Draw Bot: Difference between revisions
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== Concept == | |||
Initially, the plan was to duplicate the Der Kritzler; however, one of the deign goals was affordability. Der Kritzler's toothed belts and pulleys add significant cost, but seem to deliver little advantage over a spooled line design. | |||
Also, a goal is to co-locate the motors with the embedded controller and pen on the chassis. The thought is that the system will be simpler and cleaner. | |||
Prototype plans call for an Arduino Uno and breadboard, with the final device as a custom PCB w/ ATMega328 or maybe ATTiny? Anyway, the PCB might be part of the chassis? | |||
== Bill of Materials == | == Bill of Materials == | ||
* Chassis/pen holder | * Chassis/pen holder | ||
| Line 6: | Line 13: | ||
* 2 x stepper drivers | * 2 x stepper drivers | ||
** H Bridge power control [http://octopart.com/sn754410ne-texas+instruments-1320 TI 1320] | ** H Bridge power control [http://octopart.com/sn754410ne-texas+instruments-1320 TI 1320] | ||
* 2 x stepper motors | |||
* 1 x servo (for controlling pen?) | |||
* 1 x Arduino | |||
* Monofilament, 30# test? | |||
=== Deprecated === | |||
* 2 x stepper motors | * 2 x stepper motors | ||
** go w/ 5mm shaft | ** go w/ 5mm shaft | ||
| Line 12: | Line 26: | ||
** go w/ 5mm shaft | ** go w/ 5mm shaft | ||
* 20 ft toothed belt | * 20 ft toothed belt | ||
= Links = | = Links = | ||
Revision as of 17:01, 14 October 2011
Concept
Initially, the plan was to duplicate the Der Kritzler; however, one of the deign goals was affordability. Der Kritzler's toothed belts and pulleys add significant cost, but seem to deliver little advantage over a spooled line design.
Also, a goal is to co-locate the motors with the embedded controller and pen on the chassis. The thought is that the system will be simpler and cleaner.
Prototype plans call for an Arduino Uno and breadboard, with the final device as a custom PCB w/ ATMega328 or maybe ATTiny? Anyway, the PCB might be part of the chassis?
Bill of Materials
- Chassis/pen holder
- custom part, will need to build in house
- 2 x suction cups (mount points for belts)
- 2 x stepper drivers
- H Bridge power control TI 1320
- 2 x stepper motors
- 1 x servo (for controlling pen?)
- 1 x Arduino
- Monofilament, 30# test?
Deprecated
- 2 x stepper motors
- go w/ 5mm shaft
- need 40ish oz/in?
- 2 x toothed belt pulleys
- go w/ 5mm shaft
- 20 ft toothed belt
Links
- Der Kritzler
- Project3, Drawbot Uses monofillament
- Hector -- the inspiration for DK
- Gates Mectrol -- possible source for the Polyurethane (PU) timing belts (aka linear motion belt)