Author Topic: Refrigerator art (Read 2422 times)

intoodeep · « **Reply #30 on:** November 29, 2011, 04:38:59 PM »

Quote from: Double D on November 29, 2011, 03:48:51 PM

The instructor liked it so well she said we could print it out on the 3d printer!

Oh, like an FDM or SLS type of printer? If, so that will be fun for you..... Keep up the good work!

Double D · « **Reply #31 on:** November 29, 2011, 04:49:29 PM »

Quote from: intoodeep on November 29, 2011, 04:38:59 PM

Oh, like an FDM or SLS type of printer? If, so that will be fun for you..... Keep up the good work!

Don't really know as 3d printing is not really part of this introductory course...actually the drawing I made is beyond the introductory level skills and the instructor gave a me a lot help...a real lot of help. She seems to a be a good instructor. If you need help and ask for it you will get it. If you don't ask...she'll make it clear she's there to help, but you have ask.

The printer is a Dimension 3D printer and prints in ABS plastic...so must be FDM

intoodeep · « **Reply #32 on:** November 29, 2011, 05:06:43 PM »

DD,

I'm sure you are correct with the FDM. But, either way, FDM or SLS. Once, it's done and you see the process then, I think you will be addicted.....

jamesfrom180 · « **Reply #33 on:** November 30, 2011, 03:03:25 AM »

I had the chance to see the prototyping process forget which it was since it was another groups I was stuck over in the chemical engineer group not the mechanical.

It is very addicting. I think that will be a tad difficult to put up on the fridge but please take lots of photos.

Cat Whisperer · « **Reply #34 on:** November 30, 2011, 02:20:44 PM »

don't forget to 'print' the cannon balls (hollow of course) on the 3d printer.

Double D · « **Reply #35 on:** December 01, 2011, 09:04:30 AM »

Quote from: intoodeep on November 29, 2011, 05:06:43 PM

DD,

I'm sure you are correct with the FDM. But, either way, FDM or SLS. Once, it's done and you see the process then, I think you will be addicted.....

It is SLS and is printing now, print time 10 hours 38 minutes.

jamesfrom180 · « **Reply #36 on:** December 01, 2011, 10:47:45 AM »

Oh this will be cool!!!

Here at the University in Gainesville they showed me a process for rapid prototyping using CADD, 3D printing, and sintered powders. Basically you printed the part using some basic binder I think corn starch and then you baked it and sintered and what was left was basically a usable part with limited life span. The real claim to fame was making a basic clock work set of gears that would work without ever having to be assembled.

Cat Whisperer · « **Reply #37 on:** December 01, 2011, 01:20:06 PM »

We've come a LONG way since these processes first came out. I was teaching cad when we got to see one of the photopolymer - UV systems ($1million each and less than 10 in the nation). They're down to where MANY companies have something in-house for developmental work - and pay for themselves quickly.

Double D · « **Reply #38 on:** December 05, 2011, 01:29:21 PM »

Well its done almost. Right now its in the acid bath getting the matrix removed.

Here is the project.

Here is the 3D printer.

The machine lays down a matrix to hold the 3D object.

This is how far the project was last Thursday when I left for the day...the instructor had her head in the machine mumbling to herself as there was some sort of jam. She was cutting and pulling these long strands out of the machine. This is the printing media. I couldn't understand what she was saying, but I did get the impression, she didn't need my help.

When I came in this morning this is what we had.

Into the acid bath to clean the matrix off.

Tim I mentioned your comment about making the round ball for the mortar to the instructor this morning, and she just rolled her eyes. Besides, I am sure you would not be happy unless I drew a 3d golf ball with all those dimples!!!!!

Cat Whisperer · « **Reply #39 on:** December 05, 2011, 01:46:09 PM »

Excellent!

I'd not thought of putting any dimples on the sphere - just to do a hollow sphere with the tapered fuse hole.

There are many companies that do contract prototyping using these types of 3d "printers". MIGHT be a viable method of making a pattern for casting.

On future models you can reduce the effect of the flat surfaces by increasing the number of segments in the rendering of the 3d model - two or three times as many would give you a smoother surface.

Are you going to sand it smooth, or will it remain as a "here's what I did in class" piece of memorabelia?

Double D · « **Reply #40 on:** December 05, 2011, 02:10:10 PM »

This project was way beyond the scope of the introduction 3d. We didn't get into things like segments in the wire frame...We also didn't get into stress risers and such.

It will remain as is.

I am going to ask for help in segmenting the drawing for dimensioning...

Cat Whisperer · « **Reply #41 on:** December 05, 2011, 02:24:58 PM »

2d from 3d - for dimensioning - can easily be done.

Sequence will be to move (or create a new) XY plane that goes through the object - where the surfaces intersect the plane becomes a line on the drawing - do that in a layer by itself and you create very quickly (if you've done it before) a whole set of 2d drawings - which can then be dimensioned. This will make sense after you've done it.

GGaskill · « **Reply #42 on:** December 06, 2011, 12:58:40 PM »

So will the golf ball go/no go gauge fit all the way down?

Double D · « **Reply #43 on:** December 06, 2011, 02:44:37 PM »

Quote from: GGaskill on December 06, 2011, 12:58:40 PM

So will the golf ball go/no go gauge fit all the way down?

Golf ball? This is a university campus, you can't have dangerous objects like golf balls on campus. Good one George!!!

GGaskill · « **Reply #44 on:** December 06, 2011, 02:49:38 PM »

I suppose you could substitute one of those Chinese fox balls in the name of diversity.

Double D · « **Reply #45 on:** December 06, 2011, 03:23:14 PM »

Quote from: GGaskill on December 06, 2011, 02:49:38 PM

I suppose you could substitute one of those Chinese fox balls in the name of diversity.

ROFLMAO
George, you are in rare from to night!

1Southpaw · « **Reply #46 on:** December 06, 2011, 04:34:36 PM »

When do we vent it and try it ?

In the name of research of course.

Could use a whiffle ball as ammo .

Cat Whisperer · « **Reply #47 on:** December 07, 2011, 12:33:41 AM »

Quote from: 1Southpaw on December 06, 2011, 04:34:36 PM

When do we vent it and try it ?

In the name of research of course.

Could use a whiffle ball as ammo .

Did they make the 3d Printed 3Fg or 2Fg Powder to use with it?

Double D · « **Reply #48 on:** December 07, 2011, 12:40:54 PM »

Quote from: Cat Whisperer on December 07, 2011, 12:33:41 AM

Did they make the 3d Printed 3Fg or 2Fg Powder to use with it?

We can't do that , why that would be "plastic explosives"....giggle giggle, snicker snicker.

Cat Whisperer · « **Reply #49 on:** December 07, 2011, 12:44:19 PM »

Double D · « **Reply #50 on:** December 10, 2011, 08:12:53 AM »

George, it passed golf ball...

GGaskill · « **Reply #51 on:** December 10, 2011, 08:41:57 AM »

Now, if you attached a quick disconnect air fitting, you could launch golf balls.

phsarge · « **Reply #52 on:** December 10, 2011, 11:47:55 AM »

Hey Double D
The company that makes those printers also make a replacement material for it that will actuall produce a mold that can be used. From what I have seen it makes an inch or two thick green sand mold that you would then put into a regular sand mold and pour. It is kind of neat that it can be done without a pattern.
PHsarge