T-Bone: A radically new Reprap Board April 01, 2014 12:06PM |
Registered: 11 years ago Posts: 14 |
Re: T-Bone: A radically new Reprap Board April 02, 2014 03:09AM |
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Re: T-Bone: A radically new Reprap Board April 02, 2014 03:59AM |
Registered: 11 years ago Posts: 14 |
Re: T-Bone: A radically new Reprap Board April 02, 2014 08:08PM |
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Re: T-Bone: A radically new Reprap Board April 03, 2014 03:08AM |
Registered: 11 years ago Posts: 14 |
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vreihen
While you're shooting people, don't forget to throw some lead into the person who forgot to put mounting holes in the PCB.....
Re: T-Bone: A radically new Reprap Board April 03, 2014 03:13AM |
Registered: 11 years ago Posts: 14 |
Re: T-Bone: A radically new Reprap Board April 03, 2014 06:43AM |
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Re: T-Bone: A radically new Reprap Board April 03, 2014 11:00AM |
Registered: 11 years ago Posts: 14 |
Re: T-Bone: A radically new Reprap Board April 03, 2014 01:38PM |
Registered: 13 years ago Posts: 1,352 |
Re: T-Bone: A radically new Reprap Board April 04, 2014 03:26AM |
Registered: 11 years ago Posts: 14 |
Re: T-Bone: A radically new Reprap Board April 04, 2014 08:59AM |
Registered: 11 years ago Posts: 14 |
Re: T-Bone: A radically new Reprap Board April 04, 2014 11:04AM |
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Re: T-Bone: A radically new Reprap Board April 04, 2014 11:04AM |
Registered: 10 years ago Posts: 869 |
+1. The size is ridiculous. Production costs could be decreased and/or yield increased with a more compact design unless there's some unseen design limitation that requires such a big board. I'm not ashamed of my electronics and don't mind showing them off, but I don't want them to be the focal point. Plus wiring is going to be all over the place with that layout.Quote
Dust
I think your marketing division needs to be shot!
The shape makes it dumb and unusable.
Re: T-Bone: A radically new Reprap Board April 04, 2014 11:22AM |
Registered: 11 years ago Posts: 14 |
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cdru
+1. The size is ridiculous. Production costs could be decreased and/or yield increased with a more compact design unless there's some unseen design limitation that requires such a big board. I'm not ashamed of my electronics and don't mind showing them off, but I don't want them to be the focal point. Plus wiring is going to be all over the place with that layout.Quote
Dust
I think your marketing division needs to be shot!
The shape makes it dumb and unusable.
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Dust
Other weird things is 10 end stop connections, but only 3 PWM outputs. Go hog wild (or should that be beef wild) with the stops most people at least in the RepRap community will never use or need but have just a single fan (or some other lower power device) seems backwards. I much rather have 5 or 6 end stops and 5 or 6 PWM outputs to control extra fans, maybe some LEDs for lighting, etc.
Re: T-Bone: A radically new Reprap Board April 04, 2014 11:27PM |
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Re: T-Bone: A radically new Reprap Board April 05, 2014 09:06AM |
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Re: T-Bone: A radically new Reprap Board April 06, 2014 03:37AM |
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Re: T-Bone: A radically new Reprap Board April 07, 2014 07:30PM |
Registered: 11 years ago Posts: 142 |
Re: T-Bone: A radically new Reprap Board April 08, 2014 02:34AM |
Registered: 11 years ago Posts: 14 |
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TopherMan
Hmm, interesting project. I'm inspired to play with the TMC2660 drivers now. However, I was looking around your site and couldn't find what motion controller IC is used. It's labeled as 4361 on the block diagram, but I can't find any motion controller chips with that number.
Also, I'd like to see how your motion control is done with these chips, but can't find any code anywhere. You say open source a lot in your video, but I can't actually find any sources.
Re: T-Bone: A radically new Reprap Board April 11, 2014 02:29PM |
Registered: 13 years ago Posts: 19 |
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vreihen
I'm surprised that nobody pointed out the obvious global marketing problem caused because some major cultures around the world don't eat beef, and at least one big player worships cows as gods which could actually make your product name offensive to them.....
