Re: 3D DLP Printer, 14″ of travel. May 09, 2014 11:35AM |
Registered: 9 years ago Posts: 4 |
Re: 3D DLP Printer, 14″ of travel. May 30, 2014 11:25PM |
Registered: 10 years ago Posts: 38 |
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A2
Re: 3D DLP Printer, 14″ of travel. May 31, 2014 12:53AM |
Registered: 10 years ago Posts: 1,381 |
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NewKidOnTheBlock
How did you get the ".02623 inch" figure?
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NewKidOnTheBlock
what's a good z-axis mechanism if one was to build their own instead of going the brand name route?
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NewKidOnTheBlock
I would like to get a z resolution of 1micron if possible. Ideas?
Re: 3D DLP Printer, 14″ of travel. June 26, 2014 07:15PM |
Registered: 10 years ago Posts: 38 |
Re: 3D DLP Printer, 14″ of travel. June 26, 2014 08:04PM |
Registered: 10 years ago Posts: 1,381 |
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NewKidOnTheBlock
Hey, A2. I've been following your post regarding your DLP printer and was wondering if you could share with me how I could build a z-axis using v slot alu profiles, lead screw, and stepper motor.
OpenBuilds.com has a 8mm acme lead screw (currently out of stock), do you think this would be strong enough and good enough to achieve 10micron layers?
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NewKidOnTheBlock
Also, with regards to the VAT bottom what materials would be good candidates? I've read that Cortz glass and Borosilicate glass are both good. Would Plexiglass also be a good candidate? Are there materials that are UV transmissive that are flexible so a passive tilt system could be used?
Re: 3D DLP Printer, 14″ of travel. June 27, 2014 12:02AM |
Registered: 10 years ago Posts: 38 |
Re: 3D DLP Printer, 14″ of travel. November 19, 2014 01:35AM |
Registered: 10 years ago Posts: 4 |
Re: 3D DLP Printer, 14″ of travel. November 20, 2014 08:51AM |
Admin Registered: 12 years ago Posts: 2,569 |
Re: 3D DLP Printer, 14″ of travel. January 16, 2015 10:48AM |
Registered: 9 years ago Posts: 2 |
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A2
Top Down DLP projector 3d printer
Ok, there is one negative with top down DLP printing, and that is the amount of resin to fill the vat.
Because you are moving the object down into the vat you are limited by the depth of the vat, and the amount of resin in the vat.
In addition you will need to make one small calculation to account for the volume of resin displaced by the armature supporting the build platform, that's not a deal killer just some thing to be accounted for.
So top down is reserved for small objects.
I wonder how degraded the resin becomes after printing an object, and how many objects you can print before the resin is set off.
If the resin degrades rather fast say after a few dozen parts, you could end up wasting a lot of resin.
But there is now UV resin costing only $22.50 + $12.00 shipping = $34.50/quart.
[www.solarez.com]
I imagine if you mask off the resin regions that you are not using you could further extend the resin pot life.