There is a thin bridge at the top/back of the cable groove on the printed part - I assume it is just there to keep things in place while printing and is supposed to be clipped off in order to insert the cables? (The bridge is visible in the pictures of the printed parts at the beginning of this section, but is clearly not present in the photos for this step.)
The M3x25 screw used to finish securing the fan (indicated by the red circle) seemed far too long. I used an M3x20 screw instead, which fits nicely and doesn’t protrude from the other side of the hex nut.
It took me just over 40 minutes to complete this section, so a time estimate of 45-50 minutes sounds about right.
Make sure that both idler are still present in the idler gear.
Should this read “Make sure that both needle bearings are still present in the idler gear.”?
This should go without saying, but it may be worth adding a note to be careful not to over-tighten the filament sensor mounting screw as it can damage the PCB.
I’ll second the 60 minute recommendation. It took me just over 50 minutes working slowly, carefully, and inspecting everything as I went, so rounding up to an even hour seems reasonable.
Not a big deal, but it seems like it would be easier to install the trapezoidal nuts immediately following the linear bearing and endstop installation (before Step 6 - X Smooth Rods). It’s much easier to manipulate and orient the idler/motor end pieces to insert the required M3 hex nuts before everything is assembled into a heavier, more unwieldy unit.
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