Hi, I’ve noticed that 3Dhubs volume calculation incorrect, we’ve tested few files the difference are from 35% to 68% lesser then 2 software we are using.
Softwares I’m using for volume calculation are simplyfy3D and 3DPrint by 3Dsystem, both showing the same volume.
Seriously 35 to 68% lesser are quite a lot, and we only tested with a few files.
It does significantly affect the cost.
I’ve sent message to 3Dhubs support but didn’t get any reply from them.
Do some test with different model and see whether you have the same problem, and do you got any solution or feedback from 3Dhubs?
thank you!
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Maybe it has something to do with the infill percentage of the sliced part ?
I use SLA printing method, So in this case there are also sturctures to add the total material cost.
In that case I contact the client, and get this resolved after the automatic quote.
Most client understand. However It would be great that the issue is resolved.
Heya,
What infill percentage are you using on your software? Also, what about supports or a raft? And do you have the models that you are getting an error on? I can take a look and see if there’s something weird with the model.
Alex
hi Alex,
The volume calculation doesn’t affect by the infill, support and raft. It’s purely on the model itself as we are using 3D Print a solfware by 3D system for sandstone printer and simplify3D for FFF printer, both come out same result, I supposed they are calculate base on a solid model.
I’ve also checked the model, they are perfect, they are models uploaded by customers i’m afraid I couldn’t send it to you.
If you are using simplify3D you could try calculate any model you have, then upload the same model to 3Dhubs, see whether the volume are same.
Volume calculation from S3D is exactly the same (± 1%) as the 3D hubs estimation for me.
If your referring to the final quoted cost, as far as I know, the final cost is calculated using a much less volume than the one stated when you upload a file (for FDM printers). I’m guessing due to the fact that FDM prints are printed with infill and are not always solid, and therefore use less material than would be needed for a solid model, if that makes sense…
Try this, upload a file to 3dhubs, hover over the ‘i’ next where it states the part volume. It will say “For FDM printers the required material will be around blah blah” this will be much less (up to 60% like you said) than the actual volume, and THIS is the value that is used to calculate the cost, (multiply it by your material cost per cm^3 and add your startup cost).
And if you need to print the part solid and with additional material - supports etc, you can add an ‘extra material’ cost on the order page 
