Added some parameters to customizer & bash script

README.md

@@ -1,21 +1,75 @@
 # Parametric SMT Tape Feeder
-=====
 
-What is it for?
----
+Parametric Feeder Design, load in OpenSCAD to make yours.
+
+## What is it for?
+
 Serves to hold SMT tapes with resistors, capacitors, etc. in place. Designed to use in a Pick and Place Machine, like [OpenPnP](http://openpnp.org/). Another option would be [this](http://malte-randt.de/strip-feeders-and-modular-tray-for-smd/).
 
 
-Features
----
+## Features
+
   * parametric design fully adaptable to your needs
-  * width of one feeder is tapeWidth + 3mm, eg. for 8mm tapes the feeder will be 11mm 
+  * width of one feeder is tapeWidth + 3mm, eg. for 8mm tapes the feeder will be 11mm
   * gang multiple feeder in one element
   * fully 3d printable, optimized design for best print results
   * keeps tape in position by slight force causing friction
   * no vitamins needed
   * prepared to be mounted to bed by 6mmx3mm magnets or M3 screw
   * try in Thingiverse Customizer
 
+## Print settings
+
+|    Option    |    Value     |
+| ------------ | ------------ |
+| Rafts        | No           |
+| Supports     | No           |
+| Layer height | 0.2-0.3 [mm] |
+| Nozzle size  | 0.5 [mm] max |
+| Infill       | 20%          |
+
+### Important notes
+
+**Print in a color contrasting white paper tapes and black plastic tapes**
+
+Before printing your feeders make a small test piece to check tolerances & more.
+
+<img src="images/test.jpg" alt="test" width="500"/>
+
+
+## Thingiverse
+
+[thing:2506053](https://www.thingiverse.com/thing:2506053)
+
+## Images
+
+### Parameters
+
+#### Description
+
+![Description 1](images/parametric_feeder_desc.png)
+
+![Description 2](images/parametric_feeder_desc2.png)
+
+#### Cross section
+
+![Cross section](images/sFeederOpenSCAD_magnetPockets.png)
+
+### Creating the stl
+
+![stl creation](images/sFeederOpenSCAD_edited.png)
+
+### Feeder with identifier
+
+![Feeder with identifier](images/gangedFeeder8mm_with_Identifier.jpg)
+
+### Usage
+
+![Photo](images/parametric_feeder_photo.jpg)
+
+## Scripts
+
+The provided `sFeeder_batch_export` scripts generate the files inside the `stl` folder.
+
+Don't hesitate to take them as a reference for creating scripts for your own needs.
 
-https://www.thingiverse.com/thing:2506053

sFeeder.scad

@@ -19,10 +19,16 @@ feederLength=180;
 tapeLayerHeight=22.8;
 //Bank ID: To identify the feeder in OpenPnP unique IDs for each bank are built and embossed into the ganged feeder. -1: no identifier.
 bankID=1; //[-1:1:9]
+//Change the starting letter according to ASCII code: 65 -> 'A', 75 -> 'K', 85 -> 'U' and so on.
+startingLetter=65; //[65:1:90]
 //diameter of pockets on the side to put a magnet in
 magnetDiameter=6;
 //height of the pocket for the magnet
 magnetHeight=3;
+//How many magnet pockets in the right side?
+magnetPocketsRightSide=3;
+//How many magnet pockets on the left side?
+magnetPocketsLeftSide=4;
 
 /* [advanced] */
 
@@ -32,7 +38,13 @@ bodyHeight=6;
 tapeSupportHoleSide=2.8;
 tapeSupportNonHoleSide=0.9;
 
+//Separation from the magnet pocket to the edge, right side
+separationRightSide=24.5;
+//Separation from the magnet pocket to the edge, left side
+separationLeftSide=7.5;
 
+// Change this value to get a thicker space under the magnet
+layerBelow=0.35;
 
 /* [expert] */
 //higher values make the left arm stronger
@@ -49,7 +61,7 @@ overallWidth=tapeWidth+additionalWidth;
 overallHeight=tapeLayerHeight+tapeHeight+tapeGuideUpperOverhang+topFinishingLayer;
 tapeXcenter=(overallWidth/2)+tapeClearance/2;
 
-    
+
 
 //make the feeders
 gang_feeder();
@@ -64,32 +76,36 @@ module gang_feeder() {
     difference() {
         union() {
 
