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dodgem37

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dodgem37 last won the day on February 5 2018

dodgem37 had the most liked content!

About dodgem37

  • Rank
    Senior Member
  • Birthday 06/24/1952

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  • Gender
    Male
  • Location
    Silver Spring, Maryland USA

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  1. dodgem37

    Mojo gone missin...

    I substitute other projects to take my mind off of modeling. Such as my wifes' Honey-do list. Best of luck. Sincerely, Mark
  2. dodgem37

    1/18 P51C Mustang "Lopes Hope the 3rd"

    Came back for another look. Quite the threading exercise. Great show. Sincerely, Mark
  3. dodgem37

    1/18 P51C Mustang "Lopes Hope the 3rd"

    This is just the greatest, Peter. Brings back rewarding problem-solving memories of the Tamiya kit for me. Thank you. By way of P-51B/C Manuals. I have a full set. Thank you. Sincerely, Mark
  4. dodgem37

    1/18 P51C Mustang "Lopes Hope the 3rd"

    Welcome to the 'Plumbing a P-51 Wheel Well' Club. Ha, ha, ha. I really like that tie wire you ran from bolt to bolt on the black box. Sincerely, Mark
  5. Soak in Windex or alcohol overnight to dissolve Future. Sincerely, Mark
  6. dodgem37

    Finished... 1/32 Hasegawa Focke Wulf Fw-190A-9

    Great show. Love that! Sincerely, Mark
  7. dodgem37

    1/32 Trumpeter Me 262A-1a "Yellow 3"

    Nice light-over-dark paint coverage. Nice light-dark contrast on the tires. Sincerely, Mark
  8. dodgem37

    1/18 P51C Mustang "Lopes Hope the 3rd"

    Peter, Your message center is not accepting personal messages. Sincerely, Mark
  9. Great problem-solving and execution, Chuck. Sincerely, Mark
  10. dodgem37

    CAC Boomerang A46-217 “Hep Cat”

    What an educational build. Sincerely, Mark
  11. dodgem37

    1/32 Trumpeter Me 262A-1a "Yellow 3"

    Great show. Sincerely, Mark
  12. dodgem37

    1/18 P51C Mustang "Lopes Hope the 3rd"

    I love this scale. Sincerely, Mark
  13. dodgem37

    "White 22" 1./KG(J)6 Erla 109G-10

    Good show. Tape has ragged edges. Extra nice detail. Sincerely, Mark
  14. dodgem37

    Vacuum Chamber or Pressure pot?

    'I was aware that the best way forward was vacuum degassing of the mould material and then pouring the mould and setting it under pressure.' What would be the purpose of pressurizing the mold? 'At present I have spent about $350 AUS to set myself up casting' I bought a 2-1/2 gallon pressure pot ($99 USD), a vacuum gauge ($20), premium air hoses that won't collapse under vacuum ($5, maybe $10), quick disconnect brass fittings ($12?), and a 3 CFM 2 stage vacuum pump ($160). It was all off of the shelf from Harbor Freight. There must to be something like that in Melbourne. Harbor Freight is an inexpensive tool store. There is debate that the home hobbyist needs both vacuum chamber and a pressure pot. I think that the home hobbyist doesn't need both. Depending on the part, I either vac the resin before or after I pour it into a mold. Small parts I vac before I pour. Vac'ing causes anything liquid you put in a chamber to heat up. Period. Vac'ing out air creates friction which creates heat. Heated resin sets faster. Heated RTV silicon sets faster. With small parts there is time enough to fill the part cavity. For larger parts, not so much. For larger parts I vac after I pour. I make sure the mold has a casting block so I have a resin reservoir. I vacuum out trapped air, then when I release the vacuum the rise in air pressure forces the resin that is in the reservoir into the mold which fills the void left by the air. This saves me from having to purchase a second chamber. 'With a pressure pot, air bubbles go out of resin.' Thierry, don't you mean under pressure bubbles are compressed in resin? I have the T-shirt as well. I molded and cast parts for years before it came time to upgrade. I went through the same thing you are going through before I bit the upgrade to chamber bullet. Which will it be? Hobbyist Grade vs Professional Grade? My head swirled. I don't want to waste good money. Throw good money after bad correcting a mistake. I chose Hobbyist Grade and solved problems with my brain instead of my wallet. It's only a hobby. I don't even need it. It's just something I want. Anyway. This is just my 2 cents. Don't break the bank. Best of luck. Sincerely, Mark
  15. Very sharp work. Great show, Chuck. Glad you're here. Sincerely, Mark
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