Question on couplings

[bryanrabb]

i think the main thing to worry about with mdf is properly sealing the wood (if you can call it wood) in order to keep moisture out. Wood + moisture = movement, warpage, etc. Some of the machines made from MDF on here are bad ass. Some guys just use clear poly or acrylic to seal the mdf.

[studysession]

Clear poly? Can I get that at Home Depot?

Thanks for all the advice. I have the motors, controllers and pc interface. The threaded rods and couplings and threaded guides.

Now need -
Router instead of my dremel
Metal rods and guides for the rods

My place has a lot of moister in the air. I run dehumidifier up and down stairs. 55 pints each and have to empty every day or two. If this clear poly works - then that would be cheaper solution.

[bryanrabb]

I should have been more clear. Polyurethane is available at almost any hardware store. I would get a few spray cans, and use about 3 coats to make sure you have completely sealed the wood. MDF will really soak it up. Make sure the surface is clean and dust free.

[studysession]

Is there anything wrong with using aluminum or steel tubing from the Home Depot instead of solid rods? I need to save some money.

EDIT: I have some 10 & 12mm milling bits. What router can I get that will allow me to use them in my DIY routing table? Thanks

[studysession]

I did a search on " diy router" and came up with MANY results. Not an easy thing to search to see what people are using. I want a low cost solution. I have a nice dremel but see a lot of people post saying "Don't use the dremel, use a router."

Anyway - Trying to figure it out.

[bryanrabb]

like i said. searh the fourms here for the following:
"linear slides" " skate bearings" "thk rails" "80/20 bearings"

do individual searches on the forums, not google. DIY cnc router is way too vague for here. After all, that was this forum is all about.

[studysession]

I want to know what router they use instead of dremel.... So I was searching for it. Not sure what else to call it.

[bryanrabb]

oh, i misunderstood. There are several ways to go with respest to a spindle. I am using a porter cable 690 (i think) with mounts made by K2. You can also use laminate trimmers that are a good midpoint between routers and dremels.