GearedScara
|
English • العربية • български • català • čeština • Deutsch • Ελληνικά • español • فارسی • français • hrvatski • magyar • italiano • română • 日本語 • 한국어 • lietuvių • Nederlands • norsk • polski • português • русский • Türkçe • українська • 中文（中国大陆） • 中文（台灣） • עברית • azərbaycanca • |
Yes,This page is under construction.
If you have time to help us. Thank you very much in advance.
Contents
Summary
GearedScara is a printer with new mechanism. No belt, No guide rails or rods on XY. Ver1.0 is made and tested, and we found there are some crucial features to make it better.
Goals
- Smallest parts count number.
- No belt.
- No linear rail or rods as a moving guide.
- Simplest assembly.
- All motors is linear arranged.
- "Real leveling" instead of "Auto leveling"
What is special
- It's not a standard Scara mechanism.
- The working area is radical,Bigger working area compare to traditional Scara.
- The length of two arms must be exactly same.
- When the shoulder motor is moving,The shoulder gear will move,Same to traditional Scara.But.
- The elbow arm will move if the elbow motor is not moving.
Pros and cons
- Pros
- Super quite,the only noise is the fans.
- Cons
- Moving near by the center point,The shoulder gear should move very fast.even out of the limitation.
Challenge
The Challenge is distributed in mechanic, electronic,and firmware.Really need a strong team to face those challenge.
Mechanic
- Gear backlash
- Bearing and shaft tolerance mating.
- Same length of two arms.
- Hot-end design
- Filament must goes in horizontally, and come out from nozzle vertically.
Electronic
- Analog hall sensor.
- Wiring
- PCB directly in top frame.
Firmware
- Forward and inverse kinematics.
- Homing process.
Reference
Inspirited from below projects.
