[blackbeard52]

Has anyone developed a three point contact bearing truck that is 12,4,8 oclock position. using skate bearings of course

[jckstrthmghty]

You should check Joes 2006 design for his z axis. I believe that's what you are looking for.

[blackbeard52]

yeah but was looking more at the sosylva type setup.....with 3 bearings contacting.

Bob

[joecnc2006]

my z-axis does have three bearings, but is only for open rail.

joe

[Bent]

I made this one. There is not 120 degrees between bearings only 110 as i leave room at the bottom for support of the rail. The slots is so i can mill this in 1 setup. Overenginered but hey every 14 min a new one drops out of the mill.

Bent

[blackbeard52]

Joe

I looked at your drawings but must have missed the 3 point truck . all I saw was an angle with the skate bearings at right angles. I will look closer.

Bent

Your truck is more like what I was looking for but it is machine intensive. I do have a friend that has a CNC mill. would you share your design or are you producing it for sale?

I have seen one on buildyouridea.com under the casting and cnc links. Pretty nice but would have to set up a casting setup.....more stuff to consider.

Bob

[blackbeard52]

Also Just to shed some light... I have just started a thread called scrapyard cnc. Just so you can see what materials I am using to put this together. I have 2 inch emt conduit. (had it already) and the bed is the side panel out of Home depot steel rack. I am supporting the rails with conduit hanger tee slot.

but more of this in the thread.

Bob

[Bent]

Here you go. I didnt draw this myself just designed it. I only have it as a solidworks part. It needs 3 bearings OD 25MM ID 10MM and it fits a rail OD 25MM.

Remember to change the zip extension to sldprt

Bent

[blackbeard52]

What version did you save this in... I have 2006

[Bent]

As i said i didnt draw it but it saved in version 2007

Bent

[blackbeard52]

Bent

Thank you for your great post. I downloaded the eviewer from solidworks and took a look...Great design. I am going to create a set and give it a try. Thanks again.

Bob