PRSa Center Leg Mod

[Gary Campbell]

Hey Guys.. Just finished adding legs to the center span of the X rails on the Bot. Due to local availability (and machineablility)I used 2 by 2 Alum tubing for the legs. 1/4" plate for the mounting bracket to the rails and a HD leveler insert and leveler from McM. Since I was there already, I decided to put on the X axis echain, as I have had the parts and have been putting it off for a couple months. Here are a few pics.
Gary

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[mitch_prest]

G'day Gary

can you tell me where ya got the chain from and just how long is the piece.. it shure looks neat and tidy the way you have it there..

mitch

[Gary Campbell]

Mitch..
This chain comes from McMaster Carr. There are many other brands out there.. Most have a chart that tells you the required length based on the travel and chain radius. This was a 6' (std) length.
Gary

[fleinbach]

Mitch, you can also get it direct from Igus at www.igus.com (http://www.igus.com) I just purchased a set for another local Shopbot. Both axis's cost $210.00 and the legth for a 60X120 table was Y car 52" and the X car is 90"

Here is another post about Echain
http://www.talkshopbot.com/forum/show.cgi?tpc=28&post=42502#POST42502

[tree]

I have placed a leg in the center of my table. I started noticing when I was resurfacing that it always removed less in the center. My fix was just some wood and an small machine leveler. works great..... Im just not gonna take a picture cause its a little embassing... lol


Brian