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by Arno-Millenaar
Wed Oct 28, 2015 8:59 am
Forum: Operation
Topic: projector does not turn on and off
Replies: 27
Views: 4481

Re: projector does not turn on and off

Just fixed a similar problem. After giving the program administrator rights, the problem was solved. BTW: running W8.1 EDIT: no this does not seem to be the solution. Had the same problem today. Changed USB port, power on / off, etc. Ultimately switched on the projector, using the control-buttons on...
by Arno-Millenaar
Mon Apr 06, 2015 2:58 pm
Forum: Operation
Topic: Trouble adjusting projector at 30 micron
Replies: 18
Views: 5379

Re: Trouble adjusting projector at 30 micron

It has been posted some time ago, however i use a simple USB micro-scoop for getting the focus dead-right on 30um. See post thread fyi:
http://b9creator.com/forum/viewtopic.php?f=19&t=1988

Rgds, Arno
by Arno-Millenaar
Fri Mar 13, 2015 3:30 am
Forum: 3D Printing
Topic: Sample needed Europe (maybe Holland,belgium,germany)
Replies: 4
Views: 1188

Re: Sample needed Europe (maybe Holland,belgium,germany)

Hi Tony,

received your PM, however not able to find it back in my inbox. Understand you are based on Oss and so are we. I will send you a PM with my mobile number and email.

Rgds,

Arno
by Arno-Millenaar
Tue Nov 18, 2014 8:46 am
Forum: 3D Printing
Topic: image spoilt for microchannel printing
Replies: 29
Views: 4595

image spoilt for microchannel printing

Quote from Suijin on November 18, 2014, 11:58 So a dumb question: What do you get by using the B9 to make the molds versus just making them the traditional way with SU8? You get much higher resolution, better walls, etc. I know you get rid of the need for photolithography equipment, but FYI a clien...
by Arno-Millenaar
Tue Nov 18, 2014 4:04 am
Forum: 3D Printing
Topic: image spoilt for microchannel printing
Replies: 29
Views: 4595

image spoilt for microchannel printing

@PS We are also using the B9C v1.2 'on the edge' while printing 'walls' (not channels) with a width of 90um to 100um. There are a number of 'issues' that need to be solved by a somewhat different approach when using SLA (resin) print technology. 1) Its not as much the Z-bleeding that causes problems...
by Arno-Millenaar
Tue Nov 11, 2014 10:30 am
Forum: Tips & Tricks
Topic: X Flow and the influence on resolution
Replies: 13
Views: 2277

X Flow and the influence on resolution

Quote from Robert Howle on November 11, 2014, 17:21 Tim can't coat the vat glass for u but if u send it to him or myself we will get it done for you. I will contact the developer and u can speak to him yourself about recoating if he will allow that. From my discussions with him the prints are bette...
by Arno-Millenaar
Tue Nov 11, 2014 10:28 am
Forum: Tips & Tricks
Topic: X Flow and the influence on resolution
Replies: 13
Views: 2277

X Flow and the influence on resolution

Quote from mikej on November 11, 2014, 16:36 120 microns diameter, crazy! :) That's just 4 x 4 pixels? BTW Mike, this is a question I have had on my mind for some time : Is there a way to align the design in the layout process on the grid of the DLP pixels. I have no problems making sure my dimensi...
by Arno-Millenaar
Tue Nov 11, 2014 10:06 am
Forum: Tips & Tricks
Topic: X Flow and the influence on resolution
Replies: 13
Views: 2277

X Flow and the influence on resolution

Quote from mikej on November 11, 2014, 16:36 120 microns diameter, crazy! :) That's just 4 x 4 pixels? Yes indeed, and that's why this is becoming the limit for what is possible with the current definition of Full-HD. Can't wait till the 4K projectors become available for a reasonable price. Howeve...
by Arno-Millenaar
Tue Nov 11, 2014 9:30 am
Forum: Tips & Tricks
Topic: X Flow and the influence on resolution
Replies: 13
Views: 2277

X Flow and the influence on resolution

Quote from Robert Howle on November 11, 2014, 16:11 You might try longer settle times to allow the resin to come to rest. I get much better results on small features doing this. Another factor to consider is the minimum "over cure" time for subsequent layers and still getting a "good" print. This h...
by Arno-Millenaar
Tue Nov 11, 2014 8:39 am
Forum: Tips & Tricks
Topic: X Flow and the influence on resolution
Replies: 13
Views: 2277

X Flow and the influence on resolution

wanted to share an observation when printing very small objects and features such as channels in the sub 100 to 300um width. When placing objects during the layout phase, keep in mind that the movement of X-plate (vat) will have an impact on 'micro-features'. Of course in addition the viscosity of t...
by Arno-Millenaar
Tue Nov 11, 2014 6:03 am
Forum: General
Topic: Sylgard 184 availability & replacements
Replies: 115
Views: 35799

