Next generation of RepRaps, which to build? November 19, 2013 12:09PM |
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Re: Next generation of RepRaps, which to build? November 19, 2013 01:06PM |
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Re: Next generation of RepRaps, which to build? November 19, 2013 01:21PM |
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Re: Next generation of RepRaps, which to build? November 19, 2013 01:38PM |
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Re: Next generation of RepRaps, which to build? November 19, 2013 01:52PM |
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Re: Next generation of RepRaps, which to build? November 19, 2013 02:06PM |
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Re: Next generation of RepRaps, which to build? November 19, 2013 02:08PM |
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Re: Next generation of RepRaps, which to build? November 19, 2013 02:38PM |
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Re: Next generation of RepRaps, which to build? November 19, 2013 04:46PM |
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Re: Next generation of RepRaps, which to build? November 20, 2013 09:41AM |
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Sublime
I would avoid all printers where the printed objects moves in any direction other than Z as they all suffer from the same issues with the moving mass and vibration that lower the print quality (yes you can tune one to get good prints but not as easy as the following types of machines). So that leaves you with geometries like: Delta (3DR, Kossel, Rostock), CoreXY (don't know any by name), Etch-e-sketch (Ultimaker, Tantillus, Ingentis).
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vegasloki
I've started building Mendel Max 2.0. In fact my waterjet contractor is my first customer. I've had a few of my commercial suppliers inquire about printers and most wanted larger build areas and something that looked more robust and were willing to pay for it. The MM2 I think by definition is a Repstrap using Adiran's definition. Regardless, I see it as a great bridge between home/hobby machines and entry level pro machines. Nothwithstanding, an i2 or Sells Mendel can produce some good prints but there are things on the MM2 that are attractive. Larger build envelope is one. Another is the reported speed though in looking around the current hotend/extruder technology appears to be more of a liniting factor. A factor for another customer who owns a Replicator is the ability to print higher end plastics and nylon. I'm waiting on a few more bits though I'm hoping by end of the week the rest of the part arrive.
The hardware is expensive because the hardware is expensive.The 27 or so cut plates are the greatest cost of the frame if they are laser or waterjet cut. You may be able to use something less expensive or cut the plates yourself by hand though one would have to be pretty good to do such. The extrusion parts are available at Misumi or 8020 or from China. The motion parts aren't cheap either though widely available from Misumi, Igus, PBC or China. They're made to exacting tolerances and there is a cost to that. There are only several hundred MM2s in the wild at this point but it's early in the machine life cycle. The sources were released in June and the cost is certainly a barrier to many. As for docs, what's posted at Makers Tool Works is some of the best documentation I've seen on an open hardware (or even OSS) project in the nealry 20 years I've been involved in open source. Clearly explained; solid, current BOM; plenty of pictures including a 3D pdf and sources for all the parts including the mechanical bits so a complete assembly can be generated as a model. The hardware build manual is 78 or so pages with another for electronics.
If by "true RepRap" you mean poorly documented, fragmented information, and a lack of complete assembly instructions, sure, why not. The RepRap Wally has more potential then the Simpson since it's further along in development. But personally, I'm interested in a stable printer design which I can build and get back to printing. If I had the money, I'd buy an assembled printer and call it a day. I'd rather spend more time focused on learning and using OpenSCAD, than tinkering with a prototypeQuote
SheldonE
Persoanlly, I'd be looking at a Simpson. They seem to be the closest to a true RepRap than anything out now.
Re: Next generation of RepRaps, which to build? November 20, 2013 08:08PM |
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Re: Next generation of RepRaps, which to build? November 21, 2013 08:43AM |
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vegasloki
I don't see the MM2 appealing to most DIY Reprappers. The appeal is for those shops that are looking to get into a machine, don't mind spending a couple grand and be able to print more types of plastic and nylon. These guys have looked at entry level machines from 3DS and others and are willing to spend a few grand to get up and going to test the waters but not $10 or $20 grand for one of the name brand machines. If it takes off for their shops they could invest in a larger machine or build on what they have. If it doesn't they aren't out a bunch of money or tied into a long term lease. The smaller maker shops seem interested because of the potential to change tool heads to laser or mini mill.
I like the Simpson. Had I more time I'd put one together. There was a similar evolution in robotics for manufacturing where the designs went from a cartesian style to a movement style similar to the delta bots.
Re: Next generation of RepRaps, which to build? November 21, 2013 01:14PM |
Registered: 12 years ago Posts: 157 |
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cassetti
The Prusa i3 looks interesting, but it seems the design is fragmented.
Re: Next generation of RepRaps, which to build? November 21, 2013 09:15PM |
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Re: Next generation of RepRaps, which to build? November 22, 2013 01:34AM |
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Re: Next generation of RepRaps, which to build? November 22, 2013 12:28PM |
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cozmicray
Look at
[www.3ders.org]
It's a 3D jungle out there!
Perhaps a Rigidbot?
[inventapart.com]
Maybe an Ordbot Hadron
[buildlog.net]
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vegasloki
From my perspective as a supplier and OEM in North America the i3 is far and away the most popular DIY Reprap. There are several frame choices but the mechanics are similar if not identical and there is a robust community to lean on if need be.
Re: Next generation of RepRaps, which to build? November 22, 2013 08:45PM |
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Re: Next generation of RepRaps, which to build? November 22, 2013 09:18PM |
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Re: Next generation of RepRaps, which to build? November 22, 2013 10:16PM |
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Re: Next generation of RepRaps, which to build? November 23, 2013 10:22PM |
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Yvan
I've built a few Prusa i3, and they are okay. Not more not less, just okay. I don't quite see the reason for the huge buzz around them. Maybe it's like the Volkswagen Beetle. It was okay as a car, but man did they ever build a lot of them...
I should also point out that the J-Head is a good hot end, but it is a step down from the Eckertech all metal hot end, if that is the one that is in the older Prusa.
Re: Next generation of RepRaps, which to build? November 23, 2013 10:39PM |
Registered: 12 years ago Posts: 661 |
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Dorian
With the Mendel Max 2 its all water cut plates right? How is this any different than just buying a commercial machine?
Re: Next generation of RepRaps, which to build? November 24, 2013 01:05PM |
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Re: Next generation of RepRaps, which to build? November 25, 2013 05:54AM |
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Re: Next generation of RepRaps, which to build? November 25, 2013 08:55AM |
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Re: Next generation of RepRaps, which to build? November 25, 2013 11:30AM |
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Re: Next generation of RepRaps, which to build? November 25, 2013 12:02PM |
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