add images and update CAD from hdpe build

README.md

@@ -6,21 +6,23 @@ The goal is to provide a set of components from which most other automation equi
 
 ## Machines Using RCT Gantries
 
-[Mother Mother, a generalist](https://gitlab.cba.mit.edu/jakeread/mothermother)
-[Claystack, a ceramics 3d printer](https://gitlab.cba.mit.edu/jakeread/claystack)
-[the Madison Park Vocational Machine, for high schools](https://gitlab.cba.mit.edu/jakeread/mpvmachine)
+[Mother Mother, a generalist](https://gitlab.cba.mit.edu/jakeread/mothermother)  
+[Claystack, a ceramics 3d printer](https://gitlab.cba.mit.edu/jakeread/claystack)  
+[the Madison Park Vocational Machine, for high schools](https://gitlab.cba.mit.edu/jakeread/mpvmachine)  
 
 ## Usage 
 
 This repository should help you figure out how to build your own axis: it contains some explanatory drawings, videos, as well as CAD files and Bills of Materials for various design elements. 
 
-A typical machine-wide workflow is described [for machineweek, at this link](https://gitlab.cba.mit.edu/jakeread/machineweek-2018). 
+A typical machine-level workflow is described [for machineweek, at this link](https://gitlab.cba.mit.edu/jakeread/machineweek-2018). 
 
 ## Gantry for NEMA23 Motor, 0.375" HDPE
 
-![RCTN23-0375HDPE](images/RCTN23-dwg.png)
+![RCTN23-0375HDPE](images/RCTN23-hdpe-img.jpg)
 
-[RCTN23-025ALU Fusion CAD File](cad/RCTN23-0375HDPE_v2.f3d)
+![RCTN23-0375HDPE](images/RCTN23-hdpe-dwg.png)
+
+[RCTN23-025ALU Fusion CAD File](cad/RCTN23-0375HDPE_v5.f3d)
 
 Type | Size | QTY | Where Used | McMaster PN
 --- | --- | --- | --- | --- 
@@ -39,9 +41,11 @@ Bearing Shim | 8mm ID x 10mm OD x 1mm Thick | 38 | Roller Separation | 98089A381
 
 ## Gantry for NEMA23 Motor, 0.25" Aluminum
 
-![RCTN23-025ALU](images/RCTN23-dwg.png)
+![RCTN23-025ALU](images/RCTN23-alu-img.jpg)
+
+![RCTN23-025ALU](images/RCTN23-alu-dwg.png)
 
-[RCTN23-025ALU Fusion CAD File](cad/RCTN23-025ALU_v49.f3d)
+[RCTN23-025ALU Fusion CAD File](cad/RCTN23-025ALU_v51.f3d)
 
 ![](video/SEQ-fusion-parametric-enc.mp4)