Thread: Conundrum Curiosity Complex.

Originally Posted by bluesman7

" I'll give you one thing.. you have a unique grinding set up!" MileMarker60

"Victor's grinding is something out of the nutty professor. Had anyone told me about it, I'd have thought that would never have worked. But the results are impeccable" Bruno

I fit right in here.

Bluesman7: I'll show you mine, if you show me yours! Lol. Give me a minute to dig up my threads containing my "off the rails" ideas, and I'll add them to this reply...

http://straightrazorpalace.com/brush...tml?highlight=

http://straightrazorpalace.com/works...tml?highlight=

This next one... staring at the fine, nearly gone etch of a razor through a 5x eye socket type loupe as I picked away microscopic pieces of resist media FOR HOURS nearly drove me insane. Lol. It was half rant, half showing off some ways I've improvised regarding restores.
http://straightrazorpalace.com/works...tml?highlight=

http://straightrazorpalace.com/works...tml?highlight=

Here, I was spit-balling for improved lighting.
http://straightrazorpalace.com/misce...tml?highlight=

Regarding building lather. And I still lack what would be needed to make such vids.
http://straightrazorpalace.com/begin...tml?highlight=

Hehe, slightly off topic, but another example of my mindset .
http://straightrazorpalace.com/conve...tml?highlight=

Sadly, this thread didn't catch on...
http://straightrazorpalace.com/begin...tml?highlight=

I think that's about it for things that relate to the general topic of this thread.

The timing of something such as a conveyor belt and adjusting saw speeds wouldn't be too difficult. An RPM counter would also be beneficial, because then you could accurately determine your feed rate and saw speed. adjusting speeds wouldn't be too difficult to achieve if you want to stay in the same gear on the bicycle. Just look at how the bicycle changes speeds, that's the easiest way without involving electronics and a VFD, which would defeat the entire purpose of this exercise. If you're going to use rubber belts instead of chains, check out spare parts for drill presses (at least older models) would have a stepped pulley with 3-5 slots you move the belt into. However, all of this will be moot if you don't investigate a cost effective mounting system. Steel/aluminum tubing would probably be easiest to bolt together, but welding would be stiffer...

Agreed. An RPM counter did occur to me, as well. VFD = variable force drive?? I dunno.

I wouldn't mind shifting gears on the bike, but have to decide how I will link it to the machine. I can either remove the tire from the rear rim, then link that via a large enough belt. Or I can add a sprocket to the machine as the first link, switching over to belts from there (using the wheels already at my disposal).

Currently, I don't have anything to build a mounting system from. We have several pallets starting to rot awayn waiting to be used for a project when me & the wife feel like messing with 'em. But those are likely not a good choice for this. There are piles and piles of scrap pipe & other materials at my work from the maintenance department fixing, replacing, and retrofitting equipment every day. I wonder who's leg I'd have to hump to get permission to take some of that off their hands?? It will (eventually) be loaded onto a semi for recycling, but these bins & pallets full of scrap tend to sit around for months or years before they send it out.

An important note about the mounting system. One of the few things I remember from 9th grade shop class: the triangle is the strongest shape. Even without welding, a structure can be very strong.

not an engineer by any means but i would think that a heavy fly wheel would be needed to carry enough energy to handle that much resistance.

I, too, am not an engineer by any means. Wouldn't high enough RPMs compensate for less mass in the drive train? So long as we aren't just ramming a piece of lumber into the blade, anyway...

Later, I'll have to post some pics of the wheels I have thus far. For now, I'll leave you with some works by other people that have been part of my muse.

https://youtu.be/MegM0oKWCKs

https://youtu.be/kvQVwR8DKU8

https://youtu.be/3PMBf1SGVn8

https://youtu.be/RnxinyxHlAw

Anything human powered is going to be fractional horse power. A person can manage one or so hp for short periods, but you won't be able to do anything else while putting out that much power.

That doesn't sound like much of a can-do attitude! And if I had a formal education in this sort of thing, I could more adequately explain why I think this is feasible.

Just break down how a bicycle can get a human being moving so fast. Pedals turn a sprocket that turns an even smaller sprocket attached to a big wheel, moving really fast! No remove the wind resistance, and some of the friction (until you begin to cut, that is...) because you will be mounted on a stationary contraption with lubed up at all the necessary places.

Originally Posted by bluesman7

Anything human powered is going to be fractional horse power. A person can manage one or so hp for short periods, but you won't be able to do anything else while putting out that much power.

It's hard to maintain fine hand eye coordination when you're pedaling like mad with a heartbeat of 180 bpm

Amazing! I learned something today. the second video didn't seem to have any kind of fly wheel at all. (i still think i'd use one so i could coast every once and a while though ).

The Shakers of the US invented, patented, and sold a human powered tablesaw a long time ago. It was called a Barnes Treadle Saw.
You can probably download the designs.

Oh and a quick search came up with this

https://www.youtube.com/watch?v=JXpn2ibxm88