RoboSavvy Forum

A DIY DLP Resin 3-D printer

2013-07-18T23:30:49+01:00

just got a DARwIn neck bracket printed out!

http://mike-ibioloid.blogspot.com/2013/ ... resin.html

Statistics: Posted by Gort — Thu Jul 18, 2013 11:30 pm

A DIY DLP Resin 3-D printer

2013-07-10T12:38:35+01:00

hi Gort

Yes their web site does say they are shipping internationally but it's a bit
short on detail - I would not be suprised if they were planning on doing so
but don't have system fully in place yet. (no mention of UPS or air/sea freight, terms such as FOB etc.)

I'd love to be able to visit New York to one of the maker fairs - it's just all that airport hassle that puts me off. Topically speaking - I'd much rather they just hacked all my email and decided I was a safe bet to just let walk on through than set up all that searching and messing about every trip.
Perhaps I should suggest that to someone now I think of it...

On the strength question the specific question I would ask would be along the lines of:

"If I printed out a case for my mouse - and put the electronics in it - would there be any issues of any sort at any time during it's life - if so what?"

That sort of question can tell you a lot.

Do keep the Sedgwick info flowing.

Looking at the 3D priniting industry as a whole some interesting trends are starting to emerge that have potentially very big impacts elsewhere.

Statistics: Posted by mantrid — Wed Jul 10, 2013 12:38 pm

A DIY DLP Resin 3-D printer

2013-07-09T23:42:00+01:00

I will post more information when I am allowed too on the Sedgwick.

I can not wait until the New York Maker, as that is the best place to go for new 3d printer information.

Yes the Resin you use and its formulation are very important.

I thought Form1 was shipping there printers overseas but that is a good question to ask them in New York!

I will have brackets printed out so I can test its strength too.

Statistics: Posted by Gort — Tue Jul 09, 2013 11:42 pm

A DIY DLP Resin 3-D printer

2013-07-09T17:35:53+01:00

Hi mantrid

It's actually quite a good question the one you pose about importation.
I know that PLA and ABS have their specific TARIFF codes and can be imported without any issue (as long as you pay the duty).

For other chemicals I would nto know.

Regarding PLA vs ABS; I've written a post here http://robosavvy.com/forum/viewtopic.php?p=38325#38325 about it.

It's a bit long (and I need to proof read it a bit more tomorrow as I'm short in time today) but all the main ideas and usage cases are there.

PLA is not a one size fits all but it fits probably 95% of the cases.

Regards
Pedro

Statistics: Posted by PedroR — Tue Jul 09, 2013 5:35 pm

A DIY DLP Resin 3-D printer

2013-07-09T16:08:13+01:00

Thanks for the info pedro.

Yes I agree there will be people who find one more advantageous than the other.
I wasn't aware that PLA was that durable (everything I've read elsewhere wasn't too enthusiastic) I'll look forward to your info when you do it.

The resin for the form1 is selling for $149 per litre. I dont know
how far that will go though. There also seems to be something specific
to formlabs (hence my downloading their msd - hence my comment about disposal) It also occurs to me there may be import issues.
(I understand the VAT and duty etc aspect but I have no experience of chemical importing)

I was just looking at the form1 - it occurs to me they would be a lot prettier with the lower half sprayed black - or maybe navy blue.
Not that they're that ugly anyway though.

Statistics: Posted by mantrid — Tue Jul 09, 2013 4:08 pm

A DIY DLP Resin 3-D printer

2013-07-09T12:28:15+01:00

Hi mantrid

afaik the behaviour of the resin over time is currently the biggest "unkown" at the moment.

FFD machines (like the Replicator and similar) use standard, cheap, well known materials, including ABS and PLA.
There are new compounds being produced with PLA as it seems to work much better with FFD technology than ABS in terms of shrinkage and layer bonding (making strong parts).
Unlike what peolpe think, a part printed in a FFD machine in PLA is much stronger than its ABS counterpart. (this is matter for a separate thread which I hope I can post soon to clear this up).

Regarding the Form1 and all other UV based machines, they seem to be capable of impressive resolutions but no one yet knows in detail how each resin behaves (and how much it costs).
Different manufacturers seem to be using different combinatins or formulas.

When you inquire about a resin you can ask for the Materal Datashet and also for the MSD (Material Safety datasheet).

Here are a few things to look out for to compare materials:
From the Material datasheet (practical data, physical properties):
- Glass point
- Melting point
- Density (as it will affect how much each cubic centimeter costs to print).

- Resistance to UV
- Resistance to moist, water and/or rain

- Can the material be painted

From the MSD:
- Environmental precautions (ABS for examples can take 100-200 years to break down at a landfill)
- Potential health effects: eye contact, skin contact, ingestion, Inhalation (both uncured and cured).
- Flammability

Having said this, machines like the Form 1 have the great advantage of resolution over FFD machines.

FFD have other advantages such as the use of standard, fairly low cost materials (ABS, PLA) and possibility of tuning the printing speed vs resolution for fine printing or fast prototyping.

I'm sure there will be room for both technologies for some time to come and I don't even know if one will ever completely replace the other.

Regards
Pedro.

