NO brass inserts needed on this. It uses standard M3 nuts.
Its been a while since i made these but I think both versions use 8mm X axis rods but the difference is one one version uses 8mm X rods and the other uses 10mm Y rods.
If you need a version that uses 10mm X axis rods I saw someone had remixed it on here some place.
If you like this you might like the no brass inserts X carriage bearing holder also: https://www.thingiverse.com/thing:2436180
8.5.17 8mm X, 8mm Y...Remix of https://www.thingiverse.com/thing:2437440/#comment-1465527
Modifying the XY carriage to add stability to the 8mm x axis rods. I do not like how much play there is at the hot end with the stock carriage.
If this does not fix the issue I will change to 10mm hollow bearing rods (not the carbon or aluminum crap people are using.)
Added generic belt tensioner for my belt that connects the two z steppers
8.7.17 uploaded the simplify3d .factory file with supports for the XY carriage that i created with simplify 3d for use on my 300x300mm creality cr-10 printer
The carriages use standard m3x35mm screws with lock nuts but you could get away with m3x30mm regular nuts if thats all you have available.
* The 3030 optical sensor board holder here I did not create. Just tossing up for people to modify if if does not align with the flag.
My machine does not have the standard 100mm carriage frame spacing so I made a custom optical board sensor holder. ***
8.8.17 Added Y flag with some cutouts to clear the screw nearby.
Rev. 4,1 Added 10mm XY carriage and clamp. Need to print test the 10mm version.
8.12.17 Added some stuff for a Z axis flag sensor holder that hangs from the 3030. Its not a standard hypercube evo length
* Added an X flag that is 0.5 thicker and 1mm longer to make up for the X carriage getting in the way of the flag a little. ***** I prefer this X axis optical flag to the stock one.
A user commented this was a tight fit for his X axis rods. we likem that way :) You may need an 8mm drill bit to debur the rod holes.
1/22/17 added a 10mm x and 10mm y version that someone modified. havent tested myself but will test when my hollow 10mm x axis rods arrive. ( put this on hold for a while, the 8mm rods are working fine.. my machine is basically 350x350. any bigger and 10mm rods might be better)
6.30.18 Added 2 Y carriages. 10mm Y 8mm x axis carriage with
First one named: 2.8_6.2mm_nuts_10mm_Ycarriage.stl
This one has 2.8x6.2 nut slots
2nd new one added has the biggest nut slots:
file name: widest Y10_X8_top_2.8_6.2_bot_2.85_6.3_.stl
Top nuts 2.8mm x 6.2mm, Bottom nuts 2.85mm x 6.3mm
for users with bigger nuts than mine :p
4.30.19 Will make a separate page for new 10mm "compact" misumi bearing version that I just printed. Also, if you are good with supports these can be printed upside down to make the bearing half moon print cleaner.