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Wearing a polishing plate. This looks pretty insane.
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Previously:
https://www.homemadetools.net/forum/...460#post135644
That's ingenuity. Too bad the centerless grinder polisher I am getting ready to build couldn't be as simple
After watching I noticed I relaxed my abdominals.
Да. Пивной животик тут как приспособления для шлифования.:)
Good one Slim-123Quote:
Originally Posted by Slim-123
This is completely insane
First of all wearing something around your neck The crumbs are close to moving parts of the machine
And as a bonus he’s wearing gloves
All of the unsafe features of this could be changed easily
By adding a feed tube in a discharge tube and taking the chest plate and mounting it to the machine
By doing this you wouldn’t have to even touch the machine
Jon is there a way of downloading that video so I could show it to my students in class?
Click-and-hold or control-click or right-click on the video and a menu should pop up from which you can select a download option.Quote:
Originally Posted by shopandmath
I do not know why you would want to show this to your students unless its a how not to do things lesson. For my part I would try this as I do a fair amount of polishing, all the forces are downwards so nothing is going to fly upwards and the gloves control the spin rate of the rod. I agree about the neck mounting not being desirable but I would rather a dedicated waist belt instead or even a harness.Quote:
Originally Posted by shopandmath
I think you're right about this, and it's actually going to be an unusually comprehensive how not to do things lesson. Gloves around rotating equipment, strangle risk, impaling risk, even right down to the fuzzy dangling knot end right in front of the grinder.Quote:
Originally Posted by olderdan
Allow me to play devil's advocate for a moment.
Suppose one of your really clever students says something like this after viewing the clip...
That looks like a very clever, inventive way to get the job done. Minimum set up time, self-feeding, no expensive machinery or jigs required. If he has a bunch of rods to polish, loading the next one takes virtually no time. So, shopandmath, what is your recommended way to do this task safely yet efficiently?
(Don't say mount it in the lathe and polish there. That's fraught with as many dangers as the pictured technique.)
No gloves, breakaway single thread apron neck loop, cleaner knot end. Still not sure exactly how that plate is pressed against his, ahem, lower abdomen region. Is it really just those two metal strip ends on both sides? Is there a horizontal metal strip connecting them that we can't see? Maybe eliminate the neck loop completely for a better body mounted harness-like device.
Agreed that safety concerns are a perfectly essential final step, but they can be an impediment to early stage brainstorming.
I see he has a fixed steady rest just as I do, works great when I'm looking at something closer for my failing eye's!
Those were my thoughts exactly Marv, why show students something they are better of not knowing about.
I think the gloves are present to allow the rod to turn freely in his hands as it spins. If the gloves are removed, he will still need something more slippery than human skin to allow free rotation. Hand-held rollers might work but then we're into building complex jigs to do what much of the world would regard as a hand task.
This made me wonder if he can put strips of tape on his hands/fingers.Quote:
Originally Posted by mklotz
It doesn't really look dangerous to me. The only thing I would do different is to use cotton twine for the hanger loop instead of rope so that it would easily break away if somehow it got pulled by that leather surfaced stropping wheel. It looks less dangerous to me than the common operation of using a file to break edges on a part spinning in a lathe (never hold the file by the tang and don't stand in line with it).
All files, most especially those used on a lathe, should have handles fitted. Filing on a lathe is a bit safer if you train yourself to file left-handed.Quote:
Originally Posted by Crusty
Filing left handed is a useful skill for any lengthy filing job, lathe or vise; being able to switch hands from time to time makes a tedious task less tiring.
Maybe something as simple as a bit of manly hand creme (Goldbond?) would do the trick and be less finicky.Quote:
Originally Posted by Jon
Да, конечно безопасность прежде всего.Quote:
Originally Posted by Jon
Но!! Оцените саму идею обработки. Ведь задумка отличная, а вот исполнение плохое.
That video makes me uneasy. Getting tired in a plant happens a lot when you're doing repetitive jobs. All that operator needs to do to get hurt is miss placing the workpiece between the bearings and push against the spinning grinding stone. With it spinning down, it will grab the steel plate and pull down sending his head towards the wheel. Notice that he is pressing the bearing off-center. It wouldn't take much to cause a serious injury especially if you are doing repetitive tasks.
A safer alternative would be to mount a bar hinged to the floor with the bar holding the bearings. That would give him greater separation from the wheel.
That looked like a rifle barrel he was polishing. It is an innovative way to do it so that it gets evenly polished its entire length.
Could the gloves be for heat? Polishing can create a good deal of heat.
Right idea, but having an item - the plate - around your NECK so close to the high speed polisher is an unnecessary risk. Mount the bearings close to the wheel directly to the machine - add a safety shieled top and bottom in case it JUMPS of the spinning wheel and then, I might endorse it.
Found another set of these body-mounted polishing GIFs.
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Gives me more appreciation for things that are processed that way.
Can you imagine doing the same thing (very minor thing at that) all day long? I'd go bonkers.
Dust masks and gloves but no eye protection.
I feel like much of the ideas about how to make this safer are forgetting why this work appears to be done in a less developed country in the first place...$
I was impressed the workers were using masks.