Statistics: Posted by PedroR — Tue Jul 09, 2013 12:28 pm

A DIY DLP Resin 3-D printer

2013-07-09T12:14:34+01:00

postscript: found it:
"How fast does the Form 1 print?

The build speed is comparable to other SL machines and varies depending on the complexity of your model. As a general rule, the build speed is 1.5 cm/hour along the Z axis. Our rook, for example takes around 2 hours."

note to self:

I must read the FAQ
I must read the FAQ
I must read the FAQ
I must read the FAQ
I must read the FAQ
I must read the FAQ...

Statistics: Posted by mantrid — Tue Jul 09, 2013 12:14 pm

A DIY DLP Resin 3-D printer

2013-07-09T11:48:46+01:00

Hi Gort

Thanks for the links.
I have seen both before but the Form1 site didnt have much info at all last time I looked. I was hoping for something a bit more hands on but perhaps I'm being premature there .

It seems things are going well for them which is nice.
The Form1 at $3,299 USD is very competative. A running cost comparison
would be nice at a later stage.
The specs they have posted seem comparable to the current devices with a better layer thickness:

Min. Feature
300 microns
(.012 inches)
Min. Layer Thickness
25 microns
(.001 inches)
Build Volume
125 x 125 x 165mm
(4.9 x 4.9 x 6.5 inches)

I havn't seen any figures for speed or post production durability
comparisons which I would like to see.
Would the finished material have the durability of ABS ? This could affect
who buys which maybe.

The printer above presumably is targeted at a similar specification to the form1?
They do seem to have a reasonably attractive device and have thought through the practicalities (the kit they supply is a good idea)
The biggest drawback that I can see is the disposal of the waste chemical.
Perhaps someone could do a 3D print of a big sealed container

Statistics: Posted by mantrid — Tue Jul 09, 2013 11:48 am

A DIY DLP Resin 3-D printer

2013-07-08T18:04:35+01:00

If you need more information this is a good place to start.

http://3dprinter.wikidot.com/resin

Formlabs is now sending out it's version of a resin printer.

http://formlabs.com/

Statistics: Posted by Gort — Mon Jul 08, 2013 6:04 pm

A DIY DLP Resin 3-D printer

2013-07-08T14:23:58+01:00

This looks very interesting.
Could someone outline the benefits of this tech. as opposed to
the current ABS printers?
I understand its been around longer and so on - I'm just wondering
if it has much advantage at this stage or if a lot more work is needed
to make it practical on a competative level?
How does it compare for speed, resolution and reliability for example?

Statistics: Posted by mantrid — Mon Jul 08, 2013 2:23 pm

A DIY DLP Resin 3-D printer

2013-07-07T21:58:53+01:00

Looks like Ron is almost ready for his kickstarter!

http://mike-ibioloid.blogspot.com/2013/ ... inter.html

Statistics: Posted by Gort — Sun Jul 07, 2013 9:58 pm

A DIY DLP Resin 3-D printer

2012-02-28T16:39:10+01:00

Hi Gort

Don't pay too much attention to herispitson's post as it seems a human spammer.
All his posts have the same structure: to state something obvious that's already been discussed or is well known and he then finishes the post with a sentence containing links to something completely unrelated (ie spam).

I've banned the user and edited his posts to remove the spam links.
I haven't removed the posts completely as they contain information that relates to the thread and kind of respect the posting rules.

In other news, the DLP printer project looks really, really cool.

I notice from the video you're using a very large projector. Is there any reason for this?
(I was wondering if the same effects could be achieved with a more compact Pico Projector but then I was left wondering how the video resolution and quality of the lens/focus affected the resolution of the printed part. )

Regards
Pedro.

Statistics: Posted by PedroR — Tue Feb 28, 2012 4:39 pm

A DIY DLP Resin 3-D printer

2012-02-27T23:57:27+01:00

Junior's posts from 2010 are an inspiration to everyone but the latest interesting site/wiki that showed up the past days is Lemoncurry with some good information about the subject.
https://code.google.com/p/lemoncurry/wiki/main

Statistics: Posted by limor — Mon Feb 27, 2012 11:57 pm

A DIY DLP Resin 3-D printer

2012-02-27T20:24:52+01:00

Not sure if I understand, herispitson? The videos and pictures above are of the DLP 3-D printer being worked on at CCCKC not by Junior Veloso.

They are similar in design though.

Statistics: Posted by Gort — Mon Feb 27, 2012 8:24 pm

A DIY DLP Resin 3-D printer

2012-02-24T07:48:32+01:00

There are a surprising number of DIY 3D printer projects out there that have nothing to do with MakerBot or RepRap developments. The coolest one I’ve seen in months is Junior Veloso‘s DIY homemade high resolution 3D printer. Junior’s system builds the object upside down by projecting light from a DLP projector into a thin layer of UV resin. Each layer takes about 8 seconds to cure and the layers are about 0.1 mm thick.1 Between the high resolution from the DLP projector and the 0.1 mm vertical layer thickness, Junior is able to get some pretty incredible results as you can see above.

Statistics: Posted by herispitson — Fri Feb 24, 2012 7:48 am