Re: T-Bone: A radically new Reprap Board April 11, 2014 03:05PM |
Registered: 11 years ago Posts: 14 |
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case
…
What counts more is the whole bunch of new features, which are to my knowledge uniqe, at least i dont know about other controllers which offers the same.
So i would love to see a discussion which is more focused on the technical details and the benefits and possibilities of this features, especially since the indiegogo-campaign is still running and more supporters are still welcome. I am one of the supporters and i really would appreciate to see this project coming into life.
Re: T-Bone: A radically new Reprap Board April 11, 2014 03:41PM |
Registered: 13 years ago Posts: 1,352 |
3 inputs for incremental encoders (3 axis supporting closed loop control)Reprap is by all means 4 axes, where the extruder is the 4th dimension - and the most important one. So i think it makes sense to have 4 closed loops. Only 3 closed loops would be limited to applications like a milling head. Using closed loops means what i believe is named hybrid stepper, sort of speaking a stepper which is able to keep its current low and otherwise increase its own current only when its actually needed, sort of like a servo. This would be an awesome thing. The commercial drivers that do stuff like this are prohibitively expensive. So i think the feature is totally worth it - but at least 4th is required. But well, since the board has 5 steppers, me for one i would give loops to all of them.
Re: T-Bone: A radically new Reprap Board April 11, 2014 04:09PM |
Registered: 11 years ago Posts: 14 |
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NoobMan
I am thinking about
3 inputs for incremental encoders (3 axis supporting closed loop control)Reprap is by all means 4 axes, where the extruder is the 4th dimension - and the most important one. So i think it makes sense to have 4 closed loops. Only 3 closed loops would be limited to applications like a milling head. Using closed loops means what i believe is named hybrid stepper, sort of speaking a stepper which is able to keep its current low and otherwise increase its own current only when its actually needed, sort of like a servo. This would be an awesome thing. The commercial drivers that do stuff like this are prohibitively expensive. So i think the feature is totally worth it - but at least 4th is required. But well, since the board has 5 steppers ...
Re: T-Bone: A radically new Reprap Board April 11, 2014 04:51PM |
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Re: T-Bone: A radically new Reprap Board April 11, 2014 04:51PM |
Registered: 13 years ago Posts: 19 |
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InteractiveMatter
What do you like and what don't you like about the features?
Re: T-Bone: A radically new Reprap Board April 11, 2014 06:17PM |
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Re: T-Bone: A radically new Reprap Board April 11, 2014 08:00PM |
Registered: 10 years ago Posts: 903 |
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NoobMan
Yes on second thought i think could use it like 3 closed loop for x, y and e, while leaving z open loop, this way could stick with 3 closed loops in sort of a 3.5D movement, where z only counts for 0.5 of an axis as it is used only between slices.
Re: T-Bone: A radically new Reprap Board April 12, 2014 12:02AM |
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Re: T-Bone: A radically new Reprap Board April 17, 2014 02:46AM |
Registered: 11 years ago Posts: 14 |
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NoobMan
What i meant was something else, for a cartesian bot which completes a layer / slice, by moving X and Y together. Then the Z is used, but in separate movements, distinct from x and y, because Z is just sort of a layer change. I believe this is commonly called 2.5D in a generic machine. We use an extruder for toolhead, that adds up as a full dimension because it is used together with x and y. But in our case, for printers, we still use Z separate. We print a slice, then move to the next one, this is how it works. We do not print with movements which include Z. So this is x+y+e counting as 1 each, and with Z like that we have somewhat of a 3.5D space. To have full 4D, we would have to deposit plastic in Z direction, that is in a diagonal move across multiple layers, but we do not do that.
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NoobMan
In a delta you could use the 3 closed loops for the 3 motors and then you will have to use z and also extruder in open loop. It still would work a bit better if there were 4 closed loops to include extruder. Also on a separate note, the resolution and closed loop are different concepts and not related. Also you would not have to use the closed loop, its not something mandatory but optional. Or better yet, this is rather a sort of a wishlist feature, since no reprap has that now. Currently reprap drivers are open loop.
Re: T-Bone: A radically new Reprap Board April 17, 2014 11:36AM |
Admin Registered: 11 years ago Posts: 3,096 |