OSE CircularKnitic v18.03
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Basics
- OSE's Fork of CircularKnitic
Goals
Needle Accomidation
- Long tails
- Bent back tails
- Test 3D printed needles
Fabric Spool
- Apply constant tension on fabric
- Roll onto spool for easy handling and storage
Part Code
CKvars.scad
////MAIN SETTINGS////
//select needle size file that will be used
include <CKneedleVars-SK120.scad>;
//diameter from inside edge of needles
p2needlegrooveID=274.4;
//number of "p2" parts around circle
p2number=12;
//number of needles mounted on each "p2" part
p2needles=5;
//number of "p3" parts around circle
p3number=4;
//number of "p4" parts around circle
p4number=4;
////PART SETTINGS////
//p2
needleWidth=1.8;
p2needlegroovefromID=2.2;
p2ID=p2needlegrooveID-(p2needlegroovefromID*2);
p2needlegrooveDepth=2.8;
p2H=104;
p2W=4.8;
p2OD=p2ID+(p2W*2);
p2holeH=75;
p2holeD=2;
p2holeCSD=4.01726;
p2holeCSL=1.5;
//p3
p3wiggle=0.1;
p3baseH=3;
p3wallW=(nH-nY)/2; //half of needle butt
p3baseID=p2ID-20-(p3wiggle*2); //need change to base on p3ridgeW2 p3baseholeD + some extra clearance
p3baseOD=p2OD+20+(p3wiggle*2)+p3wallW+3; //need change to base off of p3baseholeD and p3wallchamfW + some extra clearance
p3baseholefromODID=3;
p3baseholeD=3;
p3baseholenumber=4;
p3ridgeW1=3;
p3ridgeW2=5;
p3ridgeH=5;
p3wallchamfW=2;
p3wallchamfH=3;
p3wallHaboveholesc=5;
p3grooveH1=18;
p3grooveH2=73;
p3grooveW=2.2;
//p4
p4rampW=4;
p4rampH=14.57;
p4rampfromID=2.5;
p4rampoverhangH=4;
p4rampfromOD=1.34;
p4rampC1=10;
p4rampC2=40;
p4rampC2transX=10;
p4rampC2transZ=3.82;
p4baseH=11;
p4basegapH=8;
p4baseW=11.2;
p4basegapW=5.09;
p4clawW=9;
p4holesnumber=3;
p4holeH=5;
//plate
pPspace1=12; //? space from main table top to first plate
pPplate1=6; //thickness of geared plated
pPspace2=12; //space between geared plate and mountain plate
pPplate2=5;
//mountain
pMwallT=7.5; //min thickness from groove to back wall
pMgroove=nH-nY-p3wallW+1; //depth of groove
pMgrooveAngle=45;
pMgrooveC1=pPspace2; //top of groove at position 1 "entrance"
pMgrooveC2=nC+2; //top of groove at position 2 "push down"
pMgrooveC3=44.25; //top of groove at position 3 "top center"
pMgrooveSlop=2;
pMwallHextra=5.75; //extra height above groove at heighest
//calculated settings
centerlineD=p2ID+(p2W+(p3wiggle*2));
p4baseOD=centerlineD+p4baseW;
p4baseID=centerlineD-p4baseW;
p4basegapOD=centerlineD+p4basegapW;
p4basegapID=centerlineD-p4basegapW;
firstcenter=(((((360/p2number/p2needles/2)/360*(p2OD*PI))-(needleWidth/2))/((360/p2number/p2needles/2)/360*(p2OD*PI)))*(360/p2number/p2needles/2))/2;
p3wallH=p3wallHaboveholesc+p2holeH+p3baseH;
////SETTINGS OUTPUT ECHOS///
echo("Total Needles:", p2number*p2needles);
echo("Millimeters Between Needles:", PI*p2needlegrooveID/(p2number*p2needles));
CKp3.scad
- Added holes in base for long tails
- does this need to be bigger to allow for some slop?