-                
+
             //stack up feeders
             for(i=[0:1:numberOfFeeders-1]) {
-                translate([i*(tapeWidth+additionalWidth),0,0]) 
+                translate([i*(tapeWidth+additionalWidth),0,0])
                     feeder_body(i);
             }
-            
-            
+
+
         }
-        
+
         //magnet pockets
-        for(j=[0:1:2]) {
+        //echo((feederLength-2*separationRightSide)/(magnetPocketsRightSide-1))
+        for(j=[0:1:magnetPocketsRightSide-1]) {
             //magnet pockets right side
-            translate([0,j*((feederLength-49)/2)+24.5,0]) {
+            translate([0,j*((feederLength-2*separationRightSide)/(magnetPocketsRightSide-1))+separationRightSide,0]) {
                 translate([(numberOfFeeders)*(tapeWidth+additionalWidth),0,0 ]) {
-                    magnetic_fixation_pocket(0,feederLength/2);
+                    //magnetic_fixation_pocket(0,feederLength/2);
+                    magnetic_fixation_pocket();
                 }
             }
-            
+
         }
-
-        for(j=[0:1:3]) {
-            translate([0,j*((feederLength-15)/3)+7.5,0]) {
-                //magnet pockets left side
+
+        //echo((feederLength-2*separationLeftSide)/(magnetPocketsLeftSide-1))
+        for(j=[0:1:magnetPocketsLeftSide-1]) {
+            //magnet pockets left side
+            translate([0,j*((feederLength-2*separationLeftSide)/(magnetPocketsLeftSide-1))+separationLeftSide,0]) {
                 rotate([0,0,180])
-                    magnetic_fixation_pocket(0,feederLength/2);
+                    //magnetic_fixation_pocket(0,feederLength/2);
+                    magnetic_fixation_pocket();
             }
         }
     }
@@ -103,19 +119,19 @@ module feeder_body(feederNo) {
     translate([0,feederLength,0]) {
         rotate([90,0,0]) {
             difference() {
-                
+
                 //main form
                 linear_extrude(feederLength) {
                     polygon(points=[
                         //base
                         [0,0],
                         [overallWidth,0],
-                    
+
                         //right arm way up ("spring", outer part)
                         [overallWidth,bodyHeight*0.8],
                         [overallWidth-springSkew,tapeLayerHeight-3],
                         [overallWidth-springClearance,tapeLayerHeight],
-                    
+
                         //right arm tape guide
                         [overallWidth-springClearance,overallHeight],
                         [tapeXcenter+tapeWidth/2+tapeClearance-tapeGuideUpperOverhang,overallHeight],
@@ -124,31 +140,31 @@ module feeder_body(feederNo) {
                         [tapeXcenter+tapeWidth/2+tapeClearance,tapeLayerHeight],
                         [tapeXcenter+tapeWidth/2+tapeClearance-tapeSupportHoleSide,tapeLayerHeight],
                         [tapeXcenter+tapeWidth/2+tapeClearance-tapeSupportHoleSide,tapeLayerHeight-0.6],
-                    
+
                         //right arm way down ("spring", inner part)
                         [overallWidth-springSkew-springWidth,tapeLayerHeight-3],
                         [overallWidth-springWidth,bodyHeight*0.8],
                         [overallWidth-springWidth-1,bodyHeight],
-                        
+
                         //base (inner part)
                         [tapeXcenter-tapeWidth/2+tapeSupportNonHoleSide,bodyHeight],
-                        
+
                         //left arm up (inner part)
                         [tapeXcenter-tapeWidth/2+tapeSupportNonHoleSide,tapeLayerHeight],
-                        
+
                         //left arm tape guide
                         [tapeXcenter-tapeWidth/2,tapeLayerHeight],
                         [tapeXcenter-tapeWidth/2,tapeLayerHeight+tapeHeight],
                         [tapeXcenter-tapeWidth/2+tapeGuideUpperOverhang,tapeLayerHeight+tapeHeight+tapeGuideUpperOverhang],
                         [tapeXcenter-tapeWidth/2+tapeGuideUpperOverhang,overallHeight],
-                        
+
                         //left arm down (outer part)
                         [0,overallHeight],
                         [0,0]
 
