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Given what i'm reading, does anyone have any suggestions for where to buy metal in the SF Bay Area?

Metals supermarket works out to $1.10-$1.50/lb including cut charges for most hot roll steel....

I've recently started metalworking, and i've been calling around to get pricing for some tubing which I need for a project.

Tubing is 8' length 3" Square Hot Roll Tubing with 1/4" wall.

I've...

What is everyone paying for 6061 & mild steel?

The place i've been going to charges $6/lb for 6061 and $1/lb for mild steel.

How does this compare?

Mark

Here's the photos of the rice which was chosen and the sample after the pour - the epoxy seems to absorb into the rice, so I had difficulty in getting a flat surface on top.

Can't wait to get it...

Ok, the sample is mixed - i'll pop it out of the mold in a few hours.

Well, i'm not sure what to expect, but given how abundant rice is, it's worth a test.

Now, I also have popcorn kernels, so I may try those as well. I'll try them popped and unpopped.

I'll see...

Has anyone tried making an epoxy-rice machine base? I was going to experiment tonight. Would brown or white rice work better? I'm assuming it should be dry and not cooked beforehand.

I'm a little bit confused as far as the differences between the styles of THK rails.

Here is the summary from the 5bears website which I found helpful:

SHS (Best, 4-way loading, caged balls)...

The tarp would work - although now that i'm thinking, couldn't I just apply a coat of epoxy to the MDF? Or maybe even just some of the epoxy paint home depot sells in a spray can.

I am surprised...

I think it's great seeing what everyone has done with their X2's - I wanted to start a thread with some of the things i've built so far.

The first item which I made was an adjustable height...

The ease of mounting is one benefit - the other is that it would be quicker to assemble, and I could mount accessories on the edge of the bed such as limit switches, toolpost for vertical milling,...

What do you guys think about using 8020 sandwiched between two 3/8" pieces of steel to build an XY table which linear rails could be bolted?

I haven't drawn it out in cad, but here's a rough...