DLP Printer, FlexVat, Germany

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Matze
Posts: 37
Joined: Fri Jan 02, 2015 7:03 am
Location: Germany

DLP Printer, FlexVat, Germany

Postby Matze » Wed Jan 28, 2015 3:36 pm

Hi everybody,

I've been a silent member of this forum for a couple of weeks now. This is my first post, so first of all I'd like to say hi and thanks to everybody who contributes to this forum. And of course a special thanks to Steve for creating this awesome software! I just finished the first version of my DLP printer. It took about two weeks to plan and one week to assembly and has the following features/ specs:

Projector:
BenQ TH681 Full HD, 3000 ANSI Lumen

Buildsize:
20x12x35cm

Mechanics:
2x Axis 16x4x40mm
2x NEMA 17
RAMPS 1.4 + Motordriver
1x Servo SG90 for the projector shutter

VAT:
Flexvat made of aluminium, acrylic glass and PTFE film 0.1mm

Any comments, suggestions and critiques are very welcome:

Printer:
IMG_20150128_202315.jpg
Printer


VAT:
IMG_20150128_161116.jpg
VAT


Projector Shutter
IMG_20150128_202341.jpg
Projector shutter


Thanks and best regards,
Matze

Matze
Posts: 37
Joined: Fri Jan 02, 2015 7:03 am
Location: Germany

Re: DLP Printer, FlexVat, Germany

Postby Matze » Wed Jan 28, 2015 3:38 pm

First print:
IMG_20150124_184218.jpg
First Print


Build platform:
IMG_20150128_161105.jpg
Another print


My record is 6cm in one hour with 0.2mm layer size... still tuning and trying different settings. For now the curing time is 5 seconds (0.2mm layer) and 10 seconds for the first three layers...

sodium
Posts: 159
Joined: Thu Jan 01, 2015 2:56 pm

Re: DLP Printer, FlexVat, Germany

Postby sodium » Wed Jan 28, 2015 3:56 pm

nice job. and most important, seems no problems at all in your first print. time to tune settings.
what resin are you curing?

Matze
Posts: 37
Joined: Fri Jan 02, 2015 7:03 am
Location: Germany

Re: DLP Printer, FlexVat, Germany

Postby Matze » Wed Jan 28, 2015 4:02 pm

Thanks, I'm using Fun to do at the moment. But I received some Makerjuice today and I will that tomorrow...

User avatar
PacManFan
Site Admin
Posts: 633
Joined: Sun Dec 01, 2013 11:44 am
Location: Ahead of the curve

Re: DLP Printer, FlexVat, Germany

Postby PacManFan » Wed Jan 28, 2015 7:39 pm

Wonderful prints, excellent looking machine! I'm glad it's all working well for you.

how_eee
Posts: 41
Joined: Sun Sep 28, 2014 11:05 am

Re: DLP Printer, FlexVat, Germany

Postby how_eee » Thu Jan 29, 2015 1:29 am

Why do you use acrylic instead of glass under ptfe?

Matze
Posts: 37
Joined: Fri Jan 02, 2015 7:03 am
Location: Germany

Re: DLP Printer, FlexVat, Germany

Postby Matze » Thu Jan 29, 2015 2:03 am

@Steve: thanks :)
@how_eee: I use acrylic because i had to drill holes into it, to tension the ptfe film. Also small holes to remove the vacuum between the ptfe and the acrylic bottom...

Matze
Posts: 37
Joined: Fri Jan 02, 2015 7:03 am
Location: Germany

Re: DLP Printer, FlexVat, Germany

Postby Matze » Thu Jan 29, 2015 12:55 pm

New build plattform today. 2mm stainless steel with 3mm holes:
IMG_20150129_161639.jpg
Build Platform

working very well so far...

FPanda
Posts: 1
Joined: Thu Dec 18, 2014 8:50 am

Re: DLP Printer, FlexVat, Germany

Postby FPanda » Fri Jan 30, 2015 8:00 am

Hallo Matze,

I am from Germany, too.
Nice setup and good looking first prints!
Do you use for peeling an asymetric lift of the build platform like mUVe 1?

After a unsuccessful bargain of a Form1 clone on ebay I decided to diy a dlp printer.

regards
Alex

Matze
Posts: 37
Joined: Fri Jan 02, 2015 7:03 am
Location: Germany

Re: DLP Printer, FlexVat, Germany

Postby Matze » Fri Jan 30, 2015 3:19 pm

Hallo Alex :)

Thanks a lot. It took a few days of calibration and trying out different build platforms/vats, but I'm finally finished with the hardware part. I'm using a FlexVat similar to this (http://projectsinterestsandetcetera.com ... m-flexvat/).
I think it's the best way to design a vat. It's really fast and it takes about 10 minutes to exchange the PTFE film once it's worn out or damaged. Good luck and PM me if you have any questions.

regards,
Matthias