3d Print rough print

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behold3d
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Post#1 » Sun Oct 07, 2012 2:21 pm

Not sure this is in the correct spot. I was tempted by everyone attempting prints so i tried too. Not too bad. I did see some stair steps like others did their first time but I think with proper exposure and calibration It will be great. 49 mm tall

Also Seems that traditional stl supports do not print well. I have to come up with a new technique

sorry about fuzzy image. i guess i need a macrolens

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behold3d
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Post#2 » Sun Oct 07, 2012 2:32 pm

tried to get better pic

[IMG]http://i208.photobucket.com/albums/bb115/creaturemaker/behold%20general%20drop%20box/hand1_zpseaaa73ed.jpg[/IMG]

darthviper107
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Post#3 » Sun Oct 07, 2012 7:11 pm

Looks cool, what resolution is that at?

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behold3d
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Post#4 » Mon Oct 08, 2012 12:39 am

100.. i havent printed at 50 yet. One of the nuts from my z arm fell into my vat and loosened from the vibration. Needless to say my pdms is coming off now.

I think I may have a solution for the sylgard problem. I am testing.

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Post#5 » Mon Oct 08, 2012 11:12 am

[IMG]http://i208.photobucket.com/albums/bb115/creaturemaker/behold%20general%20drop%20box/SDC13603_zpse15b1f1e.jpg[/IMG]

[IMG]http://i208.photobucket.com/albums/bb115/creaturemaker/behold%20general%20drop%20box/SDC13602_zpse26ac1ef.jpg[/IMG]

[IMG]http://i208.photobucket.com/albums/bb115/creaturemaker/behold%20general%20drop%20box/SDC13600_zps189a870e.jpg[/IMG]

[IMG]http://i208.photobucket.com/albums/bb115/creaturemaker/behold%20general%20drop%20box/SDC13599_zpsc15aef1d.jpg[/IMG]

[IMG]http://i208.photobucket.com/albums/bb115/creaturemaker/behold%20general%20drop%20box/SDC13598_zpsa002bc05.jpg[/IMG]

mongerdesigns
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Post#6 » Mon Oct 08, 2012 11:26 am

adjust the focus on your camera. If you are using a dslr, shoot with aperture setting of F11 or higher.

But overall it looks awesome.

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behold3d
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Post#7 » Mon Oct 08, 2012 2:40 pm

its an automatic focus point and shoot camera. I wish I had a dslr. It's having a hard time focusing on such a small print enough to show the details or stair stepping. That's why i had to add more light.

Rabs1
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Post#8 » Wed Oct 10, 2012 12:50 am

Hi, how big is this?

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Post#9 » Wed Oct 10, 2012 1:52 am

Quote from behold3d on October 7, 2012, 20:21
49 mm tall

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Post#10 » Wed Oct 10, 2012 4:20 am

Been working on replacement for sylgard 184. Can we say scratch resistant? Initial tests look great.Very good for xponentially longer life than sylgard. i'll keep you all posted

UGUSILVA
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Post#11 » Wed Oct 10, 2012 4:53 am

:) now i'm curious....

maetti
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Post#12 » Wed Oct 10, 2012 9:02 am

Would be great if you find something cheaper ;-)

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behold3d
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Post#13 » Thu Oct 11, 2012 3:02 am

It may not be cheaper up front. However, it would last longer and go further.

So in the long run it would be cheaper.

Keep in mind, it may not work. But it seems to work in initial testing.

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Post#14 » Thu Oct 11, 2012 3:58 am

Sorry - didn't spot that you'd already put that!

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behold3d
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Post#15 » Thu Oct 11, 2012 8:19 am

no worries

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Post#16 » Wed Oct 17, 2012 9:19 am

Update: the test I did last week looked promising. I had to wait though to get more material. I stripped the old test off. My plan is to recoat, and just print. I will keep you updated. I will also count how long it will last

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Post#17 » Fri Oct 19, 2012 6:53 am

The test last week consisted in coating acrylic with the new material and catalyzing it from below. It worked well. I was able to take my thumb and slide it off of the fake basement without a prob.

The tests this week in the actual machine have been less than successful. the catalyzed resin will slide off of the raised side but it also does not stick well to the build plate which is not coated.

I even tried increasing the first few build layers up to 90 sec.

But, all i got was a thick layer on the basement floor.

any ideas?

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Post#18 » Fri Oct 19, 2012 7:57 am

Guess, the material you tested does not adequately pass the light spectrum we need to cure the resin. Meaning the intensity and light wavelengths are filtered somewhat and only enough passes through the material to cure some goo at the VAT bottom.

My $2.00 (inflation....)

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Post#19 » Fri Oct 19, 2012 8:03 am

Unfortunately that's not the case. For instance, the material is applied directly to the basement. it would inhibit the cure against it if it was blocking the wavelength. The build plate is pressed against the basement so that it should bond to that as well. the issue i think is that the shore strength seems to be stronger than i anticipated. we will make some adjustments.

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Post#20 » Fri Oct 19, 2012 8:04 am

if the shore strength is too strong the side to side action of the basement will pluck the piece off of the build plate.

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