开云体育

  1. 7x12MiniLathe
  2. Topics

Polygon Cutter

 

?
The title "Cutting with a rotating cutter" made me think you might be making a polygon cutter for making square, hexagonal, pentagonal shafts etc. You are half way there with gears on the end of the leadscrew! ?My online program RideTheGearTrain includes a simulation of the polygon cutter so that you can vary the number of cutters on the spinning cutter head, vary the gear ratio between leadscrew and spinning cutter, and vary radius to see what effect it has:
?
?
I also have ? about it, including links to other YouTube videos of actual devices.
?
In this link you may also find when you scroll down quite a bit, an indexing device bush fix that I made using a small circular saw blade and I can substitute a range of change gears. The clicker I made for this makes it quite positive and precise: A broken hacksaw blade lifts up on a tooth of the saw blade and clicks off the edge of the tooth. Turn the check back a bit and the saw blade registers nicely on the straight edge of the saw tooth. It is prevented from bending backwards by a metal support on the underside of the blade. the blade I am using has 24 teeth and it is precise enough for at least 24 divisions, 12, 8, 3, 2, 4 etc.
?
I hate the fact that if I leave this post to find the link I want, I will loose the post I have already written. It has happened many times!
?
Evan

Lathe: 1955 Boxford Model A with screw cutting gearbox, power feed with several accessories, hand tools and a pillar drill press.
Try my Free Online Gear train Software:
You enter a thread pitch or TPI and it shows you a range of gear trains and gearbox setting to use and even a scale drawing of the gear train.
It also includes calculations for taper turning by the tailstock offset method, and cutting speeds.
It includes the specifications for many thread types eg metric, UNC, BSW, and BA.
Displays drill sizes for tapping threads at any percent thread depth (with full explanations).
My YouTube Channel and Playlist about using an engineers lathe: ?
Project to build a Greek Hero steam engine and measure its power output:?
 

Evan, just select the text you have already written and copy it to your clipboard. Then when you are done looking for whatever, just come back and paste what you had written. I do it all the time. Various ways with the mouse, fingers, or commands to select the text to copy.
Ron
 

?
Hi Ron,
?
Yes I do that SOME of the time. The problem is I keep forgetting to make a copy. Other software, like text editors don't do that, so I only have to remember when using online stuff.?
?
Evan
Lathe: 1955 Boxford Model A with screw cutting gearbox, power feed with several accessories, hand tools and a pillar drill press.
Try my Free Online Gear train Software:
You enter a thread pitch or TPI and it shows you a range of gear trains and gearbox setting to use and even a scale drawing of the gear train.
It also includes calculations for taper turning by the tailstock offset method, and cutting speeds.
It includes the specifications for many thread types eg metric, UNC, BSW, and BA.
Displays drill sizes for tapping threads at any percent thread depth (with full explanations).
My YouTube Channel and Playlist about using an engineers lathe: ?
Project to build a Greek Hero steam engine and measure its power output:?
 

开云体育




You could type your message into the windows notepad, or something similar, and copy + paste into the web pages......



On 2/17/2025 1:23 AM, Evan via groups.io wrote:

?
Hi Ron,
?
Yes I do that SOME of the time. The problem is I keep forgetting to make a copy. Other software, like text editors don't do that, so I only have to remember when using online stuff.?
?
Evan
Lathe: 1955 Boxford Model A with screw cutting gearbox, power feed with several accessories, hand tools and a pillar drill press.
Try my Free Online Gear train Software:
You enter a thread pitch or TPI and it shows you a range of gear trains and gearbox setting to use and even a scale drawing of the gear train.
It also includes calculations for taper turning by the tailstock offset method, and cutting speeds.
It includes the specifications for many thread types eg metric, UNC, BSW, and BA.
Displays drill sizes for tapping threads at any percent thread depth (with full explanations).
My YouTube Channel and Playlist about using an engineers lathe: ?
Project to build a Greek Hero steam engine and measure its power output:?
 

Hi Evan et al,
When you are writing or replying to a post via the 开云体育 web interface, your message should be saved in the Drafts folder.? Unless you hit the Discard button.
You can have multiple drafts too, even on the same thread.? Draft will be saved for two weeks.??
?
I use this feature quite a bit.? e.g. Half finished reply, that I may get to later on.? Something I write but decide to think some more before hitting send.
I'm using it now <smile>.? Just realized I don't need to write a mini-manual.? Better service for me to search and provide a link to the manual.
?
Section: "7.7 Working with draft messages on the group’s website"
?
Regards,
Gary
?
?
On Sat, Feb 15, 2025 at 07:23 PM, Evan wrote:

I hate the fact that if I leave this post to find the link I want, I will loose the post I have already written. It has happened many times!
 

开云体育

Or use a real email client 8-) [gdr]

I don’t have that problem…even If I close the mail without sending it asks me if I want to save the draft…has saved my butt multiple times.

Of course my day job in IT kinda drilled it into me decades ago…


On Feb 17, 2025, at 12:36?AM, Jon Rus via groups.io <byghtn5@...> wrote:




You could type your message into the windows notepad, or something similar, and copy + paste into the web pages......



On 2/17/2025 1:23 AM, Evan via groups.io wrote:
?
Hi Ron,
?
Yes I do that SOME of the time. The problem is I keep forgetting to make a copy. Other software, like text editors don't do that, so I only have to remember when using online stuff.?
?
Evan
Lathe: 1955 Boxford Model A with screw cutting gearbox, power feed with several accessories, hand tools and a pillar drill press.
Try my Free Online Gear train Software:
You enter a thread pitch or TPI and it shows you a range of gear trains and gearbox setting to use and even a scale drawing of the gear train.
It also includes calculations for taper turning by the tailstock offset method, and cutting speeds.
It includes the specifications for many thread types eg metric, UNC, BSW, and BA.
Displays drill sizes for tapping threads at any percent thread depth (with full explanations).
My YouTube Channel and Playlist about using an engineers lathe: ?
Project to build a Greek Hero steam engine and measure its power output:?



--?
Bruce Johnson

The less a man knows about how sausages and laws are made, the easier it is to steal his vote and give him botulism.

 

?
The link to the manual is very helpful, and I had never used the Drafts button despite using Groups for years! ?I know to use it now. I had assumed it would require you to specifically save a draft, but apparently does it automatically. Good tip, thanks.
?
(Didn't get any interest in the Polygon cutter though!)
?
Evan
Lathe: 1955 Boxford Model A with screw cutting gearbox, power feed with several accessories, hand tools and a pillar drill press.
Try my Free Online Gear train Software:
You enter a thread pitch or TPI and it shows you a range of gear trains and gearbox setting to use and even a scale drawing of the gear train.
It also includes calculations for taper turning by the tailstock offset method, and cutting speeds.
It includes the specifications for many thread types eg metric, UNC, BSW, and BA.
Displays drill sizes for tapping threads at any percent thread depth (with full explanations).
My YouTube Channel and Playlist about using an engineers lathe: ?
Project to build a Greek Hero steam engine and measure its power output:?

1 - 7 of 7