MGN12H crappy linear rail bearing blocks

What’s more sensible than spending $9USD on a basic, possibly non working chinese no-name bearing block?

……..Spending hours and a few quid trying to do ’em up!

Parts I’ll need…

• 3/32 Drill Bit (or possibly 2.4mm if it needs some play) …………..[edit, turns out a 2.4mm is too small! Looks like 2.5 is the go]

• 3/32 Ball bearings (bound to loose a few)
• Something to drill with
• something to clamp down the carriage without damaging it

After a few minutes with the calipers and Tinkercad, I give you……….

V Slot Wheels / Bearings – Highly recommended Upgrade

Wheels – Bearings – they’re critical, load supporting and a highly recommended, immediate upgrade for your printer….only 6 are critically needed – 9 will upgrade the Y and X axis – if you’re feeling flush, 15 will do the whole printer!

The V slot wheels on the Y axis that came with my Duplicator 9 were a bit squished in transit…I tried to squish them back together but it quickly became clear that these weren’t quite circular and had an eccentric wobble that transmitted up to the Y build plate.

I tried a few times to use the printer, but the build plate would quickly sag at the rear, making the plate off level to the point where it interfered with and hit the rear microswitch!

 

I guess I needed new ones

You can really see here that the bearings have just popped out