This only need on a wide range variable speed motors.
The cost to save motor was under $14.00 and about 1/2 hour installing. No electrical just a good tape to motor.
Most motor running on hight does not need any type of gauge. Seen more on mini lathes and mills variable speed motors. It...
I add a temperature gauge to my mini lathe.
The mini use a variable speed motor. On low speed the motor does cool very well . So need watch temperature at low speed heavy cuts.
The max motor is 105°C.
Less the temperature to outside of witch is 15 to 20°C.
I set red mark at 80°C just for a...
Over 200 letters for each size
So 6 size x 200 letters is over 1,200 letters
There is also starts , arrow, comma and list goes on.
This is for all letters I have
Dave
When I had my foundry I would start fire in the curable. Let burn till curable was above 212°F .
After start the furnace I would heat the ingots and tools in front furnace exhaust.
Would buy leather coats fron Salvation Amry store .
Used a face shield and safety glasses with welders gloves
Dave
When a lot work a tapping head in drill press.
I thinking of buying lead screw tapper fof both taps and dies.
I found you could do about 6 tapped parts per minute or 360 parts per hour in drill press.
A lead screw tapper is faster.
FYI My parts had threads both ends.
Dave
The Brown and Sharp book goes in detail for threading.
The threading uses cams for threading and tapping.
It also has thd rake angle for turn tools. This works great in engine lathes too.
Dave
A screw machine can simple to setup or very time consuming.
Unless you are do a long run over 10,000 parts avoid threading and complex setups.
2 or 3 sets cams can do most work under 3,00p parts.
I also had Trub screw machines. On machine I keep to just one set of cams. The parts just took a...