Author Topic: Printing From A Known Object  (Read 1307 times)

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BCR751

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Printing From A Known Object
« on: September 16, 2021, 06:46:04 PM »
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Is it possible to produce a 3D print using a known object?  I know virtually nothing about the process, hence my question.  I have an N-Scale structure (small water tank, just the tank, not the tower) that is really crappy.  I would like to have it re-manufactured into something I can use and 3D printing seems like it would do the trick.  Please let me know if this is possible.  I could supply a photo of the tank if that would help.

Doug

nickelplate759

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Re: Printing From A Known Object
« Reply #1 on: September 16, 2021, 07:24:49 PM »
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Are you talking about scanning an object and turning that into a 3D print?  The answer is yes but it's non-trivial.  At an extreme level, Rapido did a 3D scan of a real GM New Look bus to help design their models.
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I'm sorry Dave, I'm afraid I can't do that.

peteski

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Re: Printing From A Known Object
« Reply #2 on: September 16, 2021, 07:28:10 PM »
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It would be easier, and quicker to just take the original crappy tank's dimensions, and in CAD program design a 3D version similar to the original, then print that.
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BCR751

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Re: Printing From A Known Object
« Reply #3 on: September 16, 2021, 07:51:41 PM »
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It would be easier, and quicker to just take the original crappy tank's dimensions, and in CAD program design a 3D version similar to the original, then print that.

That's kinda what I had in mind.  The tank is only a couple of inches in diameter.  As far as re-designing it in CAD, that's way above my paygrade.  I'd happily send it to someone who is willing, and able, to do both the design work and the printing.

Doug

John

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Re: Printing From A Known Object
« Reply #4 on: September 17, 2021, 02:02:22 PM »
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Post a picture and the dimensions of what this thing looks like please!!

BCR751

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Re: Printing From A Known Object
« Reply #5 on: September 18, 2021, 06:59:16 PM »
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Here are some photos of the N-Scale water tank.  The squares are 1"x1".  It's made of some sort of really soft plastic and it's almost impossible to sand out the imperfections.  I would like to get this 3D printed because it's useless the way it is now.  If anyone would like to take a crack at this, I'll send along the part and you can fly at it.


This a view of the top.  This part comes off the rest of the body, for some reason.  The 3D print should be all one piece.  Notice how out-of-round the body is.


This is the bottom view.


This is the side view.


Please let me know if you're willing to give this a try.

Doug








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Re: Printing From A Known Object
« Reply #6 on: September 19, 2021, 12:40:20 AM »
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That’d be a lot of Resin.
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CNscale

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Re: Printing From A Known Object
« Reply #7 on: September 19, 2021, 08:40:29 AM »
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That’d be a lot of Resin.

You don't have to print it as a solid.

I've been learning Sketchup and I don't think that would be difficult to design (in fact I think I'll give it a try just as a personal challenge). But I don't have a 3D printer, and know there are others here with printers and far more experience than me who would be in a better position to help you out. 

John

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Re: Printing From A Known Object
« Reply #8 on: September 19, 2021, 09:01:47 AM »
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Some quick tinkercad work ..   I couldn't figure out how to add the bracing .. but someone with more skills should be able to do that ..   the 3d file was hollowed  out ..






John

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Re: Printing From A Known Object
« Reply #9 on: September 19, 2021, 09:43:03 AM »
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Ok .. a little more tinkering :)   -- if anyone wants the file ..  here .. https://www.tinkercad.com/things/0ydbCfbLyTh-tank/edit






Sumner

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Re: Printing From A Known Object
« Reply #10 on: September 19, 2021, 12:44:57 PM »
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I took a crack at it also ....



I'm not interested in printing it but if someone is I could put the file up on my thingiverse.com account.  I might like the looks of something looking at the CAD file but usually find I want to tweak it some before I'm happy and that takes more than one print and the time and materials to do that  ;).

Also for CAD software if you are doing much of this I'd really look into downloading Fusion 360.  It is free to use if you are not using it in a commercial application.  I've used SketchUp for some years but find Fusion 360 a lot more powerful and easier to use (after a learning curve) than SketchUp.

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BCR751

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Re: Printing From A Known Object
« Reply #11 on: September 19, 2021, 02:04:42 PM »
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Ok .. a little more tinkering :)   -- if anyone wants the file ..  here .. https://www.tinkercad.com/things/0ydbCfbLyTh-tank/edit






I think you hit it on the head, John.  Here is a photo of the prototype.  I should have included this from the start but I wasn't sure a 3D print could be made from a photo.  The part that I have is a fair representation but John's rendering is spot on.  Maybe a bit "squattyer" in the middle section but I don't want to pick nits.  I sure hope someone is willing to print this.  And yes, the print should be hollow, not solid.
Thanks to both John and Sumner for doing this.


Doug

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Re: Printing From A Known Object
« Reply #12 on: September 19, 2021, 02:11:00 PM »
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Also for CAD software if you are doing much of this I'd really look into downloading Fusion 360.  It is free to use if you are not using it in a commercial application.  I've used SketchUp for some years but find Fusion 360 a lot more powerful and easier to use (after a learning curve) than SketchUp.

Isn't Fusion360 cloud-based though? (Meaning all your drawings belong to them, and can be made inaccessible to you on a whim, à la Photobucket).

John

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Re: Printing From A Known Object
« Reply #13 on: September 19, 2021, 02:38:17 PM »
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I took a crack at it also ....



I'm not interested in printing it but if someone is I could put the file up on my thingiverse.com account.  I might like the looks of something looking at the CAD file but usually find I want to tweak it some before I'm happy and that takes more than one print and the time and materials to do that  ;).

Also for CAD software if you are doing much of this I'd really look into downloading Fusion 360.  It is free to use if you are not using it in a commercial application.  I've used SketchUp for some years but find Fusion 360 a lot more powerful and easier to use (after a learning curve) than SketchUp.

Sumner

That looks really good .. did you do that in fusion?  I've just started to tinker around with it .. It has a definite learning curve

John

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Re: Printing From A Known Object
« Reply #14 on: September 19, 2021, 02:46:28 PM »
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Take a look at this ..  see if this shape is more to your liking?  Is this in HO?


https://www.thingiverse.com/thing:2800974/files

« Last Edit: September 19, 2021, 03:00:14 PM by John »