Forums Modeling Modeling
  • Topic: Dexter-Turbine Windmill Project

    Back To Topics
    (0 rates)
    • January 31, 2020 5:58 PM EST
      • People's Republic Of Maryland, USA
         
      • Posts
        2,155
      • Thanks
        1,405
      • Thanked
        1,040

      John, I looked into centrifugal pumps being advertised in the western US for windmill use in the 1870-1880 time frame, but the only cases I saw were in Australia. Very interesting though, and thanks again for bringing up that possibility.

       

      After checking on the timing & circumstances, I have to conclude that it was probably Southwick's pump that was originally installed at Mound House. Southwick claimed, in his 1870 catalog, that his mills were supplied with a free pump & pipes, and from 1875 onward he displayed his pump along with his mill at annual trade shows (e.g., in Sacramento). Since it was in 1876 that the Mound House mill was sold and erected, a free Southwick pump would have been included, and likely installed. 

       

      I don't know how it was connected, so I have had to imagine some contraption. Since I've seen a vertical crosshead applied for a different vertical-axis mill, I've gone in that direction here. 

       

       

      To simplify construction and ensure alignment, a single 3d-printed core (shown in dark gray) holds all together. Brass shafts connect the moving bits, and cedar forms the cosmetic frame.

       

      Here's a very rough video (I couldn't get Solidworks to cooperate on this), which you can loop by right-clicking in the middle of the video and checking 'loop'.

       

       

      Not quite done with all this, but I wanted to give an update.

       

    • January 31, 2020 6:33 PM EST
      • Pleasanton, CA
         
      • Posts
        1,070
      • Thanks
        1,188
      • Thanked
        798

      That is quite a thang there, that is. Pretty cool. I wonder how much friction load it will add to your mill. Be interesting to see...

    • January 31, 2020 6:39 PM EST
      • People's Republic Of Maryland, USA
         
      • Posts
        2,155
      • Thanks
        1,405
      • Thanked
        1,040

      Thanks Jim, and yeah, I think I mentioned earlier that I don't know how much drag this will be on the mill, meaning, it probably won't work -- at least in low fan speeds. But, I figure, what the heck; might as well try. And when it doesn't work, I can always say, to paraphrase Flip Wilson, "the Devon made me do it," haha! Well, and Dan.

    • January 31, 2020 9:57 PM EST
      • People's Republic Of Maryland, USA
         
      • Posts
        2,155
      • Thanks
        1,405
      • Thanked
        1,040

      Thanks all for being interested in this project, and for all the encouragement you've given me through the effort.

       

      I admit wholeheartedly that this pump contraption I designed wasn't anything like what existed. But, as you know, when you have to build something, you have to decide on what it will be. So I'll go forward with this design, simply because I have to wrap the project up.

       

      However, I'm sure that after building it, articles and photos and drawings will emerge that will show how it was really done, and probably far more simply. 

       

      Even so, if one tries to do historical modeling, one has to put a stake in the ground and say "this physical thing represents what I think," even if the research is incomplete. But in so doing, that illustration entices further investigation by others, and then you have to later caveat your work in regards to their subsequent findings.

       

      These are the sorts of things I'm experiencing with this project. Not just on the model front, but mainly on the article publication front.  

       

      But, z'all fun!! And I'm so grateful for this forum to share my efforts with my friends.

       

      Many thanks for viewing,

      ===>Cliffy

       

      This post was edited by Cliff Jennings at February 1, 2020 7:18 AM EST
    • January 31, 2020 11:07 PM EST
      • Southern Oregon
         
      • Posts
        1,832
      • Thanks
        378
      • Thanked
        803

      Very shrewd insite in your comments above Cliff.  We only do the best we can and hope we come close.

    • February 1, 2020 7:47 AM EST
      • Hendersonville, North Carolina
         
      • Posts
        269
      • Thanks
        48
      • Thanked
        79

      I’m truly impressed with your work Cliff. You’ve set many standards and goals for me. I wish I had the required skills to master the new technologies you continue to display. We’ll done. 

      Doc

    • February 1, 2020 8:54 AM EST
      • People's Republic Of Maryland, USA
         
      • Posts
        2,155
      • Thanks
        1,405
      • Thanked
        1,040

      Don Watson said:

      I’m truly impressed with your work Cliff. You’ve set many standards and goals for me. I wish I had the required skills to master the new technologies you continue to display. We’ll done. 

      Doc

       

      Thanks very much Doc, that means a lot! I look forward to seeing you and your amazing work in March.

    • February 15, 2020 5:16 PM EST
      • People's Republic Of Maryland, USA
         
      • Posts
        2,155
      • Thanks
        1,405
      • Thanked
        1,040

      The parts for the pump all finally came in, with this glob being the 3d printed bits.

       

       

      The base was wonky, it curled up some where the pump (upper right in the above pic) and the main bearing box (lower right) were. So I had to do some serious surgery on it, with new acrylic parts screwed together to straighten it out. Here's that, and the other parts now separated. 

