Large sword internal support | Frankly Built's 3D Printing & Cosplay Community | Page 1

gleaming glacier Oct 10, 2024, 5:52 PM

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I printed a long sword from the Devil May Cry series and it came with channels inside the pieces for some pipe.

The problem I've ran into is that the measurements for the internal support are in metric and I can't find any equivalent in America for a 300mm copper pipe (recommended by the file creator).

Would getting a smaller rod or pipe and then filling the gaps with something work well enough to keep the prop from bending when being handled? It's just a prop for cosplay, not going to be smacked around or anything rough.

Thanks for any advice!

hidden ravenBOT Oct 10, 2024, 5:52 PM

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oak oriole Oct 12, 2024, 6:03 AM

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What about wood, solvent wielding or the trickyer compression by tension of a rope

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https://www.amazon.com/300mm-Length-Copper-Plumbing-Diameter/dp/B0C5ZN1GJ1

200/250/300mm Length Red Copper Tube Plumbing Pipe/Tube DIY Rod Inn...

Specification: Material: red copper Color: red Length: approx. 200mm/250mm/300mm Inter Diameter: approx. 1mm - 16mm Outer Diameter: approx. 2mm - 18mm Wall thickness: approx.1-2mm Feature: Copper conductivity and thermal conductivity second only to silver, widely used in the production of conduct...

gleaming glacier Oct 12, 2024, 4:37 PM

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Thank you for the recommendations! Could you give me some insight on those methods? I'd order the copper pipe online but the shipping times are a nearing deal-breaking territory. Thanks again!

oak oriole Oct 12, 2024, 4:43 PM

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Well the first one would be using thf so your pla parts "melt" together

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The other method would be that the parts get compressed with the tension of the rope. Like golden gatebridge just in reverse.

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https://www.printables.com/model/243319-print-in-place-tensegrity

Printables.com

Print In Place Tensegrity by rcmz | Download free STL model | Print...

Print in place tensegrity table using chains as the tension element, with built-in tensioner and support | Download free 3D printable STL models

gleaming glacier Oct 12, 2024, 5:09 PM

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Was definitely going to use jp weld, but may try thf. The pieces aren't very heavy but I'm worried that without something literally as a solid core that it may flop around.

Do you think just welding would be strong enough? It's a little under 6ft in length, but each piece is fairly lightweight.

oak oriole Oct 12, 2024, 5:23 PM

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I did a few tests witg 30% infill 3 wall 3 top 3 bottom layers

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Due the solvent it turns more or less into a solid material. No layer lines

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But other question why must it be copper?

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Glasfiber, solid ptfe, wood are no option?

gleaming glacier Oct 12, 2024, 8:36 PM

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Anything solid that fits snug is totally fine. Here's some pictures of the channel I'm trying to fill/support. Runs from the hilt almost all the way to the tip.

oak oriole Oct 12, 2024, 10:15 PM

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Hmmm

#Large sword internal support