Uconduit - Move Z-axis motors and redesign Y-axis pulley mount
Description
Was Having Problems With The Z-Axis Thread Rod Couplings Coming A Little Loose, Then The Threaded Rod For That Axis Would Drop Out Of The Coupling. Most Of The Time It Was Due To The Coupling Cracking A Little Between The Motor Shaft And Threaded Rod. Tried A Few Times To Reprint The Couplings. After A While I Thought A Metal Coupling Would Be Stronger Than The Plastic, But That Would Not Completely Guaranty The Threaded Rod Would Not Come Off. I Figured If The Rod Continues To Fall Down, Maybe The Motor Would Be Better Suited On The Bottom Of The Printer. By Moving The Motor To The Bottom, With A Little Help From Gravity The Rod Should Never Fall Up. Printed Two More Sets Of Corner Motor Mounts So I Could Mount Them At The Bottom Without Having To Take The Entire Frame Apart. Just Left The Old Motor Mounts In Place At The Top, And Add Two More Motor Mounts At The Bottom Of The Printer (See New White Motor Mounts). Purchased Two Metal Couplings, Flipped The Motor/Threaded Rod Assembles To Bottom Of The Printer, Inverted The Z Axis Motor Direction In The Marlin Software. That Should Have Solved All My Problems, But During The Removal Of The Top Mounted Motors, I Noticed The Y-Rod Mounting That Held The Belt Pulley Was Bent Off To The Side (See Picture Of Old One). Most Likely Warped The Plastic By Being Over Aggressive On The Belt Tension. Decided To Redesign Those Pulley Mounts By Making Them Stiffer Somehow. The Y Axis Rod Holder Was Right Up Next To Where The Original Z-Motors Were Mounted. Used The Old Unused Motor Mounts To Anchor The End Of The Y-Axis Pulley. Now The Pulley Is Bolted To A Block Which Mounts To The Conduit Frame And Is Held In Place By Bolting It To The Old Motor Mounts In The Corner (See New Red Parts In Picture). *** Will Publish More Pictures When It Is Completely Back Together And Printing ***
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