RotoKnitic v19.01
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Using same parts and materials from OSE CircularKnitic v18.03, but switch mounting plates so that the mountain is stationary.
- requires spinning spool for fabric output
- allows for more multiple mountains and input threads
Design
- Needles will rotate in the needle holder
- https://github.com/OpenSourceEcology/circular_knitic_pick-a-needle
Concept
Standard
Pick-a-Needle
Goals
- change direction
- sock heels
Needle Accomidation
- pick-a-needle, optionally raise needles to an inactive postion
- Test laser cut needles, printed latch?
- Test 3D printed needles
Fabric Spool
- Apply constant tension on fabric
- Roll onto spool for easy handling and storage
Provisional BOM
SCAD
Pontiac Coil L-09
PCL90();
module PCL90(){
x=36.576;
y=41.402;
z=51.308;
topz=28.448; ///distance from base to center of top mount hole
top2stroke0=42.7482;
top2stroke1=68.1482;
plungerholeD=2.4384;
plungercutZ=9.652;
plungercutY=3.556;
plungertop2c=3.9624;
holeOD=4.1656;
botz=topz-12.7;
D=12.7;
difference(){
union(){
cube([x,y,z]);
translate([x/2,y/2,topz])
difference(){
cylinder(d=D,h=top2stroke0+plungertop2c);
translate([0,D/2,top2stroke0])
rotate([90,0,0])
#cylinder(d=plungerholeD,h=D);
translate([-D/2,-plungercutY/2,top2stroke0+plungertop2c-plungercutZ])
#cube([D,plungercutY,plungercutZ]);
}
}
translate([23.7998/2,0,0]){
translate([x/2,y,topz])
rotate([90,0,0])
cylinder(d=holeOD,h=y);
translate([x/2,y,botz])
rotate([90,0,0])
cylinder(d=holeOD,h=y);
}
translate([-23.7998/2,0,0]){
translate([x/2,y,topz])
rotate([90,0,0])
cylinder(d=holeOD,h=y);
translate([x/2,y,botz])
rotate([90,0,0])
cylinder(d=holeOD,h=y);
}
}//end main diff
}//end module
TODO
- remove p8 plate connector under mountain
- put hole for makerbeam on plate below
- breakup tabletop plate into multiple pieces to make max size smaller
- could make all cut plates hexagons except for geared plate.
- could make geared a little larger if move support spacer to bridge stepper gear