This video illustrates that investing in a Diablo saw blade for your printers aluminum custom t-slot extrusions can give you that extra flat surface for making joining 90 angles which are so important for linear rails and overall fitment and precision.

This will also come in handy when we learn how to create a high quality 3d printer from scratch using the finest materials.

Right now the blade is $40 OFF! 6/10/2018
https://amzn.to/2sX6e8n