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    1. Kit: Tamiya/Scale-Master, by (VIP/Sponsor) ScaleMaster is offline
      Builder Last Online: Jan 2020 Show Printable Version Email this Page
      Model Scale: 1/12 Rating:  Thanks: 0
      Started: 06-02-19 Build Revisions: Never  
      Supported Attribution Scratch Built Build in Progress

      I pulled this kit from my stash on May 5, 2019; the night we got home from the GSL.

      1997 reissue of the 1970 Tamiya Lola T-70 Mk III kit. It's been patiently waiting for 22 years in my stash to be built.
      I've been researching, planning and figuring all month. (Actually I was scheming a couple days before in case I didn't find a dream deal on another Caterham kit during the show/trip.)
      It will be built as a street car T-70 replica with some modern upgrades.


      I started by cleaning up the tub and main body panels.
      Lots of filling and sanding Lola T-70 Mk III to remove the twenty ¼ inch diameter ejection pin marks in the tub alone and general parting lines. But still a nicely molded kit considering its age.


      The insides of the body also needed to be addressed for the same issues.




      Lola T-70 Mk III
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  1. ScaleMaster's Avatar VIP/Sponsor
    Name
    Mark
    Join Date
    Nov 2012
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    703
    This is the rear section of the new rim design; it still needs to be final machined.




    Lola T-70 Mk III
    Build what you want and build it for yourself, the rest will follow... - Mark D. Jones
    QUOTE QUOTE #167

  2. ScaleMaster's Avatar VIP/Sponsor
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    Mark
    Join Date
    Nov 2012
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    703
    The U.V. resin Lola T-70 Mk III is very hard and brittle. That part did not survive the machining process.
    I started growing a beefier part and realized I could probably machine one from scratch faster.
    I was correct, made this from scratch and the printer is still running.




    Lola T-70 Mk III
    Build what you want and build it for yourself, the rest will follow... - Mark D. Jones
    QUOTE QUOTE #168

  3. JunkGTZ's Avatar VIP/Sponsor
    Name
    Larry
    Join Date
    Dec 2012
    Posts
    349
    Thoroughly enjoying this! Wish I could do things at this level, but it's not my area of expertise. Good schooling for me though. Thanks for showing us so much detail in the process of building. Pretty incredible skills you've got here!
    QUOTE QUOTE #169

  4. ScaleMaster's Avatar VIP/Sponsor
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    Mark
    Join Date
    Nov 2012
    Posts
    703
    Thank you Larry!

    I grew a new alternator fan but the inside filled in, a common issue with this printer.

    So I machined it out.



    Lola T-70 Mk III
    Build what you want and build it for yourself, the rest will follow... - Mark D. Jones
    QUOTE QUOTE #170

  5. ScaleMaster's Avatar VIP/Sponsor
    Name
    Mark
    Join Date
    Nov 2012
    Posts
    703
    I had a bit of a setback when it turned out that the platinum based RTV Lola T-70 Mk III I use primarily would not cure Lola T-70 Mk III against the U.V. cured 3D resin Lola T-70 Mk III from the printer. Even after using the sealing materials that worked as barriers in the past, the molds were not curing Lola T-70 Mk III and worse than the time loss was it making gooey messes on my patterns. That took many hours over several days to clean up.
    I invested in some tin based RTV Lola T-70 Mk III and that seems to be the right stuff for this resin Lola T-70 Mk III .
    Here are the calipers and one pair of pads I'll use on the car.




    Lola T-70 Mk III
    Build what you want and build it for yourself, the rest will follow... - Mark D. Jones
    QUOTE QUOTE #171

  6. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    Feb 2017
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    1,098
    Well I share your pain.

    It’s always fun to find out there’s a problem after the fact.

    I have been making RTV Lola T-70 Mk III molds, a few really big ones on occasion, and my employer keeps on changing primers on me! I can’t afford to pour five gallon molds and not be sure it will cure Lola T-70 Mk III , so on the big stuff I always insist on tests. -but every now and then someone, or me, will want a “quicky” and not give me the time to spray a barrier. And oops!

    I have had to clean every little nook and cranny a few times. Fun!
    Last edited by MODEL A MODEL; 01-18-20 at 06:14 PM.
    QUOTE QUOTE #172

  7. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    Feb 2017
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    1,098
    I’m in Irvine and purchase from BJB almost exclusively. Some of they’re Tin based RTV Lola T-70 Mk III have pretty quick demolds. TC5024 or 26? demolds in 4 hours.
    QUOTE QUOTE #173

  8. Roger Zimmermann's Avatar Yearly Subscriber
    Name
    Roger
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    May 2012
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    2,679
    This bad experience is showing that there is never a perfect solution for a specific task. I'm glad I'm not into this, but I can feel the pain!
    QUOTE QUOTE #174

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