,630

    Re: Need help - dovetail/gib oiling

    You have a tapered gob which acts as a seal. I would try it first without the channel and see if oil gets where it should. I am pretty sure it will


    Sent from my iPhone using Tapatalk
  4. Replies
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    9,630

    Re: Need help - dovetail/gib oiling

    At some point I bought some very low profile compression fittings for nylon tubing. Ordered them from china (off-course)

    Worked really well and had a small form-factor. Only downside was the...
  5. Replies
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    9,630

    Need help - dovetail/gib oiling

    Here you go...

    See the marked area

    https://uploads.tapatalk-cdn.com/20210509/4a911013b2def94c37307bba10bfd637.jpg

    But as stated before, with a tapered gib machine this is not needed. The...
  6. Replies
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    9,630

    Re: Need help - dovetail/gib oiling

    You can check my Optimum MH25V thread. I posted there pictures of the oiling setup and you can see what I mean


    Sent from my iPhone using Tapatalk
  7. Replies
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    9,630

    Re: Need help - dovetail/gib oiling

    On my setup the oil fitting go on the side of the casting and the oil hole goes straight to the gib. A perpendicular hole was drilled so oil can get to the way surface.

    In order to achieve oil...
  8. Replies
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    9,630

    Need help - dovetail/gib oiling

    Do you have tapered gibs? If so then you should be fine.

    With parallel gibs I had to make a 0.4mm metering hole on the gib side to ensure that both the gib and the dovetail received oil.

    For...
  9. Replies
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    Re: Need help - dovetail/gib oiling

    SMC push fittings:

    M6 thread: KQ2L04-M6A
    M5 thread: KQ2VS04-M5A

    Needle valves are AS1201F-M5-04A

    All fittings take 4mm OD tubing.

    The part numbers are for the metric version, but SMC...
  10. Replies
    52
    Views
    9,630

    Re: Need help - dovetail/gib oiling

    As for fittings I used the white plastic ones from SMC with 4mm OD nylon tubing. Good quality and available in several thread styles.

    Mandatory is a good needle valve manifold. The china ones are...
  11. Replies
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    9,630

    Re: Need help - dovetail/gib oiling

    Any kind of cutter will do. Don’t overthink it.

    The dovetail has a 60 degree angle so the oil channel will not look that pretty. Just use any cutter you have on hand and calculate the depth of cut...
  12. Replies
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    9,630

    Re: Need help - dovetail/gib oiling

    Looks good


    Sent from my iPhone using Tapatalk
  13. Replies
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    Views
    9,630

    Re: Need help - dovetail/gib oiling

    Dovetail channels can only be made straight. I used a slitting saw for this operation.

    And the gibs are drilled through where the oil is squirted.

    I have also cut a channel on the gib face. No...
  14. Replies
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    9,630

    Re: Need help - dovetail/gib oiling

    One diagonal straight is enough. The Z shape is just for design.

    The idea with the diagonal cut is to spread the wear over the whole way width. Some say that a straight cut (like mine [emoji2958])...
  15. Replies
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    9,630

    Re: Need help - dovetail/gib oiling

    Hi,

    If I remember correctly 1mm.

    Made them with a 3mm ball endmill.

    Depth is not really critical. The oil pump puts enough pressure to get the oil where it needs to go.

    But if I were to...
  16. Thread: New lathe purchase

    by DLF
    Replies
    8
    Views
    3,516

    Re: New lathe purchase

    Hi diyXpert,

    The corona crisis delayed my plans for a while. But the Paulimot is still on top of my list.

    BR,
    Andrei


    Sent from my iPhone using Tapatalk
  17. Replies
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    999

    Re: Alternative to Taig mill?

    BF20 is the same as G0704 but with some castings differences.

    But you would want the BF20L version that has longer X travel.

    Conversion wise there are many CNC kits available. In europe there...
  18. Replies
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    999

    Re: Alternative to Taig mill?

    Hello,

    Taig mill is tiny. Save some more money and get a BF20. You will be way more happy


    Sent from my iPhone using Tapatalk
  19. Replies
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    Machine lighting - IKEA LED Lamp

    Hello,

    I had an IKEA LED lamp lying around and I decided to make a lamp for my Optimum MH25 mill.

    While others have also used this lamp for their machines, I decided to take a slightly...
  20. Thread: Optimum MH25V

    by DLF
    Replies
    41
    Views
    7,579

    Re: Optimum MH25V

    Some weeks have passed since I started using the machine. In the mean time first parts have been produced and I would like to give some conclusions to this review.

    I made a nice pair of vise...
  21. Thread: Optimum MH25V

    by DLF
    Replies
    41
    Views
    7,579

    Re: Optimum MH25V

    Had some trouble with the Z axis screw. The bearing block was not aligned with the Z nut. It was 3mm off and was binding at the top. I elongated a few mm the bearing block screw holes and now the Z...
  22. Thread: Optimum MH25V

    by DLF
    Replies
    41
    Views
    7,579

    Re: Optimum MH25V

    Hello,

    I made a lot of progress with the mill.

    I finalized machining the gibs. Added dimples on the back side to accomodate ball ended adjustment setscrews. This makes gib adjustment super...
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    Re: Just another vise review

    Made more progress with the vise.

    Bolted on the table and measured how parallel the ways are to the table. Result: 5 micron difference (0.0002") over 100mm distance.

    When fully tightened both...
  24. Replies
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    Just another vise review

    Hello,

    Just received a new 4" size machine vise.

    It is a Kurt lock-down clone made in Taiwan and sold under the brand Knuth.

    Model number is PMZ100:...
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    Re: 5um vs. 1um linear encoders

    Thank you all for your advise. I went the 1um sensors route.

    I ordered them from a uk based supllier. The sensors are made by some company out of india: electronicaems. They seem to work very well...
  26. Re: Anyone familiar with motion controllers/software which can support dual loop cont

    Option 1: Delta AC servo controllers have both motor encoder input and table linear encoder input. They have encoder output signal + position error alarm signal. Dual loop can be closed at the servo...
  27. Replies
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    2,880

    Re: 5um vs. 1um linear encoders

    Partially I agree with your statements.

    Adding a control loop might add instability to the system in the form of jitter or faults, depending on the setup. But only in case the control loop is set...
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    2,880

    5um vs. 1um linear encoders

    Hello,

    I am about to purchase linear encoders for the mill.

    They will be connected to a DRO for now, but in the (not so distant) future the mill will ve converted to CNC and the linear encoders...
  29. Replies
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    Re: Optimum DRO5 pinout (rebranded SIKO MA 523/1)

    The low resolution you are getting is because of the magnetic tape.

    The reading head might be capable of 5 microns, in the end it is just a magnetic pick-up coil. But the tape must also be...
  30. Replies
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    3,928

    Re: Optimum DRO5 pinout (rebranded SIKO MA 523/1)

    Something is very strange with many of these china products.

    In the Optimum documentation from my milling machine the indicated DRO5 sensor is the MS100 from SIKO.

    I finaly found more info...
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