Cheap bridge

Postby bfrank1982 » Tue Oct 03, 2017 7:25 pm

Hi gents.

Found some packing foam at work, wich looks like an old stone bridge?

Going to modify the foam for use as the sides.

Planning on building the bridge itself from hardwood and place the foam om the sides for decoration.

What do you think?

Any suggestions?ImageImageImage

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Postby RobW » Wed Oct 04, 2017 9:19 am

Good idea. My only suggestion would be to shape the piers as stone bridges tend to have angled piers to reduce water pressure force and deflect debris.

http://www.geograph.org.uk/photo/2924304

This is the downstream end of a medieval bridge showing what I mean.

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Postby Marco Peter » Wed Oct 04, 2017 9:22 am

Good idea, you acan easily shape this material with a knife.

If you are taking it apart to build it from severals blocks, remember that sticking wooden pins in (like tootpicks or larger) is a great way to keep the pieces together! ;-)

But... It really matters how you will texture/color it. The current texture is not very stone-like. Because it's quite soft material, plaster or such will easily crack and fall off, same goes for textured paint. Spraying with a rattle can (depending on the brand) can dissolve these packaging materials.

Conclusion: make sure you have some extra pieces to practice on before you build your masterwork! :-)
Last edited by Marco Peter on Wed Oct 04, 2017 9:24 am, edited 1 time in total.
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Postby bfrank1982 » Wed Oct 04, 2017 9:24 am

RobW wrote:Good idea. My only suggestion would be to shape the piers as stone bridges tend to have angled piers to reduce water pressure force and deflect debris.

http://www.geograph.org.uk/photo/2924304

This is the downstream end of a medieval bridge showing what I mean.
Good idea.

Once I her the bridge deck itself sorted, it is time to bring out the sharp hobby knife

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Postby bfrank1982 » Wed Oct 04, 2017 9:25 am

Marco Peter wrote:Good idea, you acan easily shape this material with a knife.

If you are taking it apart to build it from severals blocks, remember that sticking wooden pins in (like tootpicks or larger) is a great way to keep the pieces together! ;-)

But... It really matters how you will texture/color it. The current texture is not very stone-like. Because it's quite soft material, plaster or such will easily crack and fall off, same goes for textured paint. Spraying with a rattle can (depending on the brand) can dissolve these packaging materials.

Conclusion: make sure you have some extra pieces to practice on before you build your masterwork! :-)
Great advice. Will deffinitely remember that!

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Postby Marco Peter » Wed Oct 04, 2017 9:39 am

Didn't want to hijack your thread so I just started a new one where I show how I made a bunker using the techniques I just described:
viewtopic.php?f=189&t=24019&p=222895#p222895
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Postby Marco Peter » Wed Oct 04, 2017 9:42 am

Just looked at your 'bridge' again, why not flipping the pieces over so the middle parts touches the ground in order to be a supporting part of the structure?
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