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Post by mrbigj on Mar 5, 2017 4:07:36 GMT
So, I have a question for anyone that knows anything about 3d printing. I'm designing Gen 1 of my Millright dust shoe. I have it designed in Sketchup as such:  dust shoe 1 by Jason Lindsay, on Flickr  dust shoe 2 by Jason Lindsay, on Flickr However, when I import it into Cura to slice it, it slices it and shows me a model with all the holes filled in. I have infill turned down to 20%. Any ideas?  dust shoe 3 by Jason Lindsay, on Flickr |
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Post by mrbigj on Mar 5, 2017 4:08:41 GMT
In the last picture, the raised rectangle on the left should be open as it is in picture 1.
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Post by mp4doggie on Mar 6, 2017 0:26:55 GMT
Hmm I am def not a cura expert I have simplfy3d. But I read somwheere that if holes are not complete meaning if all lines are not conenected if there is a break somewhere it will try to fill in in . if you like you send it to me i can run it through simplyfy3d to see if i get the same errors
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Post by Derek the Admin on Mar 6, 2017 1:07:25 GMT
See if it is generating supports. I can't remember the setting in Cura but that's probably what is happening.
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Post by mrbigj on Mar 6, 2017 4:17:40 GMT
Hmm I am def not a cura expert I have simplfy3d. But I read somwheere that if holes are not complete meaning if all lines are not conenected if there is a break somewhere it will try to fill in in . if you like you send it to me i can run it through simplyfy3d to see if i get the same errors Well, I am using Sketchup for design on this, and if the lines don't meet correctly it will usually let you know. It could be printing supports as the Admin stated, since it's hollow. I'm not sure. I'd be glad to post it. Let me get it uploaded. J |
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Post by mrbigj on Mar 6, 2017 4:20:35 GMT
Hmm I am def not a cura expert I have simplfy3d. But I read somwheere that if holes are not complete meaning if all lines are not conenected if there is a break somewhere it will try to fill in in . if you like you send it to me i can run it through simplyfy3d to see if i get the same errors Here's a link to the file... Millright CNC Dust Shoe
Let me know, if you get a chance to take a look, what you find. Thank You, Jason |
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Post by mp4doggie on Mar 6, 2017 11:01:32 GMT
Hey J
So I put i through Simplyfy3d and I am getting weird errors also .I see the holes on top but if I turn it over its solid . I dont use sketchup but something called tinkercad very basic or can be complex once you know how to really use. I modify existing stl files to fit my need. Anyway I imported it into tinker I see what it should look like according to your pictures but I not seeing the same thing . Tinker shows incomplete lines and no holes
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Post by mrbigj on Mar 6, 2017 14:21:03 GMT
Hey J So I put i through Simplyfy3d and I am getting weird errors also .I see the holes on top but if I turn it over its solid . I dont use sketchup but something called tinkercad very basic or can be complex once you know how to really use. I modify existing stl files to fit my need. Anyway I imported it into tinker I see what it should look like according to your pictures but I not seeing the same thing . Tinker shows incomplete lines and no holes Ok, thanks for trying it out! I guess I will have to do some more figuring out. J |
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Post by andrew on Mar 6, 2017 18:56:26 GMT
I don't know much at all about 3D printing, but I threw your STL into 3DS Max and did an stl check.. Your model has 20 errors due to open edges (which sketchup is kind of known for). Not sure if that is your problem, or how ti fix it in Sketchup, but all the open edges are right near where your model is filling in. The off color reds in the attached screen shot are the polygons with the problems...
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Post by mrbigj on Mar 6, 2017 19:27:07 GMT
I don't know much at all about 3D printing, but I threw your STL into 3DS Max and did an stl check.. Your model has 20 errors due to open edges (which sketchup is kind of known for). Not sure if that is your problem, or how ti fix it in Sketchup, but all the open edges are right near where your model is filling in. The off color reds in the attached screen shot are the polygons with the problems... Andrew, That's for taking a look at that for me... Truly, I didn't know Sketchup was "known" for anything, LOL. It's easy to use, and has served me well in the past for modelling various things digitally. Guess I need to invest in software when the budget allows. That leaves with having to try and learn Fusion 360 I guess. Not too terribly happy about that, as I really feel it's overly cumbersome and complicated for no apparent reason. Just adding text to the face of a flat item is a PIA. I digress... Again, thank you for checking that out for me... Jason |
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Post by andrew on Mar 6, 2017 19:43:57 GMT
I love Sketchup... I use it at work all the time. Used to be for just quick sketches then talked my company into picking up the Vray Plugin and it's pretty much replaced 3DS Max for me... I don't work with stl files much. Have just had trouble in the past exporting .3ds files out of sketchup and having them not jive with whatever other software I try importing the 3ds into. lines not being closed, face normals being missing or backwards etc.. A quick sketchup project using Vray.. Attachments:
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Post by mrbigj on Mar 6, 2017 19:47:16 GMT
I love Sketchup... I use it at work all the time. Used to be for just quick sketches then talked my company into picking up the Vray Plugin and it's pretty much replaced 3DS Max for me... I don't work with stl files much. Have just had trouble in the past exporting .3ds files out of sketchup and having them not jive with whatever other software I try importing the 3ds into. lines not being closed, face normals being missing or backwards etc.. A quick sketchup project using Vray.. That's QUICK? LOL.... Looks like years worth of drawing there... |
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Post by andrew on Mar 7, 2017 0:19:11 GMT
LOL.. , I think I had about 14 hours into that one. Still WAY faster than with 3DS Max and my Max skills/knowledge. Although the results aren't quite as good, it was good enough for that rendering and the timeline  I think I figured out and fixed your sketchup model... From what I gather, to 3d Print out of sketchup your model needs to be a solid object, not just faces... With that, every surface needs an actual thickness. Also, interior faces that don't serve a purpose need to be gone, and faces need to all be oriented in the right direction. with the modeling just make sure your walls have a thickness to them (in this case I made all the walls 1mm thick offset to the interior. Then you can grab an extension called "solid inspector 2" that will debug and fix some of those other issues.. Anyway, if you care to try it: www.agaaming.com/tmp/DustShoe_Edited.stlwww.agaaming.com/tmp/DustShoe.skpOpen the SKP file and select the object. Right click and select entity info. You'll see it's now a solid and has an actual volume to it.. |
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Rob
New Member
Posts: 15 
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Post by Rob on Mar 7, 2017 23:08:13 GMT
When you have the money to do so, invest in Solidworks. It's my favorite 3D CAD, CAM, and CAE software. Extremely versatile and pretty easy to learn.
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Post by mrbigj on Mar 8, 2017 3:06:11 GMT
When you have the money to do so, invest in Solidworks. It's my favorite 3D CAD, CAM, and CAE software. Extremely versatile and pretty easy to learn. I am looking into Solidworks now... Unfortunately, no free trial  J |
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