- need to tweak CKvars.scad to make p3wall thicker
- need to optimize groove height to go as low as possible
- what to do if needle has bent back tail?
include <CKvars.scad>;
CKp3();
module CKp3(){
rez=360/p2number*2*2;
$fn=rez; //defines resolution of circles.
centerlineD=p2ID+(p2W+(p3wiggle*2));
echo(centerlineD);
translate([p3baseOD/2,0,0]){
difference(){
union(){
cylinder(h=p3baseH,d=p3baseOD);
difference(){
cylinder(h=p3ridgeH+p3baseH,d=centerlineD-((p2W+(p3wiggle*2)/2)));
translate([0,0,p3baseH])
cylinder(h=p3ridgeH,d1=centerlineD-(p3ridgeW2*2)-((p2W+(p3wiggle*2)/2)),d2=centerlineD-(p3ridgeW1*2)-((p2W+(p3wiggle*2)/2)));
}
difference(){
translate([0,0,p3baseH])
cylinder(h=p3wallchamfH,d1=centerlineD+((p3wallchamfW+p3wallW)*2)+((p2W+(p3wiggle*2)/2)),d2=centerlineD+(p3wallW*2)+((p2W+(p3wiggle*2)/2)));
cylinder(h=p3wallchamfH+p3baseH,d=centerlineD+((p2W+(p3wiggle*2)/2)));
}
difference(){
cylinder(h=p3wallH,d=centerlineD+(p3wallW*2)+((p2W+(p3wiggle*2)/2)));
cylinder(h=p3wallH,d=centerlineD+((p2W+(p3wiggle*2)/2)));
}
} //end main union
cylinder(h=p3wallH,d=p3baseID);
translate([-p3baseOD/2,-p3baseOD/2,0]){
cube([p3baseOD,p3baseOD/2,p3wallH]);
}
rotate([0,0,-360/p3number]){
translate([-p3baseOD/2,0,0])
cube([p3baseOD,p3baseOD/2,p3wallH]);
}
//slots
for(i=[1:p2needles*(p2number/p3number)]){
rotate([0,0,(360/p2number/p2needles/2)-(360/p2number/p2needles*i)]){
translate([((-centerlineD-(p3wallW*2)-((p2W+(p3wiggle*2)/2)))/2)-0.1,-p3grooveW/2,p3grooveH1])
cube([p3wallW+0.2,p3grooveW,p3grooveH2-p3grooveH1]);
}
}
//base needle holes
for(i=[1:p2needles*(p2number/p3number)]){
rotate([0,0,(360/p2number/p2needles/2)-(360/p2number/p2needles*i)]){
translate([-p2OD/2-0.2,-needleWidth/2,-0.01])
#cube([p2needlegrooveDepth+0.2,needleWidth,p3wallH+0.02]);
}
}
//base mounting holes
for(i=[1:p3baseholenumber]){
rotate([0,0,(((360/p3number/p3baseholenumber))/2)-((360/p3number/p3baseholenumber)*i)]){
translate([-(p3baseID/2)-p3baseholefromODID,0,0])
#cylinder(h=p3baseH,d=p3baseholeD);
}
}
for(i=[1:p3baseholenumber]){
rotate([0,0,(((360/p3number/p3baseholenumber))/2)-((360/p3number/p3baseholenumber)*i)]){
translate([-(p3baseOD/2)+p3baseholefromODID,0,0])
#cylinder(h=p3baseH,d=p3baseholeD);
}
}
//first and last holes
rotate([0,0,-firstcenter]){
translate([((-centerlineD-(p3wallW*2)-((p2W+(p3wiggle*2)/2)))/2)-0.1,0,p2holeH+p3baseH])
rotate([0,90,0]){
cylinder(h=p2OD-p2ID+0.2, d=p2holeD);
}
}
rotate([0,0,-(360/p2number*(p3number-1))+firstcenter]){
translate([((-centerlineD-(p3wallW*2)-((p2W+(p3wiggle*2)/2)))/2)-0.1,0,p2holeH+p3baseH])
rotate([0,90,0]){
cylinder(h=p2OD-p2ID+0.2, d=p2holeD);
}
}
//middle holes
for(i=[0:(p2number/p3number)-1]){
rotate([0,0,(-360/p2number/p2needles)+(i*-360/p2number)]){
translate([((-centerlineD-(p3wallW*2)-((p2W+(p3wiggle*2)/2)))/2)-0.1,0,p2holeH+p3baseH])
rotate([0,90,0]){
cylinder(h=p2OD-p2ID+0.2, d=p2holeD);
}
}
} //end for
for(i=[0:(p2number/p3number)-1]){
rotate([0,0,(-360/p2number/p2needles*(p2needles-1))+(i*-360/p2number)]){
translate([((-centerlineD-(p3wallW*2)-((p2W+(p3wiggle*2)/2)))/2)-0.1,0,p2holeH+p3baseH])
rotate([0,90,0]){
