//nema fix plate library for 2d drawings

/* notes 

sc= shaft clearance
pd =pilot diameter
pl = pilot length
bd= bolt diameter
s= bolt fixings square

nema series is in inches, metricvalues maybe have errors, nem17 should have unc thread in motor plate
depending on manufacturer. Best to check motor and adjust values as required.
*/

module nema_plate(sc,pd,pl,bd,s){
      p=s/2;
    circle(d=pd);
    
  //  translate([0,0,-pl])cylinder(h=pl*2,d=pd,true); //to pl*2 to stop z fighting
    // fix holes
    translate([p,p])circle(d=bd);
    translate([p,-p])circle(d=bd);
    translate([-p,p])circle(d=bd);
    translate([-p,-p])circle(d=bd);
    translate([0,0])circle(d=sc);
    echo("bolt holes diameter =",bd);
    print("bolt hole diameter = ",bd);
}

module nema23_fix( ){
   echo("Nema23");
  nema_plate(
    sc=7,
    pd=38.1,
    pl=1.5748,
    bd=5,
    s=47.1424 );
  }


module nema17_fix( ){
   echo("Nema17");
    nema_plate(
    sc=5.5,
    pd=22,
    pl=2.26,
    bd=4.4,
    s=30.988 );
}

module nema34_fix( ){
  echo("Nema34");  
  nema_plate(
    sc=10,
    pd=73.025,
    pl=1.5748,
    bd=5.6,
    s=69.596);
 }
 
 module nema42_fix( ){
   echo("Nema42");
     nema_plate(
       sc=18,
       pd=55.5244,
       pl=1.5748,
       bd=7.5,
       s=88.9 );
 }
     
   nema34_fix();