Re: chemshapes question

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Hradec

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Apr 9, 2012, 1:58:14 AM4/9/12
to Derek Jacoby, chemsha...@googlegroups.com
Hi,
Hi Derek... nice meeting you!
 

I've been working with makerbot and reprap stuff for a couple years now and have been getting into a space where the resolution limits of FDM are just not acceptable. I've got some Bucktown UV curable resin on the way and am getting ready to do a DLP projector build. Early days, though, and I have a hard time telling from your site just where you are on the hardware side of things.

Yeah, our site is more a blog than a proper project, but we're working on it! sorry about that, but it was the perfect format for us to, at least, get everything "documented", you known? 

Now, organizing the docs is much easier than having to document things after they're done!
 

I'll start playing with the slicer release (probably on linux, although I do have a win7 box if that's the version you'd rather have feedback on.)

Linux is fine... actually, I use linux to develop, and I'm currently building the Windows version using wine in linux, so linux is definetely the best option for cutting-edge testing!!
 

1) Do you have specific DLP thoughts, or recommendations of places to go to figure that side of things out? I need something high res with the ability to plug a UV lamp in.

Me and TJ are using a Viewsonic Pro 8200, which is fairly cheap these days, and has native DLP resolution of 1080p, meaning it has an array of 1920 by 1080 micro mirrors!

As far as I known, thats the highest resolution you can find in an DLP chip currently. 

Regarding exchange the lamp, the original bulb already emits a lot of UV-A light, which is 358-405nm wavelenght... If you're getting bucktown UV-A resins, you should be able to use the projector as it is!

you can find TJ's "carnage" of his projector in his old blog: http://tjsnyman.com/tjsnymanblogspot/?page_id=531
search for "May 4  2011"!
 

2) I notice on your old site you talk a bit about the linear guide mechanism you favor, but I haven't seen much recently. Solved problem, or just on the shelf until the board and software stuff gets settled?
That's a question for TJ, the hardware GOD!!! 
I CC this reply back to chemshapes forum, so he will answer you as soon as he can! TJ? 


3) finally, what the status on your control board. Is it something I should be actively working with, or just watching while the rest of my build is happening this spring and summer.

We finished the first "release candidate" last week, and it's looking good so far... That's the one I'm using now to write the printing movements in the Host software. TJ again is the one who make that happen, and, thank god, that's also already sorted out! 

So, don;t worry about it... Our solution is just a shield for an Arduino Mega 2560, and we should be starting distributing as soon as I get the printing movement working!! Which should be a matter of days now... 

FYI, were also planning on start selling CS1 kits as soon as we have the CS1 Hardware and software fully working, which is just a few weeks away now, as it's mostly software now! 
 

Just FYI, I'm doing as small and high res a build as possible to allow me to make microfluidics channels to place on microscope slides. So everything in miniature :-)

WHUAU!!! that's fantastic!!!  
 

Anyway, just thought I'd say hi. I've joined your google group so you may see me around now and then.

Please make yourself at home man... If theres anything we can help, just drop us a line!! 
cheers...
-H

Derek Jacoby

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Apr 9, 2012, 2:54:21 AM4/9/12
to hra...@hradec.com, chemsha...@googlegroups.com
Awesome! I'm totally psyched that you're so close to getting some things out there. I'll work on some of the basic setup and maybe by the time I'm done then you'll have some kit pieces I can buy :-)

Hey, btw, where are you located? I'm down in San Francisco for the next couple of weeks, but generally split my time between Victoria, BC and Vancouver.

Great to meet you and I look forward to interacting more!

--Derek

TJ.

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Apr 9, 2012, 5:24:23 AM4/9/12
to chemshapes_dev
Hi Derek
Nice meeting you.
Welcome aboard.
Hradec have pretty much covered most here. So let me just elaborate on
the hardware.
As you can see by our posts and blogs, nothing is kept in secret. All
our research (succes and bloopers! ) is all posted.You guys can follow
and build without the pitt falls and add your improvements for all to
share.You guys also have to remember we do all of this in our spare
time and out of love and passion for this technology.

1- The software takes high priority now until we get all the main
bugs.sorted out. Roberto Hradec is the software guru , there is very
little that he does not know about bits and bytes. Any software
glitch, and he is the man! So let me assure you guys you are in the
best hands, Believe me I have seen what he is capable of, He is
incredible.
2- So far we have put together a printer configuration that we know
will work. We have test it manually , I advanced it manually each
layer, and it worked great. I am not going to change anything on the
hardware until we get it to print with the current hardware.we already
went through quite a few changes as it stands. Our last change was
the vat release column.
3-My main concern is this.I order to make this kit affordable for
everyone is to make the parts in bulk. And making parts in bulk is
risky and expensive. So for that reason , Once we get it all to work
together (hardware and software) That will give the go-ahead to order
parts in bulk., the hardware can unfortunately not move as fast the
software does. Most manufaturing houses has a 4 to 8 weeks lead time
on bulk orders of about a 100 unit parts. Then if anything is wrong we
start all over again.
4- But so far we have it all lined up and ready to go.
5-Your questions:

The shield- Rev. 12-03-01 is working great now. The kits for the
shield will probably available a few weeks after the print test. and
we hope to sell them in the $20.00 (us)range Not exactly sure yet,
cause the main bulk price has a big influence on the price too.
Extra on top of that would be opto boards in the main collumn. motors
and arduino.

The Linear guide. Wich also form our main Z-axis collumn is the one
thing I am really working hard on to bring the overall price
down,Being a very labor intensive and machined part , it wil be most
expensive part of the kit.For example the V-rails has many holes that
needed to be drilled and tapped.It has a opening to be milled etch. I
will keep you guys posted on all of the developments.

The DLP So far the viewsonic is a great candidate.Hight res. with a
small budget and very nice features.

Keep in touch
TJ.
> > Me and TJ are using a Viewsonic Pro 8200<http://www.viewsonic.com/products/pro8200.htm>,
> > -H- Hide quoted text -
>
> - Show quoted text -
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