Ender 5 Bed Support

thingiverse

Hopefully not every Ender 5 owner will need this part, but mine definitely did. I noticed the bed would jump up and down rapidly when the nozzle would pass by halfway towards the front. This had show-stopping effects on those prints. With the bed supported on only one side and the manufacturer skimping on thin sheet stock for the bed frame, the whole assembly behaves a bit like a diving board. Even leveling on the front two corners has to be done very gently. It is easy to mislead yourself by having your leveling shim push the bed down and make you think you have a good gap when in reality, the bed springs back up to touch the nozzle when you pull the shim out. So we made this bracket that we glued to the z-axis bearing housings. In the absence of good hard epoxy, and in haste, we used hot glue for mounting which one would think would be too 'rubbery' or 'bouncy', but it worked very well. Place glue at the two bearing interfaces and the three bed frame interfaces. The bed no longer wobbles and we are back to full steam printing at 60+mm/sec like the Ender 5 cube design was intended for! I realize that not everyone would like to glue things to their printer and may want a bolt-on version, so I will be modifying this for that mounting method as soon as I can.