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Wanna look at bearing? :D
McMaster-Carr

McMaster is fast and has an asinine amount of stuff, however they can be on the pricier side of things.

Mounted Bearings & Pillow Blocks - MSCDirect.com...

AWESOME! One of the less useful pulleys can be placed somewhere along the line as a tensioner to save space. If needed.

I do believe the grooves/cogs/whatchamacallems are typically used like...

I thought the idea is to handfeed? A ratchet might just work, there are ones with different spacing depending on which is valued higher, the amount of angle per step and strength. I imagine you're...

Can't really see why not...

Might convert another gentlemen to the fold!

To completely construct something truly MacGyver'ed would be pretty awesome, although you will probably peev off the lady with random bits of stuff stored floor to ceiling! :roflmao

Hahahahaha, that's great.

My father used to used that green wire for gardening, if you need more you should be able to get it from Stein's or similar gardening supply store

For coiling 20 ga wire, look up "clapton wire build", it's a popular technique that many vapers use. They will have good tips. How much wire do you have?

Could create a chalk paste and then brush it onto the stone. I've heard of people making their own chalk, could coat in different mixtures. It would be easier to control density and thickness this...

I'd say it's not going to work. Unless, you are able to imregnate the chalk to the point that it becomes like a barber's hone. That being said, some sort of binder and a solid burnishing of the peaks...

I would just see if you could cut stuff staying within the maximum velocity that is provided on the blade itself. Most likely, the engineers will just give you the labelled number or tell you to look...

As far as speeds over the speed of sound, some interesting things happen. However, most of those are only realized in jets. Without doing my own calculations and going off of the 19,500 RPM on a 12"...

So, I found something interesting and think it will be quite useful. I was thinking about actually attaching the v belt wheels to the frame of the bike. Something clamped on there with bolts and I...

You grease those wheels! Definitely beats my back-up plan of swiping parts after hours...

I think completely unique inventions have become fewer and fewer inbetween. But, I believe that is more because we have already solved almost all problems. Most problems that persist do so because of...

This is good, they all look to have the same inner diameter. A solid rod or 4 from the scrap pile in this size would do nicely. Take dimensions and stock of these wheels. It'll help if you want to do...

VFD= variable frequency drive, basically adjusts the power being sent to an electric motor, this adjusts the speed.

This are interesting concepts, but I think you can make one better.

Yes,...

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...

I am intrigued and consider me participating. My whole childhood was spent wanting to be an inventor and taking things apart to make something else.

Human powered table saw would be neat, but...