cylinder(h=p2OD-p2ID+0.2, d=p2holeD);
}
}
}//end for
//end middle holes
}
}
} //end module
CKpM.scad "mountain"
- need to use a fancy "for" function to cut groove
- need to rotate and change Z height at same time
include <CKvars.scad>;
CKpM(); //mountain
module CKpM(){
CKpMgrooveturnR=10; //radius of curved path in groove
CKpMgrooveD=nC+pMgrooveSlop; //diamter of groove cut
CKpMID=p2OD+2; //inside diameter of main wall
CKpMgrooveOD=pMgroove+(CKpMID/2); //center to OD of groove
CKpMp7X=20; //half of length of plateu of groove. preferably whole number
CKpMcutRez=2; //cuts per degree
CKpMcutDeg=(((CKpMp7X/2)*360/(PI*CKpMID))/CKpMp7X); //degrees per unit diameter
CKpMcutcylRez=8; //number of sides on groove cutting clylinder
CKpMcutA=45; //angle of cut path
pMH=pMgrooveC3+pMwallHextra;
difference(){
translate([-(p2OD+2),0,0])
cube([(p2OD+2)*2,((p2OD+2)/2)+pMwallT+pMgroove,pMH]);
cylinder($fn=180,d=CKpMID, h=pMH);
//echo(CKpMgrooveturnR*cos(asin(7/CKpMgrooveturnR)));
echo((((CKpMp7X)*360/(PI*CKpMID)))*(PI*CKpMID)/360); //end of platue
//echo((i*(PI*CKpMID)/360)-((((CKpMp7X)*360/(PI*CKpMID)))*(PI*CKpMID)/360));
echo((((CKpMgrooveturnR*cos(CKpMcutA))*360/(PI*CKpMID))/(CKpMgrooveturnR*cos(CKpMcutA)))*2);
//6
for(i=[(((CKpMp7X)*360/(PI*CKpMID))):(((CKpMgrooveturnR*cos(CKpMcutA))*360/(PI*CKpMID))/(CKpMgrooveturnR*cos(CKpMcutA)))*2:((((CKpMp7X)*360/(PI*CKpMID))))+(CKpMgrooveturnR*cos(CKpMcutA))]){
translate([0,0,pMgrooveC3-(CKpMgrooveD/2)-(((i*(PI*CKpMID)/360)-((((CKpMp7X)*360/(PI*CKpMID)))*(PI*CKpMID)/360)))])
rotate([270,0,i]) //"i" here
#cylinder($fn=CKpMcutcylRez,d=CKpMgrooveD,h=CKpMgrooveOD);
}//end i fors
//7
for(i=[0:(((CKpMp7X)*360/(PI*CKpMID))/CKpMp7X)*2:(((CKpMp7X)*360/(PI*CKpMID)))]){
for(j=[((((CKpMp7X)*360/(PI*CKpMID))/CKpMp7X)):((((CKpMp7X)*360/(PI*CKpMID))/CKpMp7X)*2):((((CKpMp7X)*360/(PI*CKpMID))))-((((CKpMp7X/2)*360/(PI*CKpMID))/CKpMp7X))]){
hull(){
//even
translate([0,0,pMgrooveC3-(CKpMgrooveD/2)])
rotate([270,0,i])
cylinder($fn=CKpMcutcylRez,d=CKpMgrooveD,h=CKpMgrooveOD);
//odd
translate([0,0,pMgrooveC3-(CKpMgrooveD/2)])
rotate([270,0,j])
cylinder($fn=CKpMcutcylRez,d=CKpMgrooveD,h=CKpMgrooveOD);
}//end hull
}}//end fors
//keystone
translate([0,0,pMgrooveC3-(CKpMgrooveD/2)])
rotate([270,0,0])
cube([CKpMgrooveD,CKpMgrooveD,CKpMgrooveOD*2],center=true);
mirror([1,0,0]){ //once groove cutting code finished, paste in mirror section
//7
} //end mirror
} //end main difference
} //end module
Needles
CKneedleVars-SK120.scad
nX=1.4; //typical thickness from side to side nY=2.44; //typical thickness from front to back nA=97.73; //total length of needle nB=7.72; //distance from bottom of needle to bottom of bent tab. nC=4.92; //thickness of bent tab. top to bottom. nD=5.09; //hook front to back nE=4.62; //from top top loop to bottom of hook nF=19.94; //top to bottom of flipper in down position nG=1.04; //minimum thickness of hook. front to back. nH=16.4; //max distance from front to back nT=0; //0=straight tail 1=bent tail aka folded back. Y of tail = C of T=1.
See Also
- Open Source Textile Construction Set
- Open Source Circular Knitting Machine
- CircularKnitic Parametric