Hi Rob what I do in a case like that, as I do a bit of Gem cutting I use a very fine Diamond dust mixed with vitamin E cream that I Usually us as a polish medium I just put a dab of cream on the Shaft or may be an old bit of round HSS into a battery drill and works like a charm. I suppose it would be looked upon as a bit of butchery but it does work Beautifully.
I use a Dremel flex shaft with a 1/2" (12.5mm) hand wand and collet and was going to make one of the quick change holders for it like yours and it occurred to me that my quick change holder itself was made to hold 1/2" bits square and round alike so I tried mounting it directly in the tool holder using some soft metal shims to protect from the four grub screws against Dremel hand wand case and wouldn't ya know it works fine and saved me from having to make that holder your using and now the shaft handle is supported half the handles length and its solid as a rock, works great.
+Flip de boer You could. These pins are super hard and show no signs of wear after quite a lot of use. Very easy to open out the knurl centres. Cheers Rob
Nice job Rob. I was lucky when I found my pencil grinder barrel fit perfectly into my boring AXA boring bar holder. I use that set-up regularly when working with hardened materials. Looking forward to seeing how your tool works...
Hi Rob, very interesting to see die grinder set up. Thanks for that. Can I gently suggest that you start your video's with something happening in the video? Watching a bare bench is probably losing you potential viewers before you get to the action. Cheers. Bob.
+Justin Bell I don't want to get myself into serious trouble here, so no names, but one big one in the USA comes to mind. And unfortunately my favourite metal work one in Oz has suffered a severe case of anti social behaviour in the last 12 months. Many hi profile posters have left as a result. It's always a small group of wallys that is the problem. Pity, because forums are great places - when everyone can control themselves. Cheers Rob
I wished that I'd watched this video before purchasing a push in 2 wheel knurl from ebay, however, I can't complain as it only cost less than $20 delivered with a set of 2mm and 1mm wheels and it does a pretty good job. The scissor knurl tools are a little over my budget at around $60. I'll only use it on aluminium. Thanks for the tip on machining a shoulder on the alininium, to mount it in the chuck,works well. A bloke should buy you a beer or three.
Sounds like the pins are sized to run in a 1/4 bore. I had a quick look and some wheels are available with a 1/4 bore but most of the Chinese ones have a 6mm bore. Keep up the good work, always enjoy your videos. Mart.
+martsrods Hi Mart, Sounds about right. The original wheel width looks to be Imperial, so I suppose the pins will be as well. Strange they still make Imperial stuff like this. Cheers Rob
Once again very informative, thank you for sharing. I have been looking at those straight knurl wheels on ebay wondering if they are any good, looking forward to your demo on them.
I'm looking forward to seeing some straight knurling Rob, I gave it a go with a bump style knurling tool but the results were hit and miss, when it did worked it looked really nice. I'll have to get myself one of those scissor knurl tools, or attempt to make one
Rob, I am looking forward to seeing your straight knurling in action. I find my straight knurling work requires pre-machining the knurling diameter to fit the knurl pitch more exactly whereas the diamond knurling seems to be more forgiving on the diameter dimensions. Thanks for showing the knurl modifications, Paul
I've never noticed that tachometer before, is that new? Is there a video about it? I've been wanting to build a tachometer for my lathe, maybe that'll be when I get around to making my first youtube video.
+Rob Mckennie Hi Rob, The tachometer has been there for a long time - from when I had a variable speed DC motor conversion on the lathe. I put it back to AC due to heat problems with DC and left the tacho there. It's a cheap unit from Ebay with input from a Hall sensor, that reads a magnet pulse fron the spindle. No video on this, but it's simple to set up. Now the red button is something else again ;) Cheers Rob
You certainly seem to get a lot of mileage out of that tool-post mounted grinder, maybe a grinder like that should be my next largish tool acquisition. Could be a good excuse to beef up my compressed air system
+Rob Mckennie Those little pencil die grinders are awesome. They can do stuff nothing else can touch, including my full sized TPG in this case. The air consumption is only 2 CFM so no big compressor required. Worth every small cent I paid for it, and more. Cheers Rob
+Rob Mckennie Nice thing is it doesn't have to be a large acquisition, they are on ebay for about $20 shipped. I've been looking at them since I've watched Rob using his in several videos.
Hi Rob what I do in a case like that, as I do a bit of Gem cutting I use a very fine Diamond dust mixed with vitamin E cream that I Usually us as a polish medium I just put a dab of cream on the Shaft or may be an old bit of round HSS into a battery drill and works like a charm. I suppose it would be looked upon as a bit of butchery but it does work Beautifully.
