The electric wheelchair I've automated has "issues" with changes in direction. These are a result of the way the non-powered wheels are...

The electric wheelchair I've automated has "issues" with changes in direction. These are a result of the way the non-powered wheels are connected to the frame. If you examine the front and rear pairs of wheels, you can see that the point of contact with the floor (which is last to change during a turn) i

BJ pop: https://www.ebay.com/itm/155476325387 BJ push: https://www.ebay.com/itm/204287982201 The problem is that some BJ pins are flush...

BJ pop: https://www.ebay.com/itm/155476325387 BJ push: https://www.ebay.com/itm/204287982201 The problem is that some BJ pins are flush mounted (i.e. control arm) and some are extrude mounted (i.e. tie rod). I have to add temporary pins and spacers to make it work. Ideal tool would be the C clamp with a screw hole on stop to mount a pin (for flush mounted pop) and a hole (for extrude mount...

I have to make some dirt cheap boards. I can lay them out single-sided. But, need to be able to mill/route the outlines to relatively...

I have to make some dirt cheap boards. I can lay them out single-sided. But, need to be able to mill/route the outlines to relatively complex shapes (e.g., donuts, concave curves, etc.) One approach is to laser cut the boards -- if the material chosen isn't too "robust" -- instead of having the boardhouse deal with this. The boards don't have to be particularly sturdy as they will be...

While my sim is running, I can do all sorts of things. Grocery shop, prowl the web, take a nap. https://xkcd.com/303/ Same idea. My...

While my sim is running, I can do all sorts of things. Grocery shop, prowl the web, take a nap. https://xkcd.com/303/ Same idea. My alternator simulator simulation (!) takes about 25 minutes to rev up, running 10 or so PPM of real time. It's nicely settled in about an hour.

I've been watching the progress of these guys... https://tinyurl.com/m3cnszx7 Somehow I have become a registered user with no effort on my...

I've been watching the progress of these guys... https://tinyurl.com/m3cnszx7 Somehow I have become a registered user with no effort on my part. Have you used Flux, or know anyone who has? I can't see how this can work or, frankly, why they haven't run out of money yet.

Anyone else run a personal NNTP server? (I can't see why unless you have multiple workstations and want to unify the experience across...

Anyone else run a personal NNTP server? (I can't see why unless you have multiple workstations and want to unify the experience across them) I do -- but only as a prerequisite for the AI that screens posts for me. (it has to be able to read selected posts to determine if the content meets whatever notion of "appropriate" it has come up with so it can sort out the stuff that I've shown a...

Well, I anticipated (and defended against!) this one: What sort of idiots do they have designing these (high value) things that they...

Well, I anticipated (and defended against!) this one: What sort of idiots do they have designing these (high value) things that they don't consider and defend against *obvious* vulnerabilities??

A little background, Making an electrostatic treatment vessel with an emulsion to be treated. First tests were with a test tube and a wire...

A little background, Making an electrostatic treatment vessel with an emulsion to be treated. First tests were with a test tube and a wire inserted in the center as one electrode. The test tube was inserted in a metal tube as the other electrode. Test have shown the emulsion has enough conductivity that the electrodes must me insulated from the emulsion. To that end we made to alumi

We have a bunch of aluminum module end-panels that I want to add lettering to. Does anybody know of a good service company that could maybe...

We have a bunch of aluminum module end-panels that I want to add lettering to. Does anybody know of a good service company that could maybe inkjet some text and maybe graphics on some small (about 5" x 1.5") flat aluminum plates?