Looking for someone to create a 3D model

Choaski

Choaski

Choaski

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Joined
17 Jan 2012
Posts
216
So basically, I'm looking for a mold to be created so I can take it to a local printer and it can be printed for me in 3D.

It's basically a large Worm Gear that I'm looking for. If anyone would help me that would be great, can always push something your way for the time.
 
By mold you mean design :) What's it for?

Do you have specifications written down or it is all in your head?
 
D3K said:
By mold you mean design :) What's it for?

Do you have specifications written down or it is all in your head?
Click to expand...

I have somewhat of an idea in my head, it's to bend PETG into a helix so my watercooling looks dope :O!

EDIT: It's for sure not mold, but it will be a base to bend tubing around
 
What format does the file need to be in? I'm sure I could knock something up in Inventor, provided it allows me to export to the correct format. I'd also need exact sizes.
 
Illgresi said:
What format does the file need to be in? I'm sure I could knock something up in Inventor, provided it allows me to export to the correct format. I'd also need exact sizes.
Click to expand...

Would have to be some guess work in but I'm pretty sure I could get it close enough to what I want. Would need to be STL (So I can take it directly to 3D printers and they can print)
 
Looks like Inventor can save directly as an *.stl

If I understand you correctly, you want a cylinder with a semicircular groove running helically along the length of it?

In that case you'd need to provide the following dimensions:

Main Diameter - Or how tightly wound you want the tubing to be
Semicircular diameter - The diameter of the tubing
Length - How long you want the part to be
Turns per unit length - How closely packed you want the coil
 
Illgresi said:
Looks like Inventor can save directly as an *.stl

If I understand you correctly, you want a cylinder with a semicircular groove running helically along the length of it?

In that case you'd need to provide the following dimensions:

Main Diameter - Or how tightly wound you want the tubing to be
Semicircular diameter - The diameter of the tubing
Length - How long you want the part to be
Turns per unit length - How closely packed you want the coil
Click to expand...

D3K's picture is perfect! Should be more then enough to work with, as for dimensions... Here is a mock picture which I think would work well being applied to that picture. Unsure if D3K designed that himself.

http://imgur.com/a/0DI6Z

The extra .1mm is to account for any inconsistencies with the tubing, just incase.

The depth of 6mm is so it can fully support half the tubing, the rest should stay supported.



D3K said:
http://a360.co/2d3SJuq
Click to expand...

That's pretty much perfect! Unsure if you made that but it's almost perfect for me (I'd personally no use the full lenght as I have a Midi Tower but can do cool things for other people!)


EDIT: The only addition I could think of would be to add in a hole or two more, especially one at the top at some point, just to allow the base to be solid and not bend a tube backwards effectively
 
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I wasn't sure how the bottom two holes/spirals connected to the rest, but it's dawned on me they aren't spirals, but partial level loops. Idk how the main spiral terminates in the middle of the body.

But w/e you sound happy enough with it as is. If you want me to adjust it with the dims you specified I can. You're gonna chew up a lot of plastic with it solid though, so how thick do you want it? I have no clue about the strength of 3d printed models, nor how much force you'll need to wind the tube round. It could buckle during the process. You might wanna fill it with sand to prevent that.

That 0.1mm will be best placed as a fillet around the spiral.
 
I'm not to bothered with the bottom, it's clear there is no illustration from the picture to get it right, as long as there is an initial hole to start the spiral off, that's good enough for me. The bottom would have just been cool to add in as I'm sure they are there for some reason. Defo happy with that view though!

The dims I put in are just the width of the tubing +1mm, guessing the rest but I think they are quite accurate, what did you use in your design? If that can fit in 12mm hardline, I'm happy with that, if it can fit 16 + 12mm, more then what I asked for, that's amazing! (I assume 12mm would fit nicely as it's all curved). As far as 3D printing goes, don't know all that much about it, I feel the thicker plastic will help it retain shape from any heat that may apply over, unsure though, what do you think? Some of the heating will prob be done whilst in the design, otherwise it would be a lot of tubing having to heat and would cool before being able to wrap it all.

What do you mean a fillet around the spiral ?
 
I dunno what you mean by 16 + 12?

I exported to stl with defaults and got this http://a360.co/2diYKWX Ha.

Setting to a higher res http://a360.co/2diYxmN

A fillet is where you round edges to remove sharpness.... which I forgot to do...

edit: http://a360.co/2dIIsow Interestingly the fillet doubled the filesize. Makes sense when stl use meshes rather than vector geometry.

For some reason the stl has flipped the Z axis. There's a hole in the bottom for filling with something.

FYI its 43k mm^3 or 0.043302 litres, at 2mm thick. Can make it thicker.
 
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D3K said:
I dunno what you mean by 16 + 12?

I exported to stl with defaults and got this http://a360.co/2diYKWX Ha.

Setting to a higher res http://a360.co/2diYxmN

A fillet is where you round edges to remove sharpness.... which I forgot to do...
Click to expand...

To allow it to support 16mm + 12mm hardline tubing, I only use 12mm, just one of them things that would be cool.

That export is just full of style points :D. The fillet thing sounds good now I know what it is...




EDIT: With your experiance, do you think that it would be thick enough to deal with any heat that is applied (Short burst's incase I'm heating tubing whilst attached to the design)
 
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Are you asking for the tube path diameter to be 16mm or 12? It's at 12 now. If it's set at 16 then it won't guide 12 as well but it will work. The inverse is impossible i.e. winding 16 through a 12mm hole...

I did edit my last post but in case you missed it
http://a360.co/2dIIsow
 
Yeah, I think we edited our posts at the same time, it confused me at first. I feel like I'm asking too much now to be honest but, if I was to be picky....

Two models, one designed for 16mm and one designed for 12mm as it's impossible to incorporate into one.

3mm thick just to add to the heat resistance as I think that PETG and the materials used for 3D printing will be similar thermal resistance.

A 25% reduction in the spaces between where the tubing sits, no idea what to call that part...
 
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