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12/21/2016, 07:19 PM | #251 | |
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Quote:
The videos don't do a great job of showing the flow. But with the two earlier plates there was a strong vortex up the middle of the skimmer. With the third there is a slight swirl at the base in the opposite direction that it was before at the bottom, but the bulk of the flow (and the bubbles) go straight up. With the previous plates the skimmer was not particularly effective, and after a long break in period it wasn't producing much in the way of skimmate. With the third plate, below is what it has produced. I don't think I have it tuned yet, but all and all I'm pretty happy with it so far.
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12/22/2016, 09:31 AM | #252 |
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Will this design be put on Thingiverse? I'm really liking the way it looks and think it would work great in my sump.
How important is it to do the acetone treatment with regards to the structural integrity? |
12/22/2016, 10:58 AM | #253 | |
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As for the acetone treatment, it does improve structural integrity and it fuses the surface layers. Here though, I didn't do it for structure. I did it to get a sealed surface. Prints are porous and I didn't want skimate leaching into the inside of the printed parts where I couldn't clean it out.
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12/22/2016, 11:00 AM | #254 |
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Here is the SketchUp model of the parts for the skimmer. This includes the needle-wheel for the DCT-4000.
3D printed skimmer parts
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12/22/2016, 01:58 PM | #255 |
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Threadjack: printer shipped. Woot!
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12/22/2016, 02:00 PM | #256 | |
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I've been playing with Fusion 360 (its free for hobbyists). Seems much more powerful than the versions of sketchup I played with 3 or 4 years ago.
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12/22/2016, 02:31 PM | #257 |
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Video links broken?
posted using alternating currents.....
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12/22/2016, 03:53 PM | #258 |
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Try DC. I hear that's better for video.
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12/22/2016, 06:11 PM | #259 |
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They work for me on multiple devices. Are they broken for anyone else?
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12/22/2016, 06:15 PM | #260 |
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This how they appear to me
posted using alternating currents.....
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12/22/2016, 07:09 PM | #261 |
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What browser are you using? They are just the youtube embedded links and they still look like they are up and public.
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12/22/2016, 07:15 PM | #262 | |
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Yay! Hope it arrives quickly and you can get up and running with out much trouble. I look forward to seeing what you print with it.
Quote:
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12/22/2016, 07:31 PM | #263 |
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Fixed it..... stupid in-ap browser
posted using alternating currents.....
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12/23/2016, 08:53 AM | #264 |
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Tapatalk likes to break youtube links.
My printer shipped today as well. Design software is one place where I'm lucky. My wife is an art teacher and as such, I have access to Autodesk software. I've been using Inventor for all my design work. Unfortunately, it means I have to try to convert .skp files to .dxf before I can play with them which seems to be a 4 step process. |
12/23/2016, 03:01 PM | #265 |
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@bigdave
What printer did you go with? posted using alternating currents.....
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12/23/2016, 03:03 PM | #266 |
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I went with the Geeetech Aluminum i3
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12/24/2016, 10:31 AM | #267 |
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Models for real objects
Got a question, for objects your integrating (like the outlets) how are you getting those shapes modeled and into SketchUp? Some type of 3D scanning?
Thanks! -Josh |
12/24/2016, 01:52 PM | #268 | |
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For a number of other things, like plumbing fittings or generic electrical components, there is a ton of stuff in 3D warehouse. I will use these to mock up things to see what a final build might look like. But I don't rely on them for exact dimensions. For everything else, I just measure it and draw what I need. A good pair of calipers can be quite useful!
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12/24/2016, 01:54 PM | #269 |
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McMaster carr has downloadable designs for almost everything on their site.
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12/24/2016, 08:29 PM | #270 |
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Thanks Guys. I guess it really is all about not recreating the wheel. I've been on the fence for 2 years on buying a 3D printer, but pulled the trigger today. This thread really pushed me off the fence on it!
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12/25/2016, 12:45 AM | #271 | |
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12/25/2016, 07:19 AM | #272 | |
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12/26/2016, 09:00 PM | #273 |
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Big Dave,
ordered up the Prusa I3 Mk2. I'll be building an enclosure while I wait for 5-8 weeks for it to arrive... We will see if my sketchup skills are up to the task of making anything truly useful! I do have to say I like it when a person and company like Prusa is able to stay ahead of the clones and keep adding value and winning. It's an easy choice to support them. -Josh |
12/28/2016, 04:42 PM | #274 | |
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are you uploading the STLs to a main database other than RC? Oh BTW nice polish job on these prints - are you using the empty paint can and heat method or? I can't quite get the process down and have just taken to sanding and bondo.
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12/28/2016, 05:54 PM | #275 | |
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For the polish, I'm currently using an 18 or 20 quart pot on the stove (electric) with a 1/2 to 1 cup of acetone in the bottom. I bring the acetone to a boil over medium heat with the lid on. Then once I have a good hot vapor cloud I suspend the part in it and let it polish away. Before hand I sand/scrape the parts as needed (sometimes a lot, sometimes not at all) and then brush them all over with acetone. If you leave the sanded surface raw, the vapor won't condense on it very well during the polish and you won't get a very nice looking end product.
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