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Type: Posts; User: CL_MotoTech

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  1. Replies
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    Re: Just ordered the last melon (Torus)

    An easy workaround for your math issues is to just use the built in calculator in Windows. My keyboard has a dedicated calculator button, you push it, you have a calculator. It even provides history...
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    Re: PM45 mill upgrades

    Pretty cool! I built a trunnion for my G0704 and got tired of messing with it and ended up scrapping it.

    Yours seems to work better than mine did. Though the designs were nearly identical.
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    Re: G0704 Tapered Bearing Upgrade

    I understand the concern regarding the moment on the quill sans a top support, however, that concern has been invalidated by my machine and my extensive testing. I run 2.2kw belt drive at 6k. I never...
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    Re: G0704 Tapered Bearing Upgrade

    This sort of became a build thread. Though that wasn't the initial intention.

    https://www.cnczone.com/forums/benchtop-machines/398958-posts.html
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    Re: G0704 Tapered Bearing Upgrade

    The problem with sticking with the quill setup is that it introduces lash into the system. It's probably manageable, but I noticed a nice increase in finish quality once I got rid of it. It's also...
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    Re: G0704 Tapered Bearing Upgrade

    248 and 251 are the only spindle bearings. Bearings 205 and 207 carry the drive train. The quill function. Yes, they turn with the spindle, but the only carry the load of the drive. With the gear...
  7. Re: Will build a Benchtop mill including Castings! Comments appreciated.

    The unfortunate reality is that I think most of this forums members have slowly moved on to other forms of internet communication. Likely Facebook. The problem is that groups there are so...
  8. Thread: IMTS 2022

    by CL_MotoTech
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    Re: IMTS 2022

    A friend of mine went and had a good time asides from getting COVID. I would have liked to have gone but I used up most of my vacation days for the year.

    This forum seems mostly dead, probably...
  9. Re: ATC draw bar for BF30/PM30 type of bench mills "BT/ISO30 spindle"

    I believe it is possible to regrind an R8 spindle for BT20, not sure about 30. Then it is just a matter of building the drawbar.

    Most go for TTS though, it's just a lot less messing around. Of...
  10. Re: Speeds, Feeds, and Strategies for Bench Top Mills

    Not exactly a CNC machine update, but the fruits of the CNC machine in this thread is paying off. We are close to race time. A little less than two weeks to go!

    We adjusted the squish on the...
  11. Re: Ball screws are a bit crunchy. :) What to do?

    The best way to go after this is to take the screw and nut out of the machine (assuming it isn't a thrust bearing issue), pump a bunch of thin oil or even a light solvent through the nut/s while...
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    Re: Current ballpark cost build vs buy~

    I too would go larger than the 25 size mill if I could. I bought what I could fit down my basement stairs at the time, and it is still working, though in a much larger shop at this point. I machined...
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    Re: Current ballpark cost build vs buy~

    A G0704 or PM25 would do that volume.

    You are going to spend like $2000 plus the cost of the mill for a basic conversion. I'm sure you can do it for less, but realistically if it is done right I...
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    Re: Parking spindle after job

    Just setup Park 1 or Park 2 in the UCCNC profile to send it where you want it.

    It's super easy. You find the profile folder and edit the correct macro, I forget what number it is, but you simply...
  15. Re: Speeds, Feeds, and Strategies for Bench Top Mills

    Pretty happy with the Side B. There are a couple of little things, as usual, my programming is the weakest link.

    https://i.imgur.com/uyGPxvn.jpeg
  16. Thread: THE GRIZZ

    by CL_MotoTech
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    Re: THE GRIZZ

    Don't you have your photos stored in that google drive?

    I went back as far as page 16 and the photos are still working.
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    Re: FNR CNC Builds (lathe, mill, router)

    You and I have conversed on reddit, but I just want to say I like your rally reference in your handle.
  18. Re: Speeds, Feeds, and Strategies for Bench Top Mills

    That failed cover is actually magnesium, a rather nice part if you drain your water after every ride. Pretty worthless if you don't, despite the nearly $200 price. My cover suffers from the same CNC...
  19. Re: Speeds, Feeds, and Strategies for Bench Top Mills

    lol, thanks! My wife says it is a penis, shows where her mind is. It is what I hope to be the final version of my high capacity Suzuki GT750 water pump. The high capacity impeller shown above, this...
  20. Re: Speeds, Feeds, and Strategies for Bench Top Mills

    I turned a 5.25" by 6.5" by 1.25" piece of aluminum into something smaller, though it isn't done. I think the spindle is a spot loose now, but the work is still good.

    Side B is yet to come, custom...
  21. Re: Speeds, Feeds, and Strategies for Bench Top Mills

    This was a fun one. The impeller required large stick out on a .25" end mill. I had the tool 1.6" outside of the ER20 holder to avoid a crash. The only major issue with the part was that the center...
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    Re: Base for benchtop mill?

    It would probably work fine assuming you are at like a 25 size mill or less. The G0704 base is pretty flimsy, as are the PM bases that I have seen. Reinforcement is a good idea if you go the toolbox...
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    Re: DIY mill from commercial castings?

    I bought a used 1:80 harmonic drive on eBay for my A axis and used a 1:60 belt drive for C. The issues I ran into were seemingly just cumulative errors that started from the G0704 not being great and...
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    Re: DIY mill from commercial castings?

    That A and C axis are freaking off the charts cool. What items did you use to make that? I spent a lot of time making a trunnion table for my G0704 and ultimately realize the work area just got too...
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    Re: PM1022 lathe CNC Conversion

    I admire your craftsmanship. Keep it up!
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    Re: Precision Matthews 1127 CNC Conversion

    I started on the CAD model and am still waiting on ballscrews. I've been looking at various options for how I want to do the enclosure. My shop is small and I am quickly running out of space. I...
  27. Re: Ballscrew Bearing/Thrust Bearing Arrangement (G0704)

    https://i.imgur.com/sRbnbJt.png

    https://c.tenor.com/FzJQFWDn5AkAAAAC/jordan-laugh.gif
  28. Re: Ballscrew Bearing/Thrust Bearing Arrangement (G0704)

    Hang in there buddy, i'm sure being a professional CNCZone poster will get you where you think you should be.

    https://i.imgur.com/MuOCNks.png
  29. Re: Ballscrew Bearing/Thrust Bearing Arrangement (G0704)

    Please do go on. You going to call me a poo poo head next?
  30. Re: Ballscrew Bearing/Thrust Bearing Arrangement (G0704)

    Sure, I have a home converted G0704 and when I need to replace an $8 bearing I will toss it on the surface grinder and set the preload.

    Or, I could just turn a wrench and set the preload. It takes...
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