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IndustryArena Forum > MetalWorking Machines > Benchtop Machines > Graham's Optimum BF20 Build
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  1. #181
    Join Date
    Nov 2012
    Posts
    220

    Re: Graham's Optimum BF20 Build

    Quote Originally Posted by Foreigner76 View Post
    Where did you buy these fittings with valves? I can not find them on e-Bay.
    The fittings you see in the last picture are composed of three different parts.

    I got the push-to-connect fittings from McMaster Carr.

    I got the right angle and check valves from:

    Product Catalog | Beswick Engineering

  2. #182
    Join Date
    Nov 2012
    Posts
    220

    Re: Graham's Optimum BF20 Build

    I upgraded the mount for my Fogbuster and thought I would share some pics of it--really happy with how it turned out.








  3. #183
    Join Date
    Jun 2008
    Posts
    71

    Re: Graham's Optimum BF20 Build

    Quote Originally Posted by gcofieldd View Post
    Beswick Engineering
    How much did they cost? Beswick wants me to "create an account" before they'll tell.

  4. #184
    Join Date
    Nov 2011
    Posts
    205

    Re: Graham's Optimum BF20 Build

    Quote Originally Posted by X2cnc View Post
    How much did they cost? Beswick wants me to "create an account" before they'll tell.
    Sounds like they are not very proud of their prices.

    Don

  5. #185
    Join Date
    Jul 2004
    Posts
    108

    Re: Graham's Optimum BF20 Build

    Ha, just read through your log again, what an inspiration Been a whiles since I last posted here.

    Cannot wait for the next instalment!

    Cheers,
    Beano

  6. #186
    Join Date
    Mar 2014
    Posts
    1131

    Re: Graham's Optimum BF20 Build

    Any news on this project?

  7. #187
    Join Date
    Nov 2012
    Posts
    220

    Re: Graham's Optimum BF20 Build

    Hey,

    Sorry for not posting much. I have been putting stuff up on Instagram.
    I have been inching forward with the linear rail conversion and have been doing some other stuff.
    I will post an update with everything in a couple of weeks. I am heading out of town right now.

  8. #188
    Join Date
    Nov 2012
    Posts
    220

    Re: Graham's Optimum BF20 Build

    Sorry for not posting much, but I have been plugging along on the mill. I am still doing the linear conversion on my mill and have been slowly working towards that. The conversion will cause me to redesign the enclosure for my mill since I am switching to a larger table. I have already had the extra table I bought from Precision Mathews machined for rails. I upgraded my compressor to one sold by Home Depot. The brand is Husky and it lets me run my drawbar at 150 PSI. Once I got the new compressor, I increased the capacity of my Belleville washers to 3780 LBF. I am using a double stack of 1890 LBF washers. I don’t get tool pullout anymore. The other thing I did was put together a new spindle. The spindle I had from grizzly did not have an alignment screw for the R8 collet. The new ones do. This may not seem important, but what was happening was every time I took the R8 collet out and put it back in it would wear or score the bore of my spindle in a different place. This caused some bad runout. I was able to fix the old spindle by lapping it against an R8 setscrew tool holder. I would recommend checking your spindle regardless by bluing the inside and checking it against a good tool holder. I upgraded to Mach Standard Mill and got a touch probe. Outside of a new spindle motor, and drawbar, this has been the best thing I have done to my mill. The combination of having a tool table setup with a touch probe as the master tool saves a lot of time. It makes the mill a lot more fun to use and now my chamfers are even when I flip the part. It is better than my Haimer which will not hold a zero. Here are the pictures from what I have been up to.

    Getting my tools and hardware organized:







    Putting together a new spindle:





    Making a spanner wrench for my spindle:





    Got a new touch probe:


  9. #189
    Join Date
    Nov 2012
    Posts
    220

    Re: Graham's Optimum BF20 Build

    Wiring in the touch probe:











    Setting up my tool table:



    Got a bunch of new tool holders:



    Got a new VFD with encoder feedback card (getting ready for the linear conversion):





    Finalizing the design for the linear conversion:





    And here is where I am at today (getting ready to start making parts):





    Oh, and I bought a Brother TC-225 to fixup when I have time:



    Youtube Video:


  10. #190
    Join Date
    Nov 2012
    Posts
    220

    Re: Graham's Optimum BF20 Build

    Oh, and here is my table machined for linear rails:




  11. #191
    Join Date
    Jan 2013
    Posts
    630

    Re: Graham's Optimum BF20 Build

    I wouldn't give up my touch probe and touch plate or Mach Standard Mill. All worth their expense. I don't even pre-measure tools. I issue an m6 t253 to insert the probe. Measure it as part of the tool change, call next tool...measure...wash, rinse and repeat. Most often I just measure during the tool change when running the part even for tools in TTS holders. I'm just simple that way.

  12. #192
    Join Date
    Mar 2014
    Posts
    1131

    Re: Graham's Optimum BF20 Build

    It is an old thread but I still want to ask. How much backlash with the single ball nuts do you have especially on X and Y ?

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