Author Topic: 3D Printers  (Read 20668 times)

Offline Frank3k

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Re: 3D Printers
« Reply #50 on: June 22, 2015, 12:04:26 AM »
Ok I don't think this is it as it wasn't present when I received the items and only appeared about a month later, almost like a white mould or similar.

The natural color of the material can be white, in part due to the printing process (it will have a yellowish tint if you polish a part until it's transparent) The white sections are probably areas where the oil has been completely removed or evaporated. Don't worry about it. If the surface doesn't feel oily after cleaning, it's good to go. I always prime the material (Mr. Surfacer works great) and never had an issue.

Offline Volkodav

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Re: 3D Printers
« Reply #51 on: June 22, 2015, 12:39:31 AM »
What I am referring to is a thick as in a couple of millimetres thick waxy feeling powdery build up over the parts, like an oxide coating, or like I said earlier a mould, i.e. the furry white mould that grows on food.  Smaller parts are virtually unrecognisable under this coating.

Offline Frank3k

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Re: 3D Printers
« Reply #52 on: June 22, 2015, 01:45:26 AM »
What I am referring to is a thick as in a couple of millimetres thick waxy feeling powdery build up over the parts, like an oxide coating, or like I said earlier a mould, i.e. the furry white mould that grows on food.  Smaller parts are virtually unrecognisable under this coating.

It may be residue support wax mixed with oil. It should go away after cleaning. There's nothing to leech out of the material, since it isn't a two part resin so residue is either wax, oil or a combination of the two.

If the part doesn't have delicate structures, you can try an old toothbrush to remove the excess, either in lukewarm water with a little soap or with a few drops of IPA.

Offline LemonJello

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Re: 3D Printers
« Reply #53 on: June 22, 2015, 02:28:09 AM »
We (my workplace) recently took delivery of a MakerBot Z18 and it's associated Digitizer...guess who's got the manuals in his office right now?  This coming week I plan to get it all set up and calibrated, then run a couple of "test" prints, all in the name of science, of course.

Offline Volkodav

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Re: 3D Printers
« Reply #54 on: June 22, 2015, 11:49:16 AM »
I had a 3D printer in my place of work for rapid prototyping back in 2003, manager was a tool though so none of us got to do any foreignies on it.  At least I had my own work shop purely for fabricating test jigs and widgets etc.  ;)

Offline LemonJello

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Re: 3D Printers
« Reply #55 on: July 03, 2015, 07:40:13 AM »
I've been playing with our new MakerBot, trying out the different settings and seeing what can/can't be printed.  It's been a definite learning experience, and there's still a lot more to learn before I'd classify myself as more than a novice with this.

Here she is:


Here's what I've printed (other than some of the pre-loaded test files):


The near left is approx 1/48 scale, but the file had some errors so it didn't turn out quite right, the big one in back is approx 1/35 scale and something of an accident.  I had corrected the original file and must have scaled up from my desired 1/48 measurements.  Took about 9 hours to print.  The near right is the last one printed, back at 1/48 scale and there are still some areas that didn't come out right, I think a little putty, paint and sanding will give me a usable zodiac rubber boat.

I've downloaded a bunch of files from SketchUp, converted them to .stl format, then corrected for any issues before loading into the Makerbot software.  We'll see how they turn out. 

Offline Jeffry Fontaine

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Re: 3D Printers
« Reply #56 on: July 03, 2015, 07:58:47 AM »
Well you have to start somewhere.  At least you did not have to purchase the thing ;)

Once you get some more experience with this I am confident you will be pumping (printing) out some really nice models. 
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Offline LemonJello

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Re: 3D Printers
« Reply #57 on: July 03, 2015, 08:41:13 AM »
I figured the zodiac was a good "cover" project since our Maritime Archeologist is going to be one of the main users of the printer. 

Offline LemonJello

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Re: 3D Printers
« Reply #58 on: July 10, 2015, 09:24:55 AM »
OK, a few more test files run and here are the results:



These are 1/35 off road tires/wheels (I slightly scaled down HUMVEE tires to better fit on an M151 Jeep project I have in mind - the tread detail is ok, but the hub detail is non-existent.  I tried to go with Higher resolution settings, but the printer didn't like the file on those settings and aborted - so I went standard and got these - they're probably usable with some work.  Above the tires are Javelin (FGM-148) launchers - again I think they can be used, but the fine details on the controllers will need to be added as the standard settings just couldn't pull it off.  Alternatively, I can separate the tubes and use them as reloads in the back of a vehicle. 



