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It's my understanding that chrome plating is a big health hazard - thus pricey. Due to regulations, I don't think there's a local chrome plating shop in Denver anymore. My local zinc (and other) plating place has a $200 minimum. I have a Caswell zinc kit and have plated a lot of small parts...

For sure! Great idea. Initial design is looking great. Not sure if you care about OSHA and I can't remember if OSHA requires drop lugs and/or bumpers on the bridge. But, think about adding drop lugs so the crane doesn't fall if the wheel or wheel shaft fails. See the trolley you posted in...

1 more air/hydraulic Model 32 here but I'll add a recommendation for the Rogue bender as I was not impressed with JD2's customer service. I don't even remember what I wanted when I contacted them, it was years ago but obviously left a lasting impression. As far as vertical (Rogue) vs...

I semi-retract my initial impression. Just looking at basic bending/stress calcs, assuming a W10x30, you're fine*. That beam fails pretty badly for deflection with regards to cranes but that maximum allowable spec (L/600) is to ensure the trolley can climb the upslope. Allowable deflection...

Thanks for your comments. I really appreciate your time @b-dog Sure thing, overhead cranes are kinda my jam ;) I'll double check with the SE but they approved the beam. If you can post or email me calcs that would be cool. I might look at that here and let you know if I see any red flags. I...

Sweet, I'm interested to see this complete! Your math looks good to me. 30lbs/ft beam seems like it could be small for your cantilever. Have you looked at buckling? Also, consider a dynamic load under the cantilever. The force vector may not be directly inline with the web if the load...

I think some of you are seeing what you want to see. I just watched the questions and answers to the Jack, video. He responds to the second comment about the handle with an attitude because it was a dumb comment, I found it entertaining. Twice, he admits that the commenter had a better...

I would be interested in a drill bit set that only covered common SAE taps. I purchased a tap/drill case then put together a set of spiral flute taps. Now I need the drill bits but it seems like the 2 options are; buy 12 of each at a reasonable cost from Fastenal/MSC or bend over for 2 of each...

Count me in on that group and I thought I would fine more uses; I haven't touched it in years. The one posted above looks nicer than the one I have though. I have something like this: https://www.amazon.com/dp/B07ZSFH918/?tag=atomicindus08-20

Ooof, driven top and bottom wheels. Without putting too much thought into it, I think I would buy the manual end trucks and add an idler wheel to run on the bottom of the beam. Your cantilever problem is similar to the trolley wheels on a hoist. A lot of hoist manufacturers use counterweights on...

Those zoro wheels are 1/4 of the cost of fully built end trucks - I'm all for DIY but it seems like buying end trucks would be the way to go. Using 1 motor for the bridge used to be standard but is no longer common practice. However, for DIY, it might be cheaper to only use 1 central motor...

Am I reading that correctly, the span is 13' and designed to have a 12' cantilever on each side?! If you have the engineering calcs on that beam, I'd love to see it, if you don't mind posting.... I'd go with R&M brand only for the fact that it's well known. If you're going to have a long...

Mcmaster.com

Are you going to leave us hangin with that code....? o_O

Benchmark is made in China!? Fuh! Nothing on their website said either way but the internet said made in USA. But the prices were cheap so.... *shrug And yes, there's a reason I bought Weiler.... I wish I remember where i got my last cup brush, it was a rockstar.

Made in the USA China. Done and done. Thanks! Has anyone used their cup brushes? The benchmark cups are so cheap that I wouldn't even consider them unless someone has a raving review. The Weiler cups I just got, also made in the USA, throw more wires than I would have expected. Edited...

Nice choice. I have a Skat cabinet; I wouldn't mind having a better vacuum on it though. I have a 5hp compressor that goes through a DIY after cooler then a water separator then into the tank. Don't believe people who say that a water sep and an aftercooler won't work (I kid, I kid). But...

That's awesome, I've never seen or heard of such a thing.

haha I was torquing pinion nuts on a military truck axle. I work for a crane company and we've used up to 1 1/2" structural nuts which require up to 3,500 ftlbs. Totally different application/tools/methods that wouldn't work for what I needed. What is this?!

I thought some of you might enjoy this... I recently had a nut that needed to be torque'd to 1100 ftlbs and my biggest torque wrench only goes up to 600. My multiplier only goes to 1000 and, for no particular reason, I don't like using that thing anyway. I don't have nor did I want to rent...