Dave's Wide Drum Sander Build. #11: Off to the machine shop... And the scrap bin.

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Blog entry by dbhost posted 05-23-2012 03:19 PM 2008 reads 1 time favorited 0 comments Add to Favorites Watch
« Part 10: Progress, and congress... Part 11 of Dave's Wide Drum Sander Build. series Part 12: Missed out on the machine shop, so far... »

So my pulleys came in last night, and they both are keyed. I installed the pulley onto the shaft for the motor, no biggie. Just had to tap it into place with the rubber mallet. The drum end pulley also has a keyway, but the smooth rod doesn’t. That bothers me, a LOT… I know it shouldn’t, but I am going so painstakingly carefully through this build that even that small detail is REALLY getting on my nerves…

So a few calls made in my area to machine shops. I was actually stunned. Went through the Yellow Pages app to find one and called 4 different shops. Nobody is answering. Called a fifth, and was able to get a quote for such a small job as to cut a keyway into the rod, and smooth up the ends.

The SYP plug ends I am not happy with, mostly due to the fact that I went with a metal pulley. I did try working with making a combined plug end / pulley but the first time I applied power when testing it, the side of the pulley blew out. No joy…

So the next step was to grab some S4S scraps out of the scrap bin… I sourced up enough to make 3 internal brace plugs, which are sitting in the clamps right now, which are going to be pine, I wouldn’t think the internals would take that much stress. The outers will have to be red oak. That’s what I have…

While I am at the machine shop, I am going to talk to the guy about some sort of collar / through boring of the shaft so that I can install the drum, and lock it to the shaft without epoxy. I am thinking just something that I can screw to the end plug, and then lock down with a set screw. We’ll see…

Lots of fits and starts, and the design has changed a couple of times during the build of just the drum / rotating assembly… It will be interesting to see how this whole project turns out! So far I am enthusiastic about the prospects. And somewhat fearful… This would make quick work of smoothing up end grain cutting boards, and I do love to make those!

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