my first 2 months were filled with frustration. everything from broken belts, haywire stepper motors, non working spindles, constantly loose vwheels, crashing software, you name it i probably had an issue with it. i never once had a cutting project that didnt have some sort of issue or error
after 2 months of tinkering and fixing all the minor problems (belt tension, pulley alignment, vwheel adjustment, etc) i decided my main issues were the stock 24v spindle, the UGS software i was using was unreliable and i was having issues setting XYZ zeros consistently. i replaced the spindle with a dewalt trim router and added a metal plate to the X rail to stiffen things up, i upgraded to the 2.0 version of UGS and i started using a touch plate to set my XYZ zeros. since doing those 4 things over 2 months ago i havent had a single problem with the machine or a single messed up cut or error of any kind ***
before each time i run the machine i check the vwheels by running my fingers over them to see if they are loose and i pluck the belts to check the tension. in the almost 3 months since doing the above changes ive only had to tighten 1 vwheel that was slightly loose
*** EDIT --- after typing the above i remembered i did have an issue with the bearings on the on the Z carriage Vwheels. i had to replace the washers inside the bearings with felt washers from home depot. other than that no problems!