Sango bc
Release status: Experimental
| Description | Low Cost ARM based Printer Controller
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| License | GPL
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| Author | |
| Contributors | |
| Based-on | |
| Categories | |
| CAD Models | KiCAD
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| External Link |
Latest Updates:
- Board built
- Teacup firmware ported
- Testing underway! see video
There is a video, but due to this crap mediawiki I can't put the link in. I realize that spammers are a pain, but if we can't edit wiki pages what the heck is the point? Whoever invented captchas should be taken out and shot, frankly they are an abomination. If you want to see the video try google, and then mail the admin here and get them to fix the site.
Note: this is a work in progress. Expect changes!
Contents
Specification (v0.1 prototype)
- GPL V2.0
- low cost
- evolution of Sanguinololu
- 4 axis stepper controller
- 32 bit ARM Cortex M0 64KB Flash 8K RAM
- extruder temperature controller (FET + thermistor)
- heated bed temperature controller (FET + thermistor)
- micro SD card
- modular stepper drivers for easier replacement, choice of drivers
- compatible with Pololu A4988 or Stepstick
- compatible with A4982/A4985 "stretchstick"
Possible Changes for v0.2
- use 64 pin Cortex M0 with 128KB Flash (Freescale Kinetis KL25)
- built in USB
- optional on board stepper drivers
- software selectable stepper modes
- software selectable current control
- extra headers for expansion, LCD, keypad etc
- dual footprints to allow cheaper connectors
- fuse
Estimated Cost
Baseboard : £18 / $29 Four stepper drivers: £4.70 x 4 = £18.80 Total cost : ~ £36-40
Stepsticks are selling very cheap on ebay at £4.40 / $7.20 for A4983 version, or £5.80 / $9.50 for A4988 including free shipping.
Estimated cost for Stretchstick-A4985 is £4.50 in quantity of 10, if you prefer DIY.
Lowest total cost baseboard + 4 drivers = £18 + 4 x £4.50 = £36 ($58).
All costs exclude taxes, shipping. Exchange rate on 19/09/2012, 1 USD = 0.616651 GBP.
Stretchstick
An evolution of the Stepstick using a TSSOP package and larger SMT parts to allow easier DIY construction. The module pin assignment is compatible with Stepstick.
Features
- Allegro A4982 or A4985
- 0805 SMT components
Cost
Estimated cost for Stretchstick-A4985 is £4.50 in quantity of 10.