Here we have a pair of AGM-129 Advanced Cruise Missiles - the tail fins and engine intakes have some errors, but they can be fixed and I'll be giving them a reprint in the near future.  Again, standard  settings on the printer, but I may give them a try on high and see what turns up.  If it turns out better - well then I have a master to try and cast a B-1's load in resin.


Offline Jeffry Fontaine

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Re: 3D Printers
« Reply #59 on: July 10, 2015, 11:58:12 AM »
The AGM-129 looks promising as do the Javelin missiles.  Looking forward to seeing these items getting fine-tuned. 
"Every day we hear about new studies 'revealing' what should have been obvious to sentient beings for generations; 'Research shows wolverines don't like to be teased" -- Jonah Goldberg

Offline GTX_Admin

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Re: 3D Printers
« Reply #60 on: July 11, 2015, 03:50:20 AM »
Very interested in acquiring some 1/48 AGM-129s if you are interested in selling them.
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Offline Weaver

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Re: 3D Printers
« Reply #61 on: July 15, 2015, 06:02:12 PM »
Just got an e-mail from Staples (UK stationery supplier): they're selling plug'n'play 3D printers in their high street shops now. £1500 for the base model, £2000 for the better one. No idea how the specs compare to other printers. This is the product page:

http://www.staples.co.uk/lists/nonbrowseskusset?SkusetId=19591&cm_mmc=150715_COR_PRO_UK3_3_E15_07_015_09UK&RegID=-100000&RegID1=-100000&RegID2=0
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Offline jcf

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Re: 3D Printers
« Reply #62 on: July 16, 2015, 01:47:32 AM »
Staples (actually a US based company BTW) is also selling 3D printers through their US stores:
http://www.staples.com/3D-Printers/cat_CL211598
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Offline Weaver

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Re: 3D Printers
« Reply #63 on: July 17, 2015, 12:42:47 AM »
Staples (actually a US based company BTW) is also selling 3D printers through their US stores:
http://www.staples.com/3D-Printers/cat_CL211598


Didn't know they were a US company: cheers.
"I have described nothing but what I saw myself, or learned from others" - Thucydides

"I've jazzed mine up a bit" - Spike Milligan

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Offline LemonJello

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Re: 3D Printers
« Reply #64 on: July 25, 2015, 07:47:48 AM »
Very interested in acquiring some 1/48 AGM-129s if you are interested in selling them.


When I get the file refined, I'd be happy to send you a couple.

Here's my latest production:


I've been playing with this as a possible V-44/QTR nacelle.  I think I may have gone a little too big with this, though. 

Offline GTX_Admin

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Re: 3D Printers
« Reply #65 on: July 26, 2015, 03:18:33 AM »
Can anyone say "V-22 engine upgrade!"? ;)
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Offline LemonJello

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Re: 3D Printers
« Reply #66 on: July 29, 2015, 09:01:29 AM »
Another start to the work week, another couple 3D printing projects:

Pelican cases:


Barrels, pallets and stokes litters:


Pallet close up:


Litter and barrels:


I have a SAR-type rescue basket file, but the printer doesn't like it right now.  Also working through a couple of inflatable life raft containers during my lunch.

Offline LemonJello

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Re: 3D Printers
« Reply #67 on: September 13, 2015, 04:45:18 AM »
Here's a couple of quick and dirty missile containers I whipped up.  I have intentions of using one of my Trumpeter LAV-25's to make an ADATS type vehicle.




Offline Volkodav

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Re: 3D Printers
« Reply #68 on: September 14, 2015, 06:37:30 PM »
Looking really good and making buying a printer more and more tempting.  The Dremel 3d printer will apparently be available in local hardware stores soon.

Offline 3dtech

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Re: 3D Printers
« Reply #69 on: September 22, 2015, 07:19:45 PM »
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