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Re: Copper jhead nozzle - 9 years ago
Hi Mogal, You might want to try Tellurium copper. It has 85% manageability as brass, where regular copper has about 20%. Tellurium copper is what they make welding nozzles from. It has almost the same thermal characteristics as regular copper. I found some at Onlinemetals (I'm planning on making a few hot ends myself). It's not expensive. FYI: I have no connection to them. Here's the linkby Paul Wanamaker - General
Re: where to start building a custom printer - 9 years ago
I looked at the [email protected] site. I agree with Annirak. Why don't you contact [email protected] and see if they can give you some pointers? What they are doing is very similar to Reprap. Is their hardware capable of controlling 3 extruders? I think your biggest issue will be software. From modeling the 3D product with multiple materisals, to slicing for 3 (or more) extruders. I'm not aware of softwareby Paul Wanamaker - Developers
Re: An internal struggle between the "we" and the "me" on the community and IP - 9 years ago
This is an excellent discussion, here's my take on it: The strength of the open source community is the free sharing of innovation, and the freedom to build on those shared ideas. There is no need to start from scratch - you can quickly learn from others failures and successes. By doing this you are gaining great value from the Community's IP. Now if you build on the open source community's iby Paul Wanamaker - General
Re: Full Color 3d Printer Project - 9 years ago
That's really interesting Mark, I'd love to see pictures/video when you're ready! Great work everyone. For filament colors: I think it may be necessary to use both grey and black to get the full range, as according to Myles Corbett's research - black has very strong pigment, so it may be a bit touchy to use. I've been designing a Rostock that will have a 14 x 26 inch build area, and magnetic bby Paul Wanamaker - Developers
Re: Full Color 3d Printer Project - 10 years ago
Thanks much for the feedback CPS. (Updated with materials) I've revised the 6 color - color mixing hot end to be smaller, lighter, and somewhat easier to build: - It now uses heat sinks that can be made from 1" aluminum round stock instead of a water block. These can be made on a late or even a drill press. - I shortened the Filament tubes and mixer tubes, and mixer shaft. - A mounting platby Paul Wanamaker - Developers
Re: Full Color 3d Printer Project - 10 years ago
CPS, Its always a good thing to look at how heavy and how complex - it could be made lighter and easier to machine. It's a bit smaller than it looks - the copper hotend part .812" tall, and 1" diameter at the widest. The stirrer motor would be a lot smaller (I just put on one I had a model of). As far as the water block is concerned - that could be eliminated by just using a small fan, or madeby Paul Wanamaker - Developers
Re: Introducing the ramps 10 - "Ramps10" an open source multi-configurable stepper controller shield based on the Ramps 1.4 design. - 10 years ago
TheRevva: Keep being curious. Limit to step rate: You are right, the Arduino is a big part of the problem - it gets maxed out at greater microstepping rates. One thing to look at is the torque curve. The higher the RPM the lower the torque. See here. Another thing to look at is voltage - a higher voltage allows faster speeds. Missing steps could be caused by many factors, such as: An unshieldby Paul Wanamaker - Developers
Re: Full Color 3d Printer Project - hot end design - 10 years ago
I was inspired by Myles Corbett's research to design a six color, color mixing not end. It could also be used for quick color switching. Additional images here. Your kind thoughts are welcome.by Paul Wanamaker - Developers