                     ]);
                 }
-                
+
                 //direction of travel while picking with OpenPnP
                 if(feederLength>=100) {
                     for (i=[0:1:3]) {
@@ -158,34 +174,34 @@ module feeder_body(feederNo) {
                                     circle(3,$fn=3);
                     }
                 }
-                
+
                 //4 identification marks
                 translate([additionalWidth,bodyHeight-0.9,feederLength-2])
                     rotate([90,90,180])
                         identification_mark(feederNo,"left","top");
-                
+
                 translate([additionalWidth,bodyHeight-0.9,2])
                     rotate([90,90,180])
                         identification_mark(feederNo,"right","top");
-                
+
                 translate([tapeXcenter,bodyHeight-0.9,feederLength-0.9])
                     rotate([0,0,0])
                         identification_mark(feederNo,"center","top");
-                
+
                 translate([tapeXcenter,bodyHeight-0.9,0.9])
                     rotate([0,180,0])
                         identification_mark(feederNo,"center","top");
-                
+
                 //reference hole
                 translate([tapeXcenter+tapeWidth/2+tapeClearance-1.75,tapeLayerHeight,feederLength-4])
                     rotate([90,90,0])
                         cylinder(h=0.6,d=1.4,center=false,$fn=20);
-                
+
                 //3 registration points (for magnets, bolts or to screw from top)
                 //bottom_fixation(feederLength/2);
                 bottom_fixation(17);
                 bottom_fixation(feederLength-17);
-                
+
 
             }
         }
@@ -196,29 +212,29 @@ module identification_mark(feederNo,_halign,_valign) {
 
     if(bankID!=-1) {
         linear_extrude(height=.91) {
-            text( str(bankID, chr(feederNo+65) ),font=":style=Bold", size=4, valign=_valign, halign=_halign);
+            text( str(bankID, chr(feederNo+startingLetter) ),font=":style=Bold", size=4, valign=_valign, halign=_halign);
         }
     }
-                
+
 }
 
 module magnetic_fixation_pocket() {
-    layerBelow=0.25;
+    // change 'layerBelow' to get a thicker space under the magnet, 2 layers is ok, check your slicer's settings and preview!. Default: layerBelow=0.25;
     magnetInset=1;
     magnetDiameterOversizedFor3dPrinting=magnetDiameter+0.2;
-    
+
     translate([0,0,layerBelow]) {
             union() {
                 translate([-(magnetDiameterOversizedFor3dPrinting)/2-magnetInset,0,0])
                     cylinder(d=magnetDiameterOversizedFor3dPrinting,h=magnetHeight+0.3,$fn=20);
-                
+
                 hull() {
                     translate([-(magnetDiameterOversizedFor3dPrinting)/2-magnetInset,0,0])
                         cylinder(d=magnetDiameterOversizedFor3dPrinting-1.4,h=magnetHeight+0.3,$fn=20);
                     translate([0,0,(magnetHeight+0.3)/2])
                         cube([0.1,magnetDiameterOversizedFor3dPrinting+0.4,magnetHeight+0.3],center=true);
                 }
-                
+
                 translate([-(magnetDiameterOversizedFor3dPrinting)/2-magnetInset,0,0]) {
                     difference() {
                         cylinder(d=magnetDiameterOversizedFor3dPrinting+3,h=magnetHeight+0.3,$fn=20);
@@ -230,27 +246,27 @@ module magnetic_fixation_pocket() {
             cube([magnetDiameterOversizedFor3dPrinting,1,1],center=true);
     }
 }
-            
+
 module bottom_fixation(pos_y) {
     layerForBridging=0.3;
     cutoutbelow=3.5;
     union() {
         translate([tapeXcenter,bodyHeight-1,pos_y])
                 rotate([-90,0,0])
                     cylinder(h = 2.1, r=6.0/2, $fn=20);
-        
+
         translate([tapeXcenter,-0.1,pos_y])
                 rotate([-90,0,0])
                     cylinder(h = bodyHeight+1, r=3.5/2, $fn=20);
-        
+
         //old pocket below feeder for magnet
         *translate([tapeXcenter,cutoutbelow,pos_y])
                 rotate([90,0,0])
                     cylinder(h = 10, r=6.0/2, $fn=20);
-        
+
         //chamfer
         *translate([tapeXcenter,0.3,pos_y])
                 rotate([90,0,0])
                     cylinder(h = 0.3, r1=6.0/2, r2=6.3/2, $fn=20);
     }
-}
+}

sFeeder_batch_export.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+for fdrs in 2 4 6 8; do
+	for tpw in 8 12 16; do
+		echo "Number of feeders:  $fdrs, Tape Width: $tpw [mm]"
+		openscad -DbankID=-1 -DtapeWidth=$tpw -DnumberOfFeeders=$fdrs -o stl/sFeeder_${tpw}mm_${fdrs}ganged.stl sFeeder.scad
+		echo -e "\n"
+	done
+done
+
+openscad -DbankID=1 -DtapeWidth=8 -DnumberOfFeeders=8 -o stl/sFeeder_8mm_8ganged_1bankID.stl sFeeder.scad