my DLP build

Here's the place to post pics / video and discussions regarding hardware you've built or are in the process of building.
hp_
Posts: 301
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Re: my DLP build

Postby hp_ » Mon Jun 23, 2014 1:58 am

Yesterday i tried to print Ironman.

here is the result:


looks like the top part i did to fast a good learning lesson :)
the mask part came out really awsome!

cheers,
hp_

hp_
Posts: 301
Joined: Tue Dec 24, 2013 10:25 am
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Re: my DLP build

Postby hp_ » Tue Jun 24, 2014 1:30 am

and here is the completed print.

~60 micron xy
100 micron in z

z speed: 200
exposure: 1900ms
first 5 layers: 6000ms
print duration: 1:39
resin: makerjuice subg+ mixed with subflex

cheers,
hp
Attachments
ironman.jpg
Iron man

snow
Posts: 4
Joined: Fri Jul 25, 2014 4:23 am
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Re: my DLP build

Postby snow » Fri Jul 25, 2014 4:41 am

hi hp_,
nice job!

got a few question about the resolution
for the ear you used 24 micron xy resolution. is that the maximum resolution for p1500 / closest you can get a sharp image?
if this unmodified projector?

thanks!

hp_
Posts: 301
Joined: Tue Dec 24, 2013 10:25 am
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Re: my DLP build

Postby hp_ » Fri Jul 25, 2014 5:23 am

Hi snow, this is all done with an unmodified projector. the aproaximate xy resolution is based on 1920 x 1080 resolution on 192 mm x 108mm = 100 micron - if you project on an area of 48mmx 27mm you would have ~25 micron per xy area.

i think this is probably the maximum resolution.

cheers,
hp

EdgE
Posts: 32
Joined: Sun Jan 26, 2014 1:28 pm
Location: Utrecht - NL
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Re: my DLP build

Postby EdgE » Sat Jul 26, 2014 10:51 am

Very nice print! :)
What is the average printed wall thickness of the mask?

hp_
Posts: 301
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Re: my DLP build

Postby hp_ » Sat Jul 26, 2014 4:32 pm

Hi Edge,

i've measured 1.5mm so i guess average.. 1.5 - 2mm

hp

MichaelD33
Posts: 27
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Re: my DLP build

Postby MichaelD33 » Thu Aug 21, 2014 9:50 pm

Hey,
How are you peeling the print? It looks like your using a pillow vat, could you explain it a bit? It seems quite complicated...
Thanks,
Michael

anthony.julu
Posts: 25
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Re: my DLP build

Postby anthony.julu » Fri Aug 29, 2014 1:01 pm

This is a wonderful work. The Ironman head looks great!

Hp, do you think that belt driven Z axis can do 25 and 50 micron layer thickness!
If it can do so, I would say it will be a great option to consider, since it's faster and quieter than a lead screw. Have you done any experimentation with those thicknesses?

hp_
Posts: 301
Joined: Tue Dec 24, 2013 10:25 am
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Re: my DLP build

Postby hp_ » Fri Aug 29, 2014 1:17 pm

Hi,

i can confirm 50micron is also not a problem. i print this thickness all the time now.
25 micron i also tried and it printed but i made a mistake and let my vat run dry :)

be-aware i use a special VAT construction that makes this possible.. very low pull force needed :)
cheers,
hp

hp_
Posts: 301
Joined: Tue Dec 24, 2013 10:25 am
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Re: my DLP build

Postby hp_ » Thu Jan 01, 2015 11:17 am

Note to self, tension of the fep film is very important when using a pillow vat.

been struggling this morning and decided to check tension of the fep.. saw it was not stretched enough. fixed the problem.. and again.. printing with no issue :)

the more strechted and tensed the fep film is the easier it is to print with it.

cheers,
hp


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