Messages

5261

LazyCam (Beta) / Re: pockets messing up

« on: December 19, 2009, 03:50:04 PM »

RC,
Snow.....my opinion nowdays.......WHAT GOD PUT ON THIS EARTH LET HIM TAKE IT AWAY! 
So we we got the first round of snow shoveled. Some requests are not answered! 

You may want to increase your unit precision in CAD and  then you will see that the radius is .0625.
I will post what i did to make it work.
RICH

5262

Show"N"Tell ( What you have made with your CNC machine.) / Re: MODEL 629 S&W MAGNUM

« on: December 19, 2009, 03:17:57 PM »

Macrel,
Have a link to one that gets into the detail? I looked at some that show the finished work but none that i looked at gave very specific details on how they did some of the tasks.
RICH

5263

LazyCam (Beta) / Re: pockets messing up

« on: December 19, 2009, 11:54:48 AM »

I want to look at and try try a few things with your file.
It will be later on today. Snow won't let me open the door........ so need to do a few things first before i can play.
It will pocket!

RICH

5264

LazyCam (Beta) / Re: pockets messing up

« on: December 19, 2009, 11:11:51 AM »

There is more than one way to get the pocketing done. But attach the DXF as RC suggested.

RICH

5265

Show"N"Tell ( What you have made with your CNC machine.) / Re: MODEL 629 S&W MAGNUM

« on: December 19, 2009, 10:46:48 AM »

Marcel,
I am not that familar with the specifics of the button or the different techniques of using it. Some say the press rotates the button  when pushed through and others say they let the barrel spin when the button is pulled.

I don't know if i can even make the button but i got time to find and research options. 
 
All part of the hidden challenges in doing the model. Hmm...... like the 108 TPI threaded portion ( Think i will cheat on that one!). The cut depth is almost not practical. 
Currently getting  rotarty indexer done for the lathe spindle. I got to admit that there is a learning curve associated with this one.
RICH

5266

Show"N"Tell ( What you have made with your CNC machine.) / Re: MODEL 629 S&W MAGNUM

« on: December 18, 2009, 07:32:37 PM »

Thanks for the suggestion. You still need to twist the cutter as it goes down the barrel. The groove will be about .003" deep. That's a realy hard push!

If i can get the lathe spindle down to about 5 rpm i can fix the barrel to the carrage  ( instead of line boring something i will be scribbing a wide line ) and mabe use a G32 command to send the carriage down the lathe bed at 90 or 100 ipm. That gives  a 1 in 18" twist approx.

 I would do about .001" cut per pass ( or less ). So three passes per groove and there are 5 grooves. After passes for groove one are done, i would index the cutter or barrel 72 degrees and do the next groove.

Sounds  a little wild, but if it doesn't test out then i will make a jig and hand do it. The jig  only needs to be some 8" long. ( the jig and reamer for the 50 cal rifle took up 12 linear feet).

RICH

5267

General Mach Discussion / Re: Turn Threading working at last

« on: December 18, 2009, 08:55:10 AM »

Hood,
Thanks for the posting as it has some of the features that neither of the other ones have and is is deffinately an update to the original one that comes with Mach. Don't you like the the Test button!

QUESTION:
Can you define the M34, M35,M36 cut type? Do they relate to Flank, alternate Flank, Back flank cutting?

INFO for OTHERS: The infeed method is just a different way of calculating the threading passes and info about it is somewhat cover in the Threading on the Lathe write-up. I will update the wirte up for this and also post the wizard in members docs. 

RICH

5268

General Mach Discussion / Re: Turn Threading working at last

« on: December 18, 2009, 07:43:00 AM »

Here is the link to that threading wizard:
http://www.machsupport.com/forum/index.php/topic,2050.0.html
Info on both threading wizards can be found in the Threading on the Lathe write up.
 
RICH

5269

General Mach Discussion / Re: Peck Drilling macros for the Lathe

« on: December 17, 2009, 07:54:26 PM »

Tried the macros on the lathe and they are working fine.
The M831 is realy nice when you are at some of the feedrates i have been trying and saves a lot time.
Thanks again,
RICH

5270

Show"N"Tell ( What you have made with your CNC machine.) / Re: MODEL 629 S&W MAGNUM

« on: December 17, 2009, 02:23:27 PM »

Nahhhh.....,
Got to do it, ED. My buddy, a long time ago, made his 50 cal flint lock, hand drilled and rifled it. Do you know how lond it takes to drill a 48" long piece of metal with a hand operated drill? Good grief i was down his basement doing some of the rifling and talk about a boring job. stroke...stroke ....stroke ......for ever!
RICH