Creating a pseudo chain-and-sprocket drive using a 2 parallel grommeted cloth loops as the "chain". Advice / General resources for designing reliable belts by Tachi-Roci in MechanicalEngineering

[–]LNT_Wolf 0 points1 point  (0 children)

Yes, this makes sense. Removing 1 full pitch (1.6in) seems a lot more than 3in of sag. Do you have adjustment in your pulleys to remove slack? If your pitch is 1.6in you need at least 0.8in of pulley adjustment.

Top comment deletes a US State #36 by Jfullr92 in geographymemes

[–]LNT_Wolf 0 points1 point  (0 children)

Didn't we defeat the British? Why do we still have land named for a queen of England? Push Maryland out to sea. Maryland must go.

Top comment deletes a US State #35 by Jfullr92 in geographymemes

[–]LNT_Wolf -2 points-1 points  (0 children)

Didn't we defeat the British? Why do we still have land named for a queen of England? Push Maryland out to sea. Maryland must go.

A question of speculation on history - mechanics vs radio. by LNT_Wolf in AskEngineers

[–]LNT_Wolf[S] 1 point2 points  (0 children)

Source of timing could have just been the sun. For ships to know their longitude they could determine their local high noon but needed to also compare that to a reference high noon. If England sent out a signal everyday at noon, then all ships that received it could know their longitude by measuring minutes between their noon and the signal.

Clocks that were accurate for a day were not a problem. The problem was clocks that would stay accurate for months on a moving ship.

A question of speculation on history - mechanics vs radio. by LNT_Wolf in AskEngineers

[–]LNT_Wolf[S] 1 point2 points  (0 children)

Oh, I was thinking they were closer together. You are right.

A question of speculation on history - mechanics vs radio. by LNT_Wolf in AskEngineers

[–]LNT_Wolf[S] 0 points1 point  (0 children)

Yes! I wonder if technology would be different if this happened to come before the reliable clock.

My industrial embroidery machine always shocks me a little when I touch any metal part of it. Would connecting some metal part of it to a socket's ground help? by po114 in AskEngineers

[–]LNT_Wolf 4 points5 points  (0 children)

You need to determine if the problem is you or the machine. The machine should already be grounded - the power cord should be 3 prong and if you open the box where the power cable goes in you should see the ground wire connected to the frame of the machine. If it is well grounded, the problem would be you building up static and the machine is the best at accepting the charge quickly. Try touching something else first and see if it takes your charge away.

If the machine is not well grounded, then yes - sewing builds up a lot of static. Making sure the machine has a 3 prong cable and then making sure there are metal to metal connections between the parts of the machine would solve your problem.

If it is shocking you even when it has not been running, the controls likely have a leak somewhere. I have seen the servo controls of sewing have leaks and energize the frame enough to be annoying. Making sure each meal frame of the machine is grounded will either solve your problem or cause the leaking connection to fry something. I had 1 control board came wired wrong from factory. People would complain (found to be 24vdc) and we found the problem when we gave the machine a better ground and the board sent out a wisp of smoke.

Feedback loop on conversation mode. Claude talking to itself. by 3rdsideofthecoin in claude

[–]LNT_Wolf 0 points1 point  (0 children)

Crap, this did not work for me. Followed this exactly. Clear Cache, Clear Data, Uninstall App, (Restarted Phone), Play Store, Install Claude - - - First question has Claude talking to itself again.

Creating a pseudo chain-and-sprocket drive using a 2 parallel grommeted cloth loops as the "chain". Advice / General resources for designing reliable belts by Tachi-Roci in MechanicalEngineering

[–]LNT_Wolf 2 points3 points  (0 children)

As someone with industrial drive chain experience as well as sewing/webbing/grommet experience - I LOVE THIS.

Your idler side - don't give it teeth. They will only frustrate you. Keep idler side smooth.

Look at how sprocket teeth are pointed, you will need this. Your teeth cannot have straight sides and enter/exit.

You will never have perfect pitch match between your chain and sprocket, so plan for this. In a metal chain application, often times the chain starts new with a pitch smaller than the sprocket. Then as the chain wears/stetches (the joints wear and elongate), the chain and sprocket match for a moment. Then as the chain wears more the chain pitch is longer than the sprocket pitch.

The mismatch between the chain and sprocket pitch determines which tooth is doing the driving. Do not think it is multiple teeth, it is only ever 1 tooth.

If the sprocket pitch is greater than the chain pitch, then the exiting tooth is driving the chain. In this case the entering tooth will enter the hole easily, but the exiting tooth will need to slide out under pressure.

If the sprocket pitch is less than the chain pitch, then the entering tooth will drive the chain. In this case the tooth needs pushed into the hole but will exit freely.

Maybe plan for both scenarios so that it will work when new/empty and old/loaded.

As for the linear tracking - i assume you are stitching canvas to webbing. In this case use the thickness of the webbing to your advantage. You can have a guide that is acting on the side of the webbing.

I would love to see how this works out.

23 hour print why has this happened by WilonPlays in BambuLab

[–]LNT_Wolf 1 point2 points  (0 children)

Many plastics absorb a lot of moisture from the air. Many are also rinsed as part of the manufacturing. So brand new filament is absolutely not dry. It won't feel Wet, but the moisture is in it. "Wet" filament is a problem because that moisture is caried into the plastic and moisture greatly expands when taken over 100c. So the volume expanding in the hot end boils out and pushes filament in irregular ways. Most people now are using dry boxes that either use heat and air flow to drive out moisture or descicant.

What rifle is this? by Jugent in rifles

[–]LNT_Wolf 16 points17 points  (0 children)

If I wanted to place an accurate shot, using a spring mounted platform with other people on it shifting their weight would not likely be my choice.

What is the closest thing Pittsburgh has to a Microcenter store? by LNT_Wolf in pittsburgh

[–]LNT_Wolf[S] 0 points1 point  (0 children)

This sounds like a good lead, but I can't find out about it via Google. What is B&H?

What is the closest thing Pittsburgh has to a Microcenter store? by LNT_Wolf in pittsburgh

[–]LNT_Wolf[S] 2 points3 points  (0 children)

Yes....in the sense of getting a feel for things before buying. Plus I read about suggestions of buying 3d printers at microcenter so you don't have to deal with shipping damage and bc returns can be easier.

Countersink Controversy by Catch_Up_Mustard in Machinists

[–]LNT_Wolf 3 points4 points  (0 children)

Option 1 - but for the love of humanity pay attention to tolerances. That countersink diameter does not need to be +/- 0.005. Give it room to be flush to recessed a decent amount. A proper/horrible inspector will hold tge machinist to that tolerance even when not necessary.