Dumas 1:20 scale PT Boat Upgrades

Looking for upgrade weapons for your Dumas PT-109 kit? The 48 inch-long 1:20 scale model? Something more than wood dowels for machine guns? And you’re bummed that neither HR Products nor Mosquito Boat Hobbies’ aftermarket offerings are available anymore?

Well, I have a number of detailed weapons available as 3D-printed kits at Shapeways, in my Matthews Model Marine shop:
https://www.shapeways.com/shops/patmat

Each has a detailed instruction document, available to download from my store.

The weapons are also available in 1:24 and 1:16 scale, and can be further scaled up and down as required… except, I usually can’t offer 1:48 or 1:35 and smaller, as many details on these models are already at their smallest printable size in 1:24.

The material used for most of these parts is Shapeways’ “Frosted Detail”, which is a UV-cured acrylic plastic. Please see my document Working with Shapeways’ “Frosted Detail”, posted at my Shapeways shop.

 

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Breech door assembly for Mk 18 torpedo tube.

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50 caliber Browning machine gun sets, available with ammo belts.

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Cowl vent hoods… make the rest of the vent with tubing, easy.

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20mm Oerlikon, also available on the new lighter tripod mount.

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The famous 37mm cannon liberated from Army P-39 fighters.

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40mm Bofors single

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