I use a Dremel flex shaft with a 1/2" (12.5mm) hand wand and collet and was going to make one of the quick change holders for it like yours and it occurred to me that my quick change holder itself was made to hold 1/2" bits square and round alike so I tried mounting it directly in the tool holder using some soft metal shims to protect from the four grub screws against Dremel hand wand case and wouldn't ya know it works fine and saved me from having to make that holder your using and now the shaft handle is supported half the handles length and its solid as a rock, works great.
wouldn't it be easyer in the long run to make proper 6mm screw in pins for the knurler? they're probably 1/4 inch rather then 6mm. cheers.
+Flip de boer
You could. These pins are super hard and show no signs of wear after quite a lot of use.
Very easy to open out the knurl centres.
Cheers Rob
Thanks Rob I will give it a try
Regards from the UK Jack
Nice job Rob. I was lucky when I found my pencil grinder barrel fit perfectly into my boring AXA boring bar holder. I use that set-up regularly when working with hardened materials. Looking forward to seeing how your tool works...
+Fred Miller
That's a bit lucky Fred. I'm also interested to see how the knurls go.
Cheers Rob
I guess you get to eat quite a lot of wood pigeon judging by the backround sound.
+Joss Fitzsimons
I wish.
Rob
Very clever use of the high speed grinder. Looking forward to the knurling.
Hi Rob, very interesting to see die grinder set up. Thanks for that. Can I gently suggest that you start your video's with something happening in the video? Watching a bare bench is probably losing you potential viewers before you get to the action. Cheers. Bob.
+Robert Hawtin
Good point.
Cheers Rob
some forums more than others... one i can think of in particular..
+Emmas Spareroom Machineshop
Which one
+Justin Bell
I don't want to get myself into serious trouble here, so no names, but one big one in the USA comes to mind.
And unfortunately my favourite metal work one in Oz has suffered a severe case of anti social behaviour in the last 12 months. Many hi profile posters have left as a result.
It's always a small group of wallys that is the problem.
Pity, because forums are great places - when everyone can control themselves.
Cheers Rob
yeah. im not going to say either. i always got on well with many forums.. one australian one i dont post because ill get kicked down for sure..
I know what you mean Emma. I watch but rarely participate these days. Cheers Rob
Aahhhh! that reminds me of a root canal! make it stop!!
Hi which Chinese merchant do you use for the straight knurled ?
+Jack Tomlinson
Hi Jack.
This one:
www.ebay.com.au/itm/272142497760?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Cheers rob
I wished that I'd watched this video before purchasing a push in 2 wheel knurl from ebay, however, I can't complain as it only cost less than $20 delivered with a set of 2mm and 1mm wheels and it does a pretty good job. The scissor knurl tools are a little over my budget at around $60. I'll only use it on aluminium.
Thanks for the tip on machining a shoulder on the alininium, to mount it in the chuck,works well. A bloke should buy you a beer or three.
Cheers Rob, looking forward to seeing how they perform, have been wanting some straight knurls for a while, must get some!
Very informative, Rob.
Thanks for sharing!
🙂👍☕
Sounds like the pins are sized to run in a 1/4 bore. I had a quick look and some wheels are available with a 1/4 bore but most of the Chinese ones have a 6mm bore.
Keep up the good work, always enjoy your videos.
Mart.
+martsrods
Hi Mart,
Sounds about right. The original wheel width looks to be Imperial, so I suppose the pins will be as well.
Strange they still make Imperial stuff like this.
Cheers Rob
Once again very informative, thank you for sharing. I have been looking at those straight knurl wheels on ebay wondering if they are any good, looking forward to your demo on them.
Call me strange - but I prefer straight knurls to diamond pattern- thanks for the link and the video.
Pete
I'm looking forward to seeing some straight knurling Rob, I gave it a go with a bump style knurling tool but the results were hit and miss, when it did worked it looked really nice. I'll have to get myself one of those scissor knurl tools, or attempt to make one
+Ned's Head
I've never tried it, so it should be interesting.
Not a pattern I would use very often, but it can be useful.
Cheers Rob
Rob,
I am looking forward to seeing your straight knurling in action. I find my straight knurling work requires pre-machining the knurling diameter to fit the knurl pitch more exactly whereas the diamond knurling seems to be more forgiving on the diameter dimensions.
Thanks for showing the knurl modifications,
Paul
+Paul Jones
Hi Paul,
I never measure, and same for this, see latest video - it worked OK in