diff --git a/docs/machines/3DPrinter/Step by Step Assembly.md b/docs/machines/3DPrinter/Step by Step Assembly.md
index 741911330065ed314db3b6fd8928c87763eba964..14188626a0815c86a6ab3723e9a35f2051a512cd 100644
--- a/docs/machines/3DPrinter/Step by Step Assembly.md	
+++ b/docs/machines/3DPrinter/Step by Step Assembly.md	
@@ -8,7 +8,7 @@ The build instructions below are divided into two parts, namely pre-assembly and
 
 | Button Head Cap Screw (BHCS)  | Socket Head Cap Screw (SHCS) | DIN 433 Washer  | Teethed Idler Pulley |
 | ---- | ---- | ---- | ---- |
-| <img src="pictures/hardware_smooth_idler.png" width="250" /> | <img src="pictures/hardware_shcs.PNG" width="250" /> | <img src="pictures/hardware_washer.png" width="250"  /> | <img src="pictures/hardware_teethed_idler.PNG" width="250" /> |
+| <img src="pictures/hardware_smooth_idler.PNG" width="250" /> | <img src="pictures/hardware_shcs.PNG" width="250" /> | <img src="pictures/hardware_washer.png" width="250"  /> | <img src="pictures/hardware_teethed_idler.PNG" width="250" /> |
 | **BHCS** have a button shaped head with a hex slot and require an allen wrench | **SHCS** have a cylindrical head with a hex slot and require an allen wrench | Thin precise washers that are used as spacers between idler pulleys | Teethed idler pulley has free rolling bearings and the toothed side of a timing belt moves on it |
 
 | Smooth Idler Pulley | Drive Pulley | Heatset Insert | Set Screw |
diff --git a/docs/machines/3DPrinter/pictures/hardware_smooth_idler.png b/docs/machines/3DPrinter/pictures/hardware_smooth_idler.png
index f6ac17ab3da1b059d6717c09052935bf2dade354..52ad3c2d8fed2dd007af2b9dc90cf97dd13414ab 100644
Binary files a/docs/machines/3DPrinter/pictures/hardware_smooth_idler.png and b/docs/machines/3DPrinter/pictures/hardware_smooth_idler.png differ