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Filament Usage Gauges

by pandelume, published

Filament Usage Gauges by pandelume Feb 17, 2010

Description

These are simple gauges for determining approximately how much filament is needed for a given object. An object of a given cubic size would require the stated length of filament. Assuming I did my math right, we have:

1/8" filament, 1mm shell, 30% infill
.5" cube = .5ft
1" cube = 3ft
2" cube = 20.6ft
3" cube = 64.8ft

and

3mm filament, 1mm shell, 30% infill
12.5mm cube = .16m
25mm cube = 1m
50mm cube = 6.73m
75mm cube = 21.16m

Since ABS has a density of about 0.037 lbs/cubic inch, 5lbs works out to about 917 linear feet of 1/8" filament (seems like a lot to me - can someone with a printer confirm?). So you can use this to keep track of how much you've used. You could also use a cheap scale, but you can't print one...yet.

Edited to add: Not sure why the renders are showing mirrored text. My original files are fine, but I've uploaded mirrored files just in case.

Edited to add: Per Bophoto's suggestion, I've recalculated these for a 1mm solid shell and 30% filled interior volume and replaced the files.

Recent Comments

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Maybe it would make sense to re-calculate the guage to reflect 30% infill and a solid shell. it would be a practical little thing in the pocket to know roughly what one is looking at before starting a project.

Well, color me embarrassed - I didn't consider the amount of infill at all. Regarding your other points, b) the other purpose I had in mind was an estimation guide for determining how much material you'd need to make a copy of an existing object, for which a cube seemed as good a place as any to start, and c) I don't have a printer yet, so I haven't have an occasion to use skeinforge, but that would make this less useful than I had imagined. It might still be useful when estimating material needed to make a copy.

So yeah, maybe not really useful in the way I had first imagined.

I don
´t understand your reasoning here.
a) No object is filled 100%. Usually you have 2 shells and 20-40% hexagonal infill. Seldomly 80% infill for heavy duty.
b) It would only work on roughly cube shaped objects. Most objects have complex shapes.
c) Skeinforge tells you exactly how much filament is use
d already and Netfabb tells you the exact wolume of your piece.

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License

All Rights Reserved
Filament Usage Gauges by pandelume is licensed under the All Rights Reserved license.

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Instructions

1) Print (should be ok, but I don't yet have a printer, so I haven't tested it)
2) Use
3) Gloat if necessary

Comments

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Bophoto on Feb 18, 2010 said:

Maybe it would make sense to re-calculate the guage to reflect 30% infill and a solid shell. it would be a practical little thing in the pocket to know roughly what one is looking at before starting a project.

MarcusWolschon on Feb 18, 2010 said:

I don
´t understand your reasoning here.
a) No object is filled 100%. Usually you have 2 shells and 20-40% hexagonal infill. Seldomly 80% infill for heavy duty.
b) It would only work on roughly cube shaped objects. Most objects have complex shapes.
c) Skeinforge tells you exactly how much filament is use
d already and Netfabb tells you the exact wolume of your piece.

pandelume on Feb 18, 2010 said:

Well, color me embarrassed - I didn't consider the amount of infill at all. Regarding your other points, b) the other purpose I had in mind was an estimation guide for determining how much material you'd need to make a copy of an existing object, for which a cube seemed as good a place as any to start, and c) I don't have a printer yet, so I haven't have an occasion to use skeinforge, but that would make this less useful than I had imagined. It might still be useful when estimating material needed to make a copy.

So yeah, maybe not really useful in the way I had first imagined.

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