- Joined
- Nov 16, 2012
- Messages
- 5,596
I recently made some steel leveling feet and needed a flat bottomed 1/2 in hole. I drilled it with a 60 deg drill until the point reached the proper depth and then squared the corners with an end mill in the TS using the top edge of the drilled hole as a pilot. I didn't measure the final diameter of the holes as it wasn't critical but the end mill went in smooth making four long steel ribbons.Guys I have a question.
How do you make a small bore with a flat blind bottom. I learned real quick about relief angles. I don't know if I need to grind a tool with a bunch of relief??
I made a tool called a pivot nose adapter for a rivet gun. The OD is .780" the threads are 7/16-20, and the bore is .5"x .120" deep.
The tool is supposed to set a blind rivet and allow it to act like a hinge or pivot. A local engineer friend asked me to make it for a project at their plant. I said i would try.
What is a good way of making a small bore with a flat bottom. I gave in and put a 1/2" end mill in my tail stock and cut it that way. The tail is not really rigid enough to support the end mill and I got a lot of chatter.
Here is the tool.
Here you can see the bore in question.
epanzella, my G4003G didn't come with a female square wrench; I think that wrench had been originally provided for the saddle lock bolt which is now replaced with a socket head type bolt. My two cents' worth. ---orthoI was wondering about the female square wrench myself as there is nothing on my G4003G that it fits. I guessed it must be for lathe dogs as they have square heads. I couldn't verify this as my machine came with a faceplate but no dogs. (SNIP)
Makes sense, I seem to remember seeing a picture of a G4003G with a square head saddle lock bolt. Mine has the socket head.epanzella, my G4003G didn't come with a female square wrench; I think that wrench had been originally provided for the saddle lock bolt which is now replaced with a socket head type bolt. My two cents' worth. ---ortho
Congrads on the new G4003G! I received mine 2 weeks ago. I have not had any issues with it and operation has been flawless. I changed the gearbox oil after 2 hour runin and had no issues with metal particles of any size. I did add 1/2 bottle of Power Punch Moly gear additive to the oil change. It really quited down the gear whine, running very smooth. I do like the magnet idean in the transmission although I would be weary of a very small magnet that could be picked up with cold fluid. A larger magnet would not be easily moved about.
I see some of you have made brackets to level the lathe, good show! I would suggest you bolt it to the floor for a more stable platform. Enjoy the new machine. I really am happy with mine after using a Logan 10X24 the the last 8 years. Hope to build some hunting rifles with the new unit.
(SNIP) I did add 1/2 bottle of Power Punch Moly gear additive to the oil change. It really quited down the gear whine, running very smooth. (SNIP)QUOTE] Really quieted down the gear whine? I'll have to try that next time I change oil. Every time I run my G4003G at high rpm, it makes that loud whine. Thanks. ---ortho
Where does one get this "Power Punch Moly" gear additive?
Where does one get this "Power Punch Moly" gear additive?
I found it online here: http://www.powerpunchinc.com/Gear_Oil_p/ep1-each.htm I went to a couple of regular auto parts around here and they did not have it. There is a higher end speed shop by where I work, I hope they will have it. Bob in Oregon