Auckland 3D Printing Meetup
Posted by mikep-nz
|
Re: Auckland 3D Printing Meetup June 30, 2013 05:54PM |
Thanx a bunch for the link!!!
There's nothing at all wrong with 'weird imperial'... I grew up with the stuff!!! (Actually, that's a LIE! I refuse to 'grow up')
I'm confident it will come in VERY useful on my second (or perhaps third?) machine build. (Which I'm planning to be both an additive AND subtractive machine with selectable 'tool heads').
Since I'm still in the 'crawl' stage of the age-old crawl-walk-run philosophy, I'm building something rather _stock_ to begin with.
When I got home from the meetup, I was suitably motivated to do a first 'power up' of one of my new Mega2560 boards I purchased during the week from Mindkits. I pushed a copy of Teacup to it and 'cobbled together' (on breadboard) a crude stepper driver from some (discrete + logic) parts out of the 'junk bin' and a stepper I stripped from a 'retired' copier (a useless 7.5 degree one). I'm proud to announce that it rotated (albeit rather slowly) exactly as expected!
While I'm not able to classify it as 'progress' towards the i3 completion date, it's definitely progress for the subsequent machine(s) as they'll probably need WAY more torque (and thus current) than a Nema17 can produce!
Speaking of firmware... I'd be quite interested to hear feedback as to which version others use (and WHY they chose it).
P.S.
I really wish I'd researched the Arduino Mega 2560 boards a few years ago. I had a HORRIBLE task trying to squeeze all the I/O of a couple of projects I built on to a PIC16F877 (limited to 35 or so I/O pins on a DIP 40).
There's nothing at all wrong with 'weird imperial'... I grew up with the stuff!!! (Actually, that's a LIE! I refuse to 'grow up')
I'm confident it will come in VERY useful on my second (or perhaps third?) machine build. (Which I'm planning to be both an additive AND subtractive machine with selectable 'tool heads').
Since I'm still in the 'crawl' stage of the age-old crawl-walk-run philosophy, I'm building something rather _stock_ to begin with.
When I got home from the meetup, I was suitably motivated to do a first 'power up' of one of my new Mega2560 boards I purchased during the week from Mindkits. I pushed a copy of Teacup to it and 'cobbled together' (on breadboard) a crude stepper driver from some (discrete + logic) parts out of the 'junk bin' and a stepper I stripped from a 'retired' copier (a useless 7.5 degree one). I'm proud to announce that it rotated (albeit rather slowly) exactly as expected!
While I'm not able to classify it as 'progress' towards the i3 completion date, it's definitely progress for the subsequent machine(s) as they'll probably need WAY more torque (and thus current) than a Nema17 can produce!
Speaking of firmware... I'd be quite interested to hear feedback as to which version others use (and WHY they chose it).
P.S.
I really wish I'd researched the Arduino Mega 2560 boards a few years ago. I had a HORRIBLE task trying to squeeze all the I/O of a couple of projects I built on to a PIC16F877 (limited to 35 or so I/O pins on a DIP 40).
Sorry, only registered users may post in this forum.