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by b26354
Tue Mar 17, 2015 3:59 pm
Forum: 3D Printing
Topic: Carbon3D
Replies: 20
Views: 5378

Re: Carbon3D

It looks like their transparent window is oxygen permeable which inhibits the cure. The sylgard needs to be wiped clean every layer to absorb oxygen from the top - theirs gets oxygen through the bottom so you can print continuously without the vat slide movement. If the same sort of oxygen permeable...
by b26354
Sun Mar 09, 2014 1:20 pm
Forum: Photo Gallery
Topic: some 3d printed guns
Replies: 4
Views: 2143

some 3d printed guns

They're for a Revell 1/72 "Pirate Ship" kit - since you have to build and install 18 cannons for the lower gun deck before continuing with the rest of the assembly - I figured it was easier to print them fully assembled rather than fiddling with the kit ones (my eyes and fingers aren't as good at ma...
by b26354
Sat Mar 08, 2014 4:41 pm
Forum: Photo Gallery
Topic: some 3d printed guns
Replies: 4
Views: 2143

some 3d printed guns

1/72 scale 12 pound cannons - they're about 1" long http://www.b26354.co.nz/cannons.jpg printed with a 50/50 mix of B9 red and MJ sub-g with 1.75 second exposure with a 0.75 second edge overcure - MJ is very fast. I can get 6 printed at a time at 50x50micron resolution in 90 minutes. Don't tell the ...
by b26354
Tue Oct 22, 2013 11:10 am
Forum: 3D Printing
Topic: Spot-e(lastic) resin with B9C
Replies: 9
Views: 2848

Spot-e(lastic) resin with B9C

Excellent info - I've been wanting to try black tinted spot-e for printing model tyres and tank tracks. I'll have to order some.
by b26354
Mon Sep 23, 2013 5:57 pm
Forum: General Discussion
Topic: Wondering if H2O2 would mix or degrade Resin?
Replies: 4
Views: 1506

Wondering if H2O2 would mix or degrade Resin?

I think he's talking about floating the resin on a layer fo H2O2 (like the peachy printer) rather than using PDMS. Peroxide is used as an initiator for polymerisation of methacrylate resins- so that's probably going to cure the resin instantly rather than create an imiscible layer. I think distilled...
by b26354
Sun Sep 22, 2013 8:42 am
Forum: Links
Topic: New approach to 3d printers on crowd funding
Replies: 26
Views: 4744

New approach to 3d printers on crowd funding

That's really cool - I think the B9 would still be more accurate - but it's really going to give the form1 a run for it's money.
by b26354
Wed Sep 18, 2013 1:34 pm
Forum: Tips & Tricks
Topic: not that perfect
Replies: 4
Views: 1225

not that perfect

I've never had a failed print with HT and really short exposures. Are you sure your b9j file is valid with no missing slices?

How are you generating your supports?
by b26354
Sun Sep 15, 2013 5:27 pm
Forum: 3D Printing
Topic: 3D Model Repair Software
Replies: 39
Views: 5979

3D Model Repair Software

Quote from madmartian on September 15, 2013, 12:09 Well, I was able to get it to slice! It's not printable, but at least it slices. :) Have you tried slicing in netfabb and seeing if it looks OK in there? I believe you can even export the slices back to a mesh which might slice better in B9.
by b26354
Sat Sep 14, 2013 5:14 pm
Forum: General Discussion
Topic: B9 .stl for printing?
Replies: 6
Views: 1502

B9 .stl for printing?

see if you can download this - I think anyone can download a file from dropbox.

https://www.dropbox.com/sh/qmdbip1mw6srcn0/xX6lroN9E3

It'll need some cleanup to be printable and the walls will need to be thickend up since everything is to scale.
by b26354
Sat Sep 14, 2013 4:32 pm
Forum: B9R-1-Cherry
Topic: Nothing was curing
Replies: 17
Views: 3342

Nothing was curing

Quote from rezaamir1348 on September 13, 2013, 11:12 Hi, I did assemble my B9 creator , set every things perfectly , all works good, calibration is good too and (100 microns ) . 1- I use cherry resin with normal setting ( No changes ) 80 microns and nothing was cured ??????????? ( You need to slice...
by b26354
Mon Sep 02, 2013 10:08 pm
Forum: Photo Gallery
Topic: My first print (using MakerJuice resin)
Replies: 29
Views: 5991

