Ultimaker Original End Cups

[aaron-delia 0]

Hi all, i am in the process of building the Ultimaker original, and seen some posts that the wooden end cups of the shaft creates some unnecessary friction, i have this idea as per attached, what do you think about this idea from your experience, will i have room for a collar on the inside of the printer ?

 

 

[jhertzberg 19]

This is interesting, but clearance and adjustment could prove to be a problem. You might instead try making an end cap with less friction such as http://www.thingiverse.com/thing:54075 or http://www.thingiverse.com/thing:23835.

 

[aaron-delia 0]

Thanks for the reply, i have seen these kind of modifications and to be honest i do not like a rotating shaft to have any end friction at all, my idea is quite simple the bearing is fixed from both sides at the outer part of the bearing with screws to the wood so there is no movement at all in the bearing in and out, and then the shaft is fixed with 2 collars, one from the inside and one on the outside both collars are closed completely with the inner part of the bearing so there is no way that this can move either side. My only question is the space on the inside as i do not know the exact position of the gears on the inside, so far i did not find any 3d drawing of a complete original ultimaker so i can have a look on the inside positions so if anyone can provide me with such drawing or pictures i highly appreciate it.

Thanks in advance

 

[jhertzberg 19]

Are you making your Ultimaker Original from the Ultimaker kit? If so, the included smooth rods are not long enough to add outer collars. You would have to purchase some longer rods. Once you get to that sort of commitment, you might as well do the direct drive mod as well. In any case, you could also just fix the rods to the inner ring of the bearings with a spot of solder or glue and make a domed end cap that does not touch the rods but keeps out the dust.

 

[aaron-delia 0]

No i am building it from scratch so the shafts are still to be cut, and yes i am highly thinking to go for the direct drives while i am at it !!

Thanks

 

[jhertzberg 19]

In that case, you only need outer collars. Make sure that they don't rub the case or the outer ring of the bearing.