Printy! A DIY Open Source 3D Printer!

Let' see your handiwork!
Gr3ymatter
Posts: 1
Joined: Tue Dec 06, 2016 9:20 pm

Printy! A DIY Open Source 3D Printer!

Postby Gr3ymatter » Mon Dec 12, 2016 1:46 pm

Hey Guys,

I initially posted this on reddit. Wanted to share it with you guys as well :)

This is a build i have been working on with a friend of mine who has been doing DIY printers for a while now. More links to pictures are at the bottom of this forum post.

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Its a DIY SLA 3D Printer which we plan to make open source. I would love to hear your comments regarding the build and any input you can suggest we make.

Here are the details:
What is Printy
Printy is an SLA 3D printer that has a print volume of 100mm x 100mm x 100mm. Its a top down printer which prints by curing resin with a laser beam. The beam is focused on the resin through an acrylic sheet that is at the base of the VAT which contains the resin. The beam is controlled with the use of mirror galvonometers.
Printy runs on open source software - currently we use Repetier Host and use Slic3r for slicing. We have built upon the existing marlin firmware and modified it to work in polar coordinates for the laser beam.
Currently it takes around 6 hours of build time to construct it and around 30-40mins of calibration.

BOM COST
The number one ask has been about the BOM cost. Right now everything for this DIY printer costs roughly $800. We hope to bring this number down and thus are revising the BOM and trying to finding sources for cheaper components. As an open source platform we want this to succeed and since the number one concern about SLA printing has been about price, this is an important metric for us.

Our Ask
Based on your interest i want to spend the time and make this printer become a successful open source project.
But i can't do this without your help.
So i have one ask - to help me understand what you guys would like to see in Printy. It would suck if i put in the time to write instructions, put together a BOM with sources and put it up and it not being something you guys were looking for and all that work be for naught.
  • What are your pain points with SLA printing? What sucks about it?
  • If you could prioritize only one of the following what would it be? Print Quality? Speed? Price?
  • As i mentioned earlier - our current build time is 6 hours. How do you feel about that?
  • What about affordability? i can't guarantee i will be able to bring the BOM cost down as it all depends on the various sources i can find that work with the printer. How do you feel about the current price? What would you like to see?
  • I also really want to understand what you guys currently use 3D printing for. Its fun way to learn about what you guys are into and it'll also help us decide if we should mess with various parameters such as build volume etc for those of you who do larger prints.
I am really proud of the design and the way the first few prints are turning out (I haven’t even started optimizing settings yet). I firmly believe in open source (heck, most of my learning experience has been through open source projects) and I really think with a few tweaks this could be the best damn open source DIY SLA desktop printer out there. If you have any input, nows the time to share to influence this project.
So i hope you can help me out by participating in this experiment :)
On to the fun stuff!!! MOOAAAREEEE pixxxxxxxxxxxxxxx http://imgur.com/a/xMKZH

goldi80
Posts: 54
Joined: Sat Feb 22, 2014 8:34 pm

Re: Printy! A DIY Open Source 3D Printer!

Postby goldi80 » Tue Dec 13, 2016 6:40 am

this is good !!!!!!!!!!!!


Have galvo but i don't want to use without f theta lens.
Only on the middle you can print and slic3r don't have spot compensation.
Do anyone knows good f theta lesn for sale cheap and do the job.
see photo
Attachments
1402LFW_51.jpg
1402LFW_51.jpg (10.71 KiB) Viewed 3826 times

maxjewels
Posts: 2
Joined: Mon Nov 28, 2016 1:22 pm

Re: Printy! TE Open Source da di fai 3D della stampante di una!

Postby maxjewels » Tue Dec 13, 2016 6:56 pm

In a printer of this kind would serve a LAN connection, a slot for SD cards and a beautiful display.
For the rest is fantastic, I'd like to see in detail the board between the galvo and Arduino

goldi80
Posts: 54
Joined: Sat Feb 22, 2014 8:34 pm

Re: Printy! A DIY Open Source 3D Printer!

Postby goldi80 » Wed Dec 14, 2016 4:20 am

Repetier have lan connection and web Software it works put gcode on it and push start i try it works .

boelle
Posts: 4
Joined: Tue Dec 27, 2016 11:14 am

Re: Printy! A DIY Open Source 3D Printer!

Postby boelle » Tue Dec 27, 2016 11:20 am

@Gr3ymatter

Any updates?

educa
Posts: 16
Joined: Tue Jun 09, 2015 6:39 am

Re: Printy! A DIY Open Source 3D Printer!

Postby educa » Sun Feb 12, 2017 4:32 pm

Goldi, if you do the math, then if you throw your laser over a distance of around 250mm, then you can get a 60-80mm square build area with little or no deviation. After that if goes bad quickly but 60x60mm is for example not a bad part to work with

goldi80
Posts: 54
Joined: Sat Feb 22, 2014 8:34 pm

Re: Printy! A DIY Open Source 3D Printer!

Postby goldi80 » Mon Feb 13, 2017 2:27 pm

I calculate the form laser beam is 0.145 dot, wen is on 145mm or from middle 72mm the beam is like egg 0.185 dot.

Regards

educa
Posts: 16
Joined: Tue Jun 09, 2015 6:39 am

Re: Printy! A DIY Open Source 3D Printer!

Postby educa » Mon Feb 13, 2017 2:35 pm

145mm is also 2.5 times 60mm :)

cozmicray
Posts: 1
Joined: Mon Aug 10, 2015 1:01 pm

Re: Printy! A DIY Open Source 3D Printer!

Postby cozmicray » Tue Feb 28, 2017 5:19 pm

What happened to printy?
any updates?


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