Time to get back at er.
I decided just for cosmetics to paint the dust collection holes before the formica went down, had the paint wouldn’t of made a special trip to town for it. lol
Testing the rails and roller bearing for clearance and mounting option.
Came up with a box idea to fit between the main posts, gives me the option to move the rails up and down, in and out and tilt, once everything is set 4 – 4 inch heavy torx washer head screws on both ends of the box should hold everything in place quite nicely and can easily be readjusted if necessary.
Added a couple oak pieces just above and below the roller bearings. just didn’t like the way it looked with the open bearing, lol form and function. :)
Extremely happy right now, built the two bearing support boards for the gantry and clamped a board across the top to see how it would roll and I think I need to give myself a pat on the back. lol that thing rolls so smooth its unbelievable with no slop that I can tell whatsoever. Can you tell I’m smiling. :)
Here is a close up of the bottom gantry support with the bearings, Drilled holes in the bottom and tapped for a standard 3/8th inch thread. the hole goes all the way in the bearing bolt hole which is slotted up and down an extra 5/16 inch.
A 5/16×1-1/2 inch spring was loaded into the hole before the bolt threaded in, this is not to hold constant pressure on the bearing but to give all the bearing equal pressure before tightening, plus if the track ever wears a quick loosen and retighten of the nuts and all slop will be removed.
And just a couple of quick shots of both ends. Can’t wait to start constructing the gantry for real. :-)
Mama thinks I should be spending more time building her kitchen and less time on the CNC. Hmmmm BOOOO. lol Just kidding she is worth it.
My next entry might take a little longer unless I burn more midnight oil. :0
Hey thanks for stopping by and having a look! Suggestion, comments and questions are welcome
Cheers – Jeff
P. S. I’m really having fun with this!!
A Pic to help answer a question. :)
As the aluminum track wear’s, the roller bearings will need to be adjusted.
As I tried to explain in pic 20 but didn’t do a very good job :( the bottom bearing bolt hole is slotted for up and down movement, a bolt and spring are inserted from the bottom to add a fair amount of pressure to seat the bottom bearing to the track, then the bearing nut is tightened.
When the track starts to wear a quick loosen of the bearing nut and the spring will push the bearing tight up against the track again and then just re-tighten the bearing bolt again.
Hope that makes sense. lol
Getting some of the ruff components spruced up a little while waiting for some fat washer and longer bolts.
Trying to keep the tolerances to minimum, only about a 1/16” between the gantry carrier and the guild rail.
Have a great day!
-- To know the road ahead, ask those coming back.