       

       

      ===>Cliffy

       

       

    • February 16, 2020 5:03 PM EST
      • People's Republic Of Maryland, USA
         
      • Posts
        2,155
      • Thanks
        1,405
      • Thanked
        1,040

      My excuse this weekend and last for going so slow on this project is that I've been working on that thing we can't mention... but it rhymes with shmaxes. After all that yippeeness, I had some actual fun this afternoon cutting and gluing on the cedar boards for the pump.

       

       

      This is the first time I've used contact cement on a model project. Gluing anything to 3DP nylon is tough; some parts have actually laughed at me when I applied CA or epooxy to them. But this stuff really seemed to work.  Here's the finished cladding. 

       

       

      Next weekend will hopefully be assembly of the pump and installing it on the mill. 

       

      ===:>Cliffy

    • February 16, 2020 5:31 PM EST
      • Waverly, Alabama
         
      • Posts
        2,005
      • Thanks
        784
      • Thanked
        785

      That's a fancy looking pump, Cliff   Can't wait to see it on the mill and operating.

      ____________________________________

       

    • February 16, 2020 5:48 PM EST
      • Vail, Az
         
      • Posts
        5,279
      • Thanks
        1,738
      • Thanked
        1,294

      In no time at all, the little interest you have stirred up will lead to Google searches and soon your work will be the standard, unless some bum like me finds a pic....

      ____________________________________

      John

       

      The older I get, the less I know, please don't make me prove it.

       

       

    • February 16, 2020 7:00 PM EST

      •  
      • Posts
        14,469
      • Thanks
        2,453
      • Thanked
        1,459

      Cliff,

       What contact cement did you use  ?

    • February 16, 2020 8:04 PM EST
      • Pleasanton, CA
         
      • Posts
        1,070
      • Thanks
        1,188
      • Thanked
        798

      Nifty Cliff! Good luck with your shmaxes!

       

    • February 17, 2020 3:47 PM EST
      • People's Republic Of Maryland, USA
         
      • Posts
        2,155
      • Thanks
        1,405
      • Thanked
        1,040

      Rooster ' said:

      Cliff,

       What contact cement did you use  ?

       

      Dap Weldwood. 

    • February 17, 2020 3:51 PM EST
      • People's Republic Of Maryland, USA
         
      • Posts
        2,155
      • Thanks
        1,405
      • Thanked
        1,040

      John Caughey said:

      In no time at all, the little interest you have stirred up will lead to Google searches and soon your work will be the standard, unless some bum like me finds a pic....

       

      Haha! Right, 5 five years from now, someone will publish an online article using an image of my totally fictitious pump to prove how it was really done.   

    • February 17, 2020 3:53 PM EST
      • Marysville, Kansas
         
      • Posts
        903
      • Thanks
        930
      • Thanked
        359

      Cliff Jennings said:
      John Caughey said:

      In no time at all, the little interest you have stirred up will lead to Google searches and soon your work will be the standard, unless some bum like me finds a pic....

       

      Haha! Right, 5 five years from now, someone will publish an online article using an image of my totally fictitious pump to prove how it was really done.   

       

      Still waiting on my plans....

    • February 17, 2020 8:19 PM EST
      • People's Republic Of Maryland, USA
         
      • Posts
        2,155
      • Thanks
        1,405
      • Thanked
        1,040

      Chris Kieffer said:
      Cliff Jennings said:
      John Caughey said:

      In no time at all, the little interest you have stirred up will lead to Google searches and soon your work will be the standard, unless some bum like me finds a pic....

       

      Haha! Right, 5 five years from now, someone will publish an online article using an image of my totally fictitious pump to prove how it was really done.   

       

      Still waiting on my plans....

       

      They're all in SolidWorks... Waiting for you to come over to the bright side...   <<--- edited this post to insert happy faces, to hopefully cheer Chris up in his Pro-E modeling world. 

      This post was edited by Cliff Jennings at February 17, 2020 8:38 PM EST
    • February 22, 2020 3:16 PM EST
      • People's Republic Of Maryland, USA
         
      • Posts
        2,155
      • Thanks
        1,405
      • Thanked
        1,040

      Other than some blackening & weathering, this project is about done! The pump went together far easier than I expected; and and I was pleasantly surprised when (with the fan on medium speed) the mill ran the pump model. 

       

       

      The three little silver-looking disks on the ends of pivot shafts are tiny stainless toothless retaining rings from McMaster. I didn't know how they'd work, but found them easy to tap on with a small bit of thick tube. And they really seem to bite in and say put.

       

      Here's a video showing the thing working.

       

       

      Cheers,

      ===:>Cliffy

    • February 22, 2020 5:30 PM EST
      • Pleasanton, CA
         
      • Posts
        1,070
      • Thanks
        1,188
      • Thanked
        798

      Another awesome project from “the Cliff” .... extremely well done!

    • February 22, 2020 5:53 PM EST
      • Post Falls, Idaho
         
      • Posts
        8,219
      • Thanks
        2,321
      • Thanked
        1,257

      Such an awesome job my friend. Beautiful work

      ____________________________________
Forums Modeling Modeling

    Icon Legend

  • Topic has replies
    Hot topic
    Topic unread
    Topic doesn't have any replies
    Closed topic
    BBCode  is enabled
    HTML  is enabled

Add Reputation

Do you want to add reputation for this user by this post?

or cancel

Ads by Google