TeensyPrinter: a RAMPS-like board built around the Teensy 3.6 March 25, 2019 03:48PM |
Registered: 6 years ago Posts: 9 |
Re: TeensyPrinter: a RAMPS-like board built around the Teensy 3.6 March 26, 2019 01:16PM |
Registered: 6 years ago Posts: 109 |
Re: TeensyPrinter: a RAMPS-like board built around the Teensy 3.6 March 26, 2019 10:26PM |
Registered: 6 years ago Posts: 9 |
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orbitalair
How is this coming?
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Could you spin a simpler version with just the basics? I have some teensy 3.1s I think.
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Can KiCAD export a eagle fileset?
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Also if the board is 100mmx100mm or less several asian companies will spin 10 boards for $2 or $5.
Re: TeensyPrinter: a RAMPS-like board built around the Teensy 3.6 March 27, 2019 09:46AM |
Registered: 6 years ago Posts: 109 |
Re: TeensyPrinter: a RAMPS-like board built around the Teensy 3.6 March 27, 2019 06:46PM |
Registered: 9 years ago Posts: 978 |
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salfter
Is there enough I/O on a Teensy 3.1 to drive even a single-extruder configuration? Each extruder needs three digital outputs (step, direction, chip select), a PWM output (heater), and an analog input (thermistor). Axis steppers need three digital outputs each.
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It needs 2-oz. copper to get heavy enough traces to handle up to 15A in some places
Re: TeensyPrinter: a RAMPS-like board built around the Teensy 3.6 March 27, 2019 07:15PM |
Registered: 6 years ago Posts: 9 |
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frankvdh
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salfter
Is there enough I/O on a Teensy 3.1 to drive even a single-extruder configuration? Each extruder needs three digital outputs (step, direction, chip select), a PWM output (heater), and an analog input (thermistor). Axis steppers need three digital outputs each.
Do you really need a Chip Select on every stepper? So long as you aren't actually sending step pulses, nothing will move. Maybe you can tie CS to be true all the time?
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Also, for mixing extruders like the Diamond, you only need one heater and thermistor for 3 or 5 steppers.
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It needs 2-oz. copper to get heavy enough traces to handle up to 15A in some places
I suggest not directly powering the bed heater from the controller.
Re: TPS: a RAMPS-like board built around the Teensy 3.6 March 27, 2019 11:46PM |
Registered: 6 years ago Posts: 9 |
Re: TPS: a RAMPS-like board built around the Teensy 3.6 March 28, 2019 03:58AM |
Registered: 10 years ago Posts: 14,672 |
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salfter
You can't configure TMC2130s without it. Each SPI slave needs its own CS line.
Re: TPS: a RAMPS-like board built around the Teensy 3.6 March 28, 2019 12:35PM |
Registered: 6 years ago Posts: 9 |
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dc42
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salfter
You can't configure TMC2130s without it. Each SPI slave needs its own CS line.
You can use a common CS for all the stepper drivers if you daisy chain the SPI signals. This means that you have to write to/read from all the drivers in every transaction.
Re: TPS: a RAMPS-like board built around the Teensy 3.6 March 28, 2019 03:36PM |
Registered: 10 years ago Posts: 14,672 |
Re: TPS: a RAMPS-like board built around the Teensy 3.6 March 28, 2019 05:29PM |
Registered: 6 years ago Posts: 9 |
Re: TPS: a RAMPS-like board built around the Teensy 3.6 June 12, 2019 02:19PM |
Registered: 4 years ago Posts: 1 |