[millman52]

OK Looks like I have my pics loaded in reverse order of what I intended.

Last pic. bottom row: I first made a drilling jig & clamped it to the milling machine table, to hold the rack gear parallel with the milling table for through hole drilling. This allowed me to drill a series of evenly spaced holes the length of my milling machine table travel. then unclamp the rack gear & slide it to pick up my original hole pattern & continue down the length of the rack gear. My racks are in 6' sections.

First pic. bottom row: Shows drilling in progress. You can see in the pic I have already drilled a section of holes & indexed my drill back in the last drilled hole & redy to continue the process.

4th. pic. top row: Shows the racks bolted to strap iron. I drilled & threaded the strap iron to accept 5-40 socket head cap screws. Notice there is a row of drilled holes in the center of the strap to mount the assembly to the table.

3rd. pic top row: Shows the side rail of my machine frame with a row of holes drilled for & threaded 1/4"-28 NF. This is to bolt the rack/strap assembly to the machine frame.

2nd.pic. top row: Shows rack assembly bolted to the frame rail.

1st. pic. top row: Entire front side rail assembly including; Front table frame rail, CR strap bolted to the top of thr rail for outboard gantry linear rail, & the rack gear assembly bolted on.

I wanted all these parts bolted on so they would be adjustable for fine tuning as well as easily repairable if a rack becomes damaged or worn.

If you choose to do something similar I recomend mounting the rack gear to CR strap. I tried using HR strap on the first rack/strap assembly & found the inaccuracy of the hot finished (black) strap a bit hard to keep the bolt holes in good alignment.

If you have questions on any of this, feel free to ask questions.

Neil