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Build Your Own SLA/SLS A forum dedicated to helping you build your own SLA/SLS-based 3d printer 2016-12-07T09:32:34-04:00 http://buildyourownsla.com/forum/feed.php?f=19&t=5117 2016-12-07T09:32:34-04:00 2016-12-07T09:32:34-04:00 http://buildyourownsla.com/forum/viewtopic.php?t=5117&p=16094#p16094 <![CDATA[Re: LittleRP proving to be a waste of time!]]>
Regards

Statistics: Posted by goldi80 — Wed Dec 07, 2016 9:32 am

]]> 2016-12-07T07:13:17-04:00 2016-12-07T07:13:17-04:00 http://buildyourownsla.com/forum/viewtopic.php?t=5117&p=16085#p16085 <![CDATA[Re: LittleRP proving to be a waste of time!]]> Statistics: Posted by hirenashra — Wed Dec 07, 2016 7:13 am

]]> 2016-12-07T05:53:55-04:00 2016-12-07T05:53:55-04:00 http://buildyourownsla.com/forum/viewtopic.php?t=5117&p=16083#p16083 <![CDATA[Re: LittleRP proving to be a waste of time!]]> Statistics: Posted by goldi80 — Wed Dec 07, 2016 5:53 am

]]> 2016-09-04T12:13:22-04:00 2016-09-04T12:13:22-04:00 http://buildyourownsla.com/forum/viewtopic.php?t=5117&p=15164#p15164 <![CDATA[Re: LittleRP proving to be a waste of time!]]> Statistics: Posted by HTL — Sun Sep 04, 2016 12:13 pm

]]> 2016-07-03T11:42:19-04:00 2016-07-03T11:42:19-04:00 http://buildyourownsla.com/forum/viewtopic.php?t=5117&p=14925#p14925 <![CDATA[Re: LittleRP proving to be a waste of time!]]> Statistics: Posted by HTL — Sun Jul 03, 2016 11:42 am

]]> 2016-06-29T16:43:17-04:00 2016-06-29T16:43:17-04:00 http://buildyourownsla.com/forum/viewtopic.php?t=5117&p=14904#p14904 <![CDATA[Re: LittleRP proving to be a waste of time!]]> Statistics: Posted by hirenashra — Wed Jun 29, 2016 4:43 pm

]]> 2016-06-27T22:04:24-04:00 2016-06-27T22:04:24-04:00 http://buildyourownsla.com/forum/viewtopic.php?t=5117&p=14899#p14899 <![CDATA[Re: LittleRP proving to be a waste of time!]]>
if you are using a 1080p high def projector (1080 X 1920) the length to width for x and y are not correct. For your CW machine settings (or any 3d printer software) you should always measure the width and calculate the height. If the actual measured width of your image area is 89.8 the height should be 50.51.

example:
1080(projector image height in pixels) / 1920(projector width in pixels) = 0.5625
89.8(measured width of image - X) * 0.5625 (projector height to width ratio) = 50.51(calculated height of image - Y)

for any image size if you measure the projected image width (measure the top edge) and multiply the width by 0.5625 you will get the height setting for a 1080p projector(for example if you have a projected image 100 mm wide the height will be 56.25)

It's easier to do the width measurement if you use a translucent paper or frosted plastic on the vat floor and use the CW software or my software to "blank" the projector image so that you can see the image without using welders glasses. A cheap digital caliper is also a good thing to have around.

If you are getting distortion with the close up lens the problem will be one of the following: the diameter of the close up lens is too small (the corners of the image are being clipped), the close up lens sits too far away from the front of the projector lens (image being clipped) or the close up lens is not parallel or centered to the projectors lens.

Statistics: Posted by HTL — Mon Jun 27, 2016 10:04 pm

]]> 2016-06-26T05:43:37-04:00 2016-06-26T05:43:37-04:00 http://buildyourownsla.com/forum/viewtopic.php?t=5117&p=14895#p14895 <![CDATA[Re: LittleRP proving to be a waste of time!]]> Statistics: Posted by hirenashra — Sun Jun 26, 2016 5:43 am

]]> 2016-06-20T14:50:10-04:00 2016-06-20T14:50:10-04:00 http://buildyourownsla.com/forum/viewtopic.php?t=5117&p=14879#p14879 <![CDATA[Re: LittleRP proving to be a waste of time!]]> Statistics: Posted by hirenashra — Mon Jun 20, 2016 2:50 pm

]]> 2016-06-20T07:23:31-04:00 2016-06-20T07:23:31-04:00 http://buildyourownsla.com/forum/viewtopic.php?t=5117&p=14876#p14876 <![CDATA[Re: LittleRP proving to be a waste of time!]]> Statistics: Posted by HTL — Mon Jun 20, 2016 7:23 am

]]> 2016-06-18T19:07:06-04:00 2016-06-18T19:07:06-04:00 http://buildyourownsla.com/forum/viewtopic.php?t=5117&p=14874#p14874 <![CDATA[Re: LittleRP proving to be a waste of time!]]> Statistics: Posted by hirenashra — Sat Jun 18, 2016 7:07 pm

]]> 2016-06-18T08:04:19-04:00 2016-06-18T08:04:19-04:00 http://buildyourownsla.com/forum/viewtopic.php?t=5117&p=14872#p14872 <![CDATA[Re: LittleRP proving to be a waste of time!]]> Statistics: Posted by HTL — Sat Jun 18, 2016 8:04 am

]]> 2016-06-18T12:52:30-04:00 2016-06-18T05:37:37-04:00 http://buildyourownsla.com/forum/viewtopic.php?t=5117&p=14871#p14871 <![CDATA[Re: LittleRP proving to be a waste of time!]]> Statistics: Posted by hirenashra — Sat Jun 18, 2016 5:37 am

]]> 2016-06-17T17:43:11-04:00 2016-06-17T17:43:11-04:00 http://buildyourownsla.com/forum/viewtopic.php?t=5117&p=14869#p14869 <![CDATA[Re: LittleRP proving to be a waste of time!]]>
BTW the flexvat should sound something like this (strike the vat rather than the FEP though or you will get dents in the FEP, the vat shown is an old prototype) the name of the game with flexvats is high tension.

Statistics: Posted by HTL — Fri Jun 17, 2016 5:43 pm

]]> 2016-06-17T17:12:09-04:00 2016-06-17T17:12:09-04:00 http://buildyourownsla.com/forum/viewtopic.php?t=5117&p=14868#p14868 <![CDATA[Re: LittleRP proving to be a waste of time!]]> I am not a LitleRP user, I have a mUVe 3d printer, but I have had similar problems with castable resins like B9 Cherry and Emerald green. These resins has a big viscosity and to be sure that the first layer will stick to build plate, I made a modification of G code for the first layer. The trick is to add a big pause before exposing the first layer, if you home your build platform to the bottom of the VAT and wait about 1 minute you will see how the amount of resin between plate and FEP significantly reduces. This is helpful in case your first layer not sticking to the build plate, if your print fail after 50 or 150 layer, there are many other reasons, like FEP tension, exposure time, mechanical issue,etc.

Statistics: Posted by color65 — Fri Jun 17, 2016 5:12 pm

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