From 30efd821644518918ec51d34d73e46add4376ee6 Mon Sep 17 00:00:00 2001
From: Ruben Castro <rcastro@mit.edu>
Date: Mon, 10 Jun 2019 13:37:27 -0400
Subject: [PATCH] Update README.md

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 README.md | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 22bcf2d..fa2d81d 100644
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 ## uSSM #3 
 
-![img](images/jaws.jpg)
+![img](images/ussm3_chassis.jpg)
+
+Theres a few new criteria that ussm-3 aims to achieve:
+- Manufactured only using simple shop tools, PLA 3d printers, and a standard bed size (24'x 24') laser cutter. 
+- Pulling force of around 600N
+
+In order to be laser cuttable, acryllic and delrin were the main two materials considered. Delrin was the go to option to avoid shattering.
 
+To actuate, the following adapted gantry system: [gantry](https://gitlab.cba.mit.edu/jakeread/rctgantries) along with this beam design: [beam](https://gitlab.cba.mit.edu/jakeread/rctgantries/tree/master/beams) for rigidity.
 
 
 
-- 
GitLab