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Thread: Scaling Question
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04-24-2020, 01:07 AM #1
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Scaling Question
If I have an item thats in HO scale (1:87) and I want to print it in N Scale (1:167) how much do I put in the slicer to reduce it? 80%? I got tired head trying to get my head wrapped around this! Thanks!
Last edited by Wingnut; 04-24-2020 at 01:08 AM. Reason: spelling
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04-24-2020, 04:35 AM #2
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87 divided by 167 is 0.52 or fifty-two percent.
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04-24-2020, 05:30 AM #3
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Great! Thank you! There is a lot more HO STLs than N scale.
Wyndell
EDIT: I miss typed N is 160 not 167 so Fred's math would show 54% if I entered it right. My bad and thanks again!Last edited by Wingnut; 04-24-2020 at 05:59 AM. Reason: updated to show correct scale size
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04-24-2020, 06:58 AM #4
just remember that reducing size by half reduces ALL axis by half and gives an item an 1/8th of a size of the original.
Here's a way to visualise this:
The small fidget cube was printed at 50% the size of the larger fidget cube (both with a 0.25mm nozzle).
So it might be best to measure the same item at 1/160 and at 1/87 and work out the actual percentage difference. It's unlikely it would be 8 times smaller - but you never know :-)
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04-24-2020, 08:40 AM #5
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Yum.. well.. it is 1/160 smaller than whatever the real thing is vs 1/87 smaller than the real thing.. they are not 54% smaller than each other, one is 54% smaller than the real thing... I could be wrong but that is how it works in my head.. Not something I know anything about and I never scale an object in the slicer as it never works for things I print. Good lucK!
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04-24-2020, 08:54 AM #6
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100 meters at 1/87 scale is 1.149 meters or 1149 mm
100 meters at 1/160 scale is 0.625 meters or 625 mm
625 mm divided by 1149 mm is 0.54395 or 54.395 percent
Elsewhere on the 'net:
https://www.nmra.org/beginner/scales
Someone wants to convert N to HO, the answer says multiply by 1.84, the reciprocal of 1.84 is 0.54348: https://www.trainorders.com/discussi...d.php?3,437132
If there's any 3D printing going on here, I'd expect that resin based printers will provide best results for detail.
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04-27-2020, 01:45 AM #7
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No wonder I get tired head lol. At 1:167 and 3' away most detail is lost to me anyways lol. thanks again! I used this math today to scale a HO picnic table to N scale. Worked great but printing was a fail because the STL I used had too fine of connections and werent very stable. CA fixed it
Last edited by Wingnut; 04-27-2020 at 01:57 AM.
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