diff --git a/README.md b/README.md
index 6936fec..804ec2f 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@ experiment repo for knitting punch cards
 
 initial test.scad is by [Dr. Laura Taalman](https://mathgrrl.com/hacktastic/2019/05/punch-card-knitting-machine-patterns-with-openscad/). thx! 
 
+![](punchcard.png)
+
 how to use:
 1. modify the "patterndata.scad" file (edit the 0's and 1's)
 2. open test.scad in openscad and render it