b2x's Greg's carriage, remixed a bit

X Carriage

Features;

• 3 LM8UU
• Centered front LM8UU
• 3 sets of extruder mountholes
• WIDE belt mounts with tensioner
• 40mm Fan mount
• front mount for carriage extension

Added feature;

• extra big bumper for X endstop

Update;

• M3 for mounting extruder and/or groovemount
• T2.5 for beltsize