Re: Generation 7 Electronics Development November 24, 2010 05:30PM |
Registered: 14 years ago Posts: 64 |
Re: Generation 7 Electronics Development November 24, 2010 06:58PM |
Registered: 14 years ago Posts: 91 |
Re: Generation 7 Electronics Development December 02, 2010 08:49AM |
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Re: Generation 7 Electronics Development December 03, 2010 07:59AM |
Registered: 14 years ago Posts: 7,616 |
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i want to ask if the board is intended to be suitable for diy purposes.
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i would like to point out to situations like the red circles in the picture [www.reprap.org] and its fairly usual that the drill holes almost cut the traces they are onto. At which degree that can be regarded as an issue that remains to be decided for each individual, but i would rather put the traces slightly off-holes.
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However stuff like this is more like a "polishing" phase once the layout is pretty much decided on.
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Another thing is i imagine at least some peoples could / would want to try this with their own different stepper boards then will have to takeout the signals (step, dir, enable, gnd etc) out to their board(s).
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On the general picture, this being almost single sided, at toner transfer i would make the bottom layer ground plane (mostly). Ofc microstripping wont reach the elevated stepper drivers where it could of been of some use, but it wont be bad either. The board design could go as much as rely on bottom as gnd plane and take out all gnd lines from top to simplify it, but that can be regarded as extreme and i cant say if clearing resulted on the top would be worth the effort, but maybe it is worth a shot to see how it comes up like - up to you ofc.
Generation 7 Electronics | Teacup Firmware | RepRap DIY |
Re: Generation 7 Electronics Development December 03, 2010 09:05AM |
Registered: 14 years ago Posts: 1,352 |
Re: Generation 7 Electronics Development December 04, 2010 04:39AM |
Registered: 15 years ago Posts: 458 |
Re: Generation 7 Electronics Development December 04, 2010 06:21AM |
Registered: 14 years ago Posts: 7,616 |
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Short question, is there any support on the board for thermocouples?
Generation 7 Electronics | Teacup Firmware | RepRap DIY |
Re: Generation 7 Electronics Development December 04, 2010 04:19PM |
Registered: 15 years ago Posts: 458 |
Re: Generation 7 Electronics Development December 05, 2010 07:58PM |
Registered: 14 years ago Posts: 228 |
Re: Generation 7 Electronics Development December 06, 2010 01:43AM |
Registered: 15 years ago Posts: 458 |
Re: Generation 7 Electronics Development December 06, 2010 01:39PM |
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Re: Generation 7 Electronics Development December 06, 2010 07:38PM |
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Re: Generation 7 Electronics Development December 07, 2010 05:52AM |
Registered: 14 years ago Posts: 7,616 |
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* At the beginning of the thread there was a suggestion by someone to put 5 stepper motor drivers on the board for a second extruder, why was the idea discarded or did it just go down?
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* There was also a suggestion to put all pins of the stepper motors on one port. It was discarded because it makes no difference for the motors. But what about the software? This could save some cpu cycles for each interrupt. Just 7 more cycles each interrupt can make a big difference.
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* Am I right that the board will need a total new firmware? Is there alredy something done?
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* Is the board in the current release already usable, if not, what is missing?
Generation 7 Electronics | Teacup Firmware | RepRap DIY |
Re: Generation 7 Electronics Development December 07, 2010 12:27PM |
Registered: 14 years ago Posts: 91 |
Re: Generation 7 Electronics Development December 07, 2010 08:05PM |
Registered: 14 years ago Posts: 64 |
Re: Generation 7 Electronics Development December 07, 2010 10:27PM |
Registered: 17 years ago Posts: 1,094 |
Re: Generation 7 Electronics Development December 08, 2010 05:05AM |
Registered: 14 years ago Posts: 7,616 |
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How about a second processor programmed as a USB-serial converter?
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When the firmware is running the Bresenham to do the move the fastest axis is a master and the others are stepped when they need to be in time with that master. So a tick of the movement interrupt might be one stepper or all of the steppers depending on the algorithm and it is guaranteed that if more than one axis is moving there will be interrupts where more than one axis is stepped at the same time. Having all the STEP pins on the same port allows any steppers that need to be stepped in that interrupt use less micro controller instructions and at the exact same time (that would only matter in making an exactly perfect 45). Being on the same port doesn't mean they have to step at the same time, but can be if desired.
Generation 7 Electronics | Teacup Firmware | RepRap DIY |
Re: Generation 7 Electronics Development December 08, 2010 12:09PM |
Registered: 15 years ago Posts: 30 |
Re: Generation 7 Electronics Development December 08, 2010 10:49PM |
Registered: 14 years ago Posts: 7,616 |
Generation 7 Electronics | Teacup Firmware | RepRap DIY |
Re: Generation 7 Electronics Development December 09, 2010 12:08AM |
Registered: 14 years ago Posts: 64 |
Re: Generation 7 Electronics Development December 09, 2010 09:35AM |
Registered: 14 years ago Posts: 7,616 |
Generation 7 Electronics | Teacup Firmware | RepRap DIY |
Re: Generation 7 Electronics Development December 09, 2010 03:08PM |
Registered: 14 years ago Posts: 161 |
Re: Generation 7 Electronics Development December 09, 2010 04:53PM |
Registered: 14 years ago Posts: 7,616 |
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do I have to use the Adruino software again?
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why do I get about more than 80 design rule errors?
Generation 7 Electronics | Teacup Firmware | RepRap DIY |
Re: Generation 7 Electronics Development December 09, 2010 08:24PM |
Registered: 14 years ago Posts: 64 |
Re: Generation 7 Electronics Development December 12, 2010 03:35PM |
Registered: 14 years ago Posts: 161 |
Re: Generation 7 Electronics Development December 13, 2010 03:42PM |
Registered: 14 years ago Posts: 33 |
Re: Generation 7 Electronics Development December 13, 2010 06:46PM |
Registered: 14 years ago Posts: 228 |
Re: Generation 7 Electronics Development December 14, 2010 05:39AM |
Registered: 14 years ago Posts: 7,616 |
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korban
The only problem I have is I can't open the files on windows?
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Could someone extract the copper layer and post it somewhere?
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Lanthan
Does anybody know about an equivalent of the Timer1 library for the Sanguino?
Generation 7 Electronics | Teacup Firmware | RepRap DIY |
Re: Generation 7 Electronics Development December 14, 2010 06:26AM |
Registered: 14 years ago Posts: 228 |
Re: Generation 7 Electronics Development December 14, 2010 08:09AM |
Registered: 14 years ago Posts: 1,352 |