First and most important mod is to correct the belts path and reduce mechanics stress and little distorsion of the prints. To solve this I made simple back belts holder and some thickness for ball bearing.
In the video below I explain the problem and show the mod
You can download the pieces here: https://www.thingiverse.com/thing:2574935
After I made new version that move X endstop to the back of X cart. In this way I free the front of X cart to install what do you want. Also I made a back led holder. You can see in video below
You can download the pieces here: https://www.thingiverse.com/thing:2698651
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