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Type: Posts; User: toyoman

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  1. Replies
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    SlantPro 15L in production environment

    Hello,
    I am seeking opinions from 15L owners about how well these lathes would hold up in a production environment. I own a tooling business that manufacturers custom router bits for the woodworking...
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    Acorn for Multiple Machines

    This may be a stupid question but can I run two different machines (cnc mill and cnc router) with the same free Acorn CNC12 software? Is there a way to configure two separate machines on the same...
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    Clone Knee mill Z axis CNC Conversion kit

    This is a complete kit for a Z-axis CNC conversion using the quill on a Bridgeport Clone knee mill. BP clones are not all the same so I cannot guarantee this kit will fit your mill without...
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    Re: Buying my first CNC from China

    I completed my z axis a few months ago but I used the quill instead of the knee. I was going to do mine like Jim but eventually decided to go the conventional ballscrew route because I didn't have...
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    Re: Buying my first CNC from China

    Call Eric at Winter Engineering and price out a set of Hiwin ballscrews. Last year, when performing my cnc conversion, I contacted Rockford and their rolled screw kit was more expensive than the...
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    Re: cnc knee mill gearing

    I second what Jim is saying, 300 IPM is way too fast for table rapids on a knee mill. 120 IPM is what my Acorn is set to and its plenty fast. Accuracy of axis movement is not just affected by the...
  7. Re: RF-30 clone CNC conversion- picking up where someone left off- need some guidance

    Those look like pretty small diameter ballscrews, my guess is they were used because the previous owner figured out how to fit the ballnut inside the existing leadscrew mount. You can order all new...
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    Re: Clausing Kondia Power Mill Conversion

    I like the Centroid controls on my CNC knee mill retrofit. I've been programming and running Haas mills for a few years and Centroid was easy to pick up on. I don't know much about the Qwik-Switch...
  9. Re: Starting side business in my garage! advice seeked!

    If there are any machining jobs that you could do for your current employer on the side, that's where I'd start. Even if it is pretty basic, like drilling and tapping holes in a part or milling a...
  10. Angular contact bearings provide radial...

    Angular contact bearings provide radial locationing of the screw in regards to the mount. Your standard thrust bearing does not have that ability. I have seen some weird INA-brand ball thrust...
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    Re: Y Axis Backlash on CNC conversion

    I never thought about the y axis ballscrew being unsupported, I can see how that could influence the movement. I'm not ruling out that the ballnut is not preloaded correctly but that is my last ditch...
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    Y Axis Backlash on CNC conversion

    After completing my 2 axis CNC Conversion on my Tawiwan BP clone knee mill, I've found what I believe is an unacceptable amount of "backlash" in my y axis, between 0.0018"-0.002". Both axes use new...
  13. Re: anyone using mcmaster's bridgeport ballscrew kit?

    Try Winter Engineering in California, they sell Hiwin brand ballscrews for Bridgeports and clones. $1850 for a set with the corresponding yoke
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    Re: Looking for advice on ball screw nut repair

    Winter Engineering in California performs repair on ballscrews and ballnuts. I bought some Hiwin ballscrews for my Bridgeport clone from them and Erik is very knowledgeable and responsive.
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    Re: BP Clone Post-Conversion Observations

    I did a few calculations on the theoretical deflection of the X-Y yoke, one for aluminum and one for steel. Using the standard cantilever beam equation and using the following values:
    -distance...
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    Okay, I disconnected the X and Y stepper motor...

    Okay, I disconnected the X and Y stepper motor wires with Acorn and the drives powered down. It made no difference in the drag felt when manipulating the axes by hand. Now, I did set up a drilling...
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    Jim, I will try this tomorrow, or should I say...

    Jim, I will try this tomorrow, or should I say next year haha, and will report back. I'd be so happy to be able to use the machine manually again. I kept my DRO on the machine after the conversion so...
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    Re: BP Clone Post-Conversion Observations

    When cranking the handles by hand, with the steppers and drives powered down, you still have the resistance of the stepper fighting you. I have a 2:1 drive ratio on my machine, mainly to increase...
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    BP Clone Post-Conversion Observations

    This post is intended to help those who are looking into converting their Bridgeport or Bridgeport clone manual mill to CNC. This topic has been discussed many many times in the past but I'd like to...
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