Sylgard 184 availability & replacements

Quote from Centaur on November 11, 2014, 12:39 Quote from akgold on November 10, 2014, 14:48 oh I forgot to mention I have removed the wiper as well. There is no need for it. Whilst I understand that coating doesn't need oxygenating, like PDMS, isn't a good idea to retain the sweeper to clear any l...
by Arno-Millenaar
Mon Nov 10, 2014 9:46 pm
Forum: General
Topic: Sylgard 184 availability & replacements
Replies: 115
Views: 35799

Sylgard 184 availability & replacements

I hope and think that Tim (akgold) has found a way to apply nano surface coating to glass for our application in the SLA/3D printer world. I have lately been looking at this technology myself, however it would take a lot of time and testing to find the right supplier/compound and time is something I...
by Arno-Millenaar
Sun Nov 09, 2014 10:35 pm
Forum: General
Topic: Sylgard 184 availability & replacements
Replies: 115
Views: 35799

Sylgard 184 availability & replacements

@akgold(Tim): Seems close to a miracle and for sure I am very interested. Currently I have to re-build my vats within an average of 10 prints/job and sometimes even less. Due to the nature of my work, I some times have 10 (test) print jobs a day, so I will end up re-applying PDMS for at least one va...
by Arno-Millenaar
Sun Nov 09, 2014 10:26 pm
Forum: General
Topic: Any downside to cleaning with only isopropanol?
Replies: 21
Views: 3622

Any downside to cleaning with only isopropanol?

Quote from Robert Howle on November 9, 2014, 18:50 @ Arno. I was thinking about white crustie material and I assume u are referring to micro cracks? If that is the case I may refrain from the iso wash myself. Robert Micro surface cracks (craquele) are in many cases hardly visible and run across the...
by Arno-Millenaar
Sun Nov 09, 2014 9:08 pm
Forum: General Discussion
Topic: Lamp Life
Replies: 13
Views: 2864

Lamp Life

Quote from mikej on November 9, 2014, 19:50 I'll look into it. Would be less expensive if it were just the lamp and not the entire housing. But you'd have to do some work to swap the lamp from the housing. That would be great and no problem having to exchange only the lamp and the not the full-lamp...
by Arno-Millenaar
Sun Nov 09, 2014 10:22 am
Forum: General Discussion
Topic: Lamp Life
Replies: 13
Views: 2864

Lamp Life

The spec of the Vivitek manual states 5000 hours when in Std mode. However keep in mind that at 5000 hours the light output (ANSI Lumens) is expected to be only 50% of the original output. IMO we should be expecting to change the lamps at approximately 1000-1500 hours or a little more. I know pe...
by Arno-Millenaar
Sun Nov 09, 2014 9:13 am
Forum: General
Topic: Any downside to cleaning with only isopropanol?
Replies: 21
Views: 3622

Any downside to cleaning with only isopropanol?

You may even want to try to 'skip' the initial wash with iso as this still caused at a microscopic level 'micro-craquelee' for my objects. Taking my systematic testing and results from the past weeks into account I am now convinced that 'micro-craquelee' was in fact caused by the iso-alcohol and not...
by Arno-Millenaar
Sun Nov 09, 2014 6:55 am
Forum: General
Topic: Sylgard 184 availability & replacements
Replies: 115
Views: 35799

Sylgard 184 availability & replacements

Quote from Robert Howle on November 9, 2014, 13:32 I have used Sylgard 184 and 182 with good results. This is with storing resin in the vat, no water on PDMS and no alcohol on PDMS. Robert Agree, I also use Sylgard 184 and keep the resin (overnight) in the vat. Also NO water and NO alcohol come int...
by Arno-Millenaar
Sun Nov 09, 2014 6:45 am
Forum: General
Topic: Any downside to cleaning with only isopropanol?
Replies: 21
Views: 3622

Any downside to cleaning with only isopropanol?

Quote from Robert Howle on November 9, 2014, 13:29 What is TEK33 and demi-water. (demineralized or just plain distilled)? TEK33 is a universal cleaner for ultrasonic. It is pH neutral and does not foam. This is a link to such a product: http://www.soniccleaner.eu/tek33 For sure there are similar pr...
by Arno-Millenaar
Sun Nov 09, 2014 3:46 am
Forum: General
Topic: Any downside to cleaning with only isopropanol?
Replies: 21
Views: 3622

Any downside to cleaning with only isopropanol?

Quote from tobyramp@hotmail.com on February 12, 2014, 20:59 Anyone cleaning with only the ultrasonic and skipping the alcohol? Yes after many testing with alcohol, with and without the use of a ultrasonic and with or without using a 2nd ultrasonic with water and 3% TEK33 cleaner, I continued to...

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