Lathe Hack and old school tool use.

[Worth1]

All gears in a set have to have the same diametral pitch to match up.
The center idler gear moves around to accommodate different gear sizes and to set your tooth clearance.

Someone did the research for me as there were too many combinations that weren't on the chart.
I cant eve begin to count all of the TPI this contraption will cut.
But still no 2 treads per inch the smallest is 3.2 threads per inch.
I new how to set the gears up for this I had no idea what the treads per inch would be.
https://www.google.com/url?sa=t&rct=...AoySUCKVJabZIw

[Worth1]

I dont want to cut two threads per inch to make threads I want that pitch to make a spiral profile on something.
Doing this by putting spinning cutters on the tool post by way of a flex shaft.

Worth

[Fusion_power]

Worth, your jangling about 2 tpi reminds me of an old and very expensive wood turning lathe that was designed to cut patterns lengthwise on a piece of wood. Instead of spindles, it made spirals. That machine was a work of art.

[Worth1]

Originally Posted by Fusion_power

Worth, your jangling about 2 tpi reminds me of an old and very expensive wood turning lathe that was designed to cut patterns lengthwise on a piece of wood. Instead of spindles, it made spirals. That machine was a work of art.

Sears made that crazy router crafter that could do all kinds of stuff.

Worth

[Worth1]

I'm so darned aggravated right now I had to walk away.
I tried to fix a mistake the easy way and made it worse.
IF I sit back everything will be okay if not it will end up in the next project scrap pile.

I need a milling machine in the worst way.
The darn tooling for one is higher than a cats back.
Plainly admitted I got in a hurry

Worth

[Worth1]

I wonder what the neighbors thought of the noise and creative profanity coming out of the garage.
Made Full Metal Jacket look tame.

Worth

[dmforcier]

Well, I know where there's a milling machine, but I don't think you want to pay the freight from ATL.

Sleep on it. It will look different in the morning.




Maybe not better, but different.

[Worth1]

The milling machine is no problem the tooling is.

I am being picky I wanted to weld this thing up with no fill in but now I have to about 1/16th worth.
Then I ground something at the wrong angle on the wrong side.
As I was using the hole saw the darn thing jumped out of the vise and got out of line.
What I should have done is took the big vise off the bench and mounted it on the drill press.
Every time I question what I am doing it is a catastrophe.
If I dont get the other side right it is trash.
I completely skipped a step during the whole set up process and didn't realize it till it was to late.
I have to put this same thing on the other side of the channel iron and it has to be perfect or it wont work.
The only way I can do this is to weld it sitting on the ways for correct alignment.

Here is the results of my mess up that darn gap on top.
Worth.
20160903_193742.jpg

20160904_000058.jpg

20160904_000104.jpg

[dmforcier]

Yah. Hole saw is wood tooling. I feel your pain.

[Worth1]

I used all of the hole saws for conduit chases in switch gear boxes they suck even though they are for metal.
Worth

[dmforcier]

I've used them on sheet metal too. They suck, period. There's got to be a better way.

[loulac]

Originally Posted by dmforcier

loulac, you invited me some time ago to comment on your vocabulary, so here goes. You used the word "effort" in a previous post talking about the stress on a bearing. A better word would have been "force". "Effort" applies an intentional application of force. If you want I can try to find the post.

Please don't waste you time looking for a former post, I quite believe you though Texans are said to have a tendency to exaggerate a bit from time to time...

Your comments on my English are always greatly appreciated, though I must say I'm now a bit overloaded with years to make full use of them

[Worth1]

Originally Posted by loulac

Please don't waste you time looking for a former post, I quite believe you though Texans are said to have a tendency to exaggerate a bit from time to time...

Your comments on my English are always greatly appreciated, though I must say I'm now a bit overloaded with years to make full use of them

I think you are doing just fine I understand everything you say dont worry about it.
If you dont understand it is my fault for not using the right words.
I always look forward to your comments and look up to you and admire your wisdom.


Worth

[loulac]

Originally Posted by dmforcier

I've used them on sheet metal too. They suck, period. There's got to be a better way.

I remember meeting that problem in the past.

I punched the center of the part and set it on the faceplate of my lathe, checking it was not off-center. Tricky with the four sliding fixations.
I drilled a hole big enough to give room to a cutting tool and brought the hole to the right dimension.

Of course there must be other ways to do it. Once I used acetylen first, then the lathe.

[loulac]

Originally Posted by Worth1

I always look forward to your comments and look up to you and admire your wisdom.Worth

Don't you think you are a bit overdoing it ? This must be your Texan touch. The point is I have been young much longer than you have.

I read your post at 10 o'clock French time, you wrote it at 3 a.m. Texan Time. Do you ever sleep ?