What a treat to watch a master as work. There are so many nuggets of information we can extract by watching your every move. So deliberate and efficient. Thanks for sharing. Can wait to watch all your channel. Joel....
Super ! I thought you had to go like 5000 to 6000 rpm for hard turning ? @Solid Rock Machine Shop Inc. Have you tried a clip on mic (for sound) ? That way we could hear you more clearly and filter out 90% of the shop noise and you don't have to yell over the machine noise ?
@@SolidRockMachineShopInc Awesomeness ! I'm really enjoying your videos and learning a lot , real wealth of information there THANKS So MUCH for making these ! (Hope your patents an'all that go well). The US market is very worth while IMO for IP.
I really enjoyed the metrology hints. You might want to consider an eventual close up when you are doing cutting. Start wide and push in as the cut continues. I helps give the video flow and some of us weirdos out there really like to see metal getting cut. All in all a really nice video.
Thanks for the advice, we're trying to improve on the videos as we go so maybe in the later videos you may see what you're talking about. Others have mentioned the same thing.
Hi Steve. I've machined quite a few dowel pins but always suffered with insert/brazed carbide and small import machine. I have a bonded diamond plate that I can touch up edges with that helps get me by. Maybe I'll make some purpose collets and give CBN or ceramics a try, sometime. Thank you very much for sharing your methods, Cheers.
Hi sma11, You're welcome. The ceramic inserts I use cost a little over $3 a tip, CBN is about $25 a tip. Both cut better and freer than carbide. Let me know if you try ceramic or CBN they are not created equal and I can tell you what works best in my experience. Thanks for commenting Steve
Hello Steve! I have also used dowel pins for many purposes, they are excellent stock... Never thought of using the mill like this, may come in useful some day! I am going to buy the CBN inserts You recommended in the chuck video and try them for this purpose as well. So far I have been fairly successful turning these with sharp flat triangular P15 carbide inserts. They are very inexpensive, and if You get the feed/speed right they have reasonable a lifetime if the cut is smooth. I usually do the finish cut using the 1/2 method, that is take 1/2 the remaining cut, mike it, compensate and do the final cut to spec. Rubbing seems to quickly destroy the edge. I usually make them slightly + and then lap the final measure with Autosol brand chrome polish. Works better than other methods I have tried, the grains first seems to cut aggressively for a few seconds and then break down giving a fine polish. Repeat as necessary. Was recommended this method from a manufacturer of 4 mm precision linear bearings for final fitting to the rods, worked like a charm.
Hi Erik, You're timing is good. We are working on our next video and will be making a low profile sine plate for the mill. We are going to use 1/4" dowels for the measuring rolls. Steve
Could you just use the auto quill feed like to keep the cutting consistent? Us new kids dont have near the hand feel for cutting by hand that you old timey masters have.
Hi Flinstone, We are happy you are enjoying the videos. The stringy chips that come off the pin while hard turning cool off as fast as they heat up. Still, I should have brushed them away with my steel rule to be on the safer side. Thanks for watching and commenting. Steve
Hi meocats, The insert I am using is ceramic. It is a Kyocera TPG321 with a PT600M coating. It has a positive geometry with a .015" nose radius. It cuts very free with little push off pressure so the stick out was not a problem. You are correct, I should have said CBN (generic) rather than Borazon. Borazon is a brand name of CBN.
You must be referring to the others in the eng group right Steve? I wouldn't make a mistake like that.... Great videos, thats a good lookin shop you have
What a treat to watch a master as work. There are so many nuggets of information we can extract by watching your every move. So deliberate and efficient. Thanks for sharing. Can wait to watch all your channel. Joel....
Thanks for the kind words Joel.
Steve
Nothing better than a mill for small parts like that. Been doing it that way for 35 years.
I use the mill like this often too.
Steve
Super ! I thought you had to go like 5000 to 6000 rpm for hard turning ? @Solid Rock Machine Shop Inc. Have you tried a clip on mic (for sound) ? That way we could hear you more clearly and filter out 90% of the shop noise and you don't have to yell over the machine noise ?
We have the clip on mic in our newer videos.
Steve
@@SolidRockMachineShopInc Awesomeness ! I'm really enjoying your videos and learning a lot , real wealth of information there THANKS So MUCH for making these ! (Hope your patents an'all that go well). The US market is very worth while IMO for IP.
I really enjoyed the metrology hints. You might want to consider an eventual close up when you are doing cutting. Start wide and push in as the cut continues. I helps give the video flow and some of us weirdos out there really like to see metal getting cut. All in all a really nice video.
Thanks for the advice, we're trying to improve on the videos as we go so maybe in the later videos you may see what you're talking about. Others have mentioned the same thing.
Hi Steve.
I've machined quite a few dowel pins but always suffered with insert/brazed carbide and small import machine. I have a bonded diamond plate that I can touch up edges with that helps get me by.
Maybe I'll make some purpose collets and give CBN or ceramics a try, sometime.
Thank you very much for sharing your methods,
Cheers.
Hi sma11,
You're welcome. The ceramic inserts I use cost a little over $3 a tip, CBN is about $25 a tip. Both cut better and freer than carbide. Let me know if you try ceramic or CBN they are not created equal and I can tell you what works best in my experience. Thanks for commenting
Steve
Hello Steve!
I have also used dowel pins for many purposes, they are excellent stock...
Never thought of using the mill like this, may come in useful some day!
I am going to buy the CBN inserts You recommended in the chuck video and try them for this purpose as well. So far I have been fairly successful turning these with sharp flat triangular P15 carbide inserts. They are very inexpensive, and if You get the feed/speed right they have reasonable a lifetime if the cut is smooth.
I usually do the finish cut using the 1/2 method, that is take 1/2 the remaining cut, mike it, compensate and do the final cut to spec. Rubbing seems to quickly destroy the edge. I usually make them slightly + and then lap the final measure with Autosol brand chrome polish. Works better than other methods I have tried, the grains first seems to cut aggressively for a few seconds and then break down giving a fine polish. Repeat as necessary. Was recommended this method from a manufacturer of 4 mm precision linear bearings for final fitting to the rods, worked like a charm.
Hi Erik,
You're timing is good. We are working on our next video and will be making a low profile sine plate for the mill. We are going to use 1/4" dowels for the measuring rolls.
Steve
Could you just use the auto quill feed like to keep the cutting consistent? Us new kids dont have near the hand feel for cutting by hand that you old timey masters have.
Enjoying the uploads, very informative.
I presume the asbestos fingertips develop over time?
Hi Flinstone,
We are happy you are enjoying the videos. The stringy chips that come off the pin while hard turning cool off as fast as they heat up. Still, I should have brushed them away with my steel rule to be on the safer side. Thanks for watching and commenting.
Steve
What kind of insert? Wnmg?
It is a 321 TPG.
think you mean boron as in cubic boron nitride. also that's quite the stickout, are you feeling lucky?
Hi meocats,
The insert I am using is ceramic. It is a Kyocera TPG321 with a PT600M coating. It has a positive geometry with a .015" nose radius. It cuts very free with little push off pressure so the stick out was not a problem. You are correct, I should have said CBN (generic) rather than Borazon. Borazon is a brand name of CBN.
You must be referring to the others in the eng group right Steve? I wouldn't make a mistake like that.... Great videos, thats a good lookin shop you have
You right Jim, I was talking about the others.