My first print (using MakerJuice resin)

Quote from Robert Howle on September 3, 2013, 00:27
Are u casting your models.


no - that was kind of my point - I don't need castable resin so spot-HT and MJR are better alternatives for me.
by b26354
Mon Sep 02, 2013 10:18 am
Forum: Photo Gallery
Topic: My first print (using MakerJuice resin)
Replies: 29
Views: 5991

My first print (using MakerJuice resin)

from my point of view - as a modelmaker, not a jeweller, if you want "castable" use B9-red or B9-cherry. For those of us who want lightning fast prints with no shrink, no stickyness after printing, easy cleanup and no requirement to post cure - we're looking for other options. The best "resin" I've ...
by b26354
Wed Aug 28, 2013 6:41 pm
Forum: Photo Gallery
Topic: My first print (using MakerJuice resin)
Replies: 29
Views: 5991

My first print (using MakerJuice resin)

Cool - glad you got B9 machine to use and 6 seconds at 100x100x100 is really fast :)

50 XY would probably need less than 1.5 seconds per layer.
by b26354
Wed Aug 28, 2013 4:16 pm
Forum: Troubleshooting
Topic: Vatastrophe... and Redemption!
Replies: 5
Views: 1428

Vatastrophe... and Redemption!

The weird thing is - I just had exactly the same thing happen to my v1.1 vat - the resin that got under the PDMS seemed to stick and haze the acrylic. And I can see evidence of crazing on the edges. But my v1.0 vat, and the spare vats I've cut on my laser cutter, are all fine and have been in consta...
by b26354
Tue Aug 27, 2013 3:50 pm
Forum: Operation
Topic: mystery b9 creator
Replies: 4
Views: 1362

mystery b9 creator

Either your build table isn't zeroed correctly - which should result in a lot of unattached slices floating around in the vat - or your exposure times are way too short? How are you zeroing the build table? What XY resolution and slice thickness are you printing? What resin (B9-red, B9-cherry) and w...
by b26354
Sun Aug 25, 2013 11:12 am
Forum: General Discussion
Topic: Yikes! Gluing vats is harder than I thought!!
Replies: 7
Views: 1506

Yikes! Gluing vats is harder than I thought!!

I use evonik acrifix 192 - it's a 1 part acrylic cement that comes in a tube. I can air dry or be accelerated with UV Quite viscous and gap filling and easy to apply straight from the tube like this:

http://www.youtube.com/watch?v=bYxcc8ci1Yw
by b26354
Tue Aug 20, 2013 10:11 am
Forum: Operation
Topic: I cant get my B9 to connect to my computer
Replies: 18
Views: 2951

I cant get my B9 to connect to my computer

And - what type of computer?? Win, OSX or Linux?
by b26354
Mon Aug 19, 2013 10:02 am
Forum: Installation
Topic: ubuntu 12.04 wont apply resolution
Replies: 3
Views: 1702

ubuntu 12.04 wont apply resolution

Looks like it's a common issue - googling "requested position/size for CRTC 148" shows many results related to mutiple displays and if your machine has an ATI card you need to use the catalyst control panel: http://ubuntuforums.org/showthread.php?t=2012025 http://askubuntu.com/questions/151763/doubl...
by b26354
Fri Aug 16, 2013 11:10 am
Forum: Photo Gallery
Topic: First Grow w/ problems
Replies: 19
Views: 3175

First Grow w/ problems

Question - your picture has the x slide removed - is it installed when you're testing? If not then it won't be able to figure out where it is since the end of the slide activates the optical switch on the right side of the machine.
by b26354
Thu Aug 15, 2013 4:32 pm
Forum: General
Topic: Spot-HT material and vulcanization
Replies: 11
Views: 3043

Spot-HT material and vulcanization

I can't help with the vulcanisation issue - but I can tell you that spot-HT makes extremely sharp prints with no residual stickyness after a rinse with alcohol. The cured resin is as tough any 2 part urethane resin I've used so I don't think the pressure of moulding will be an issue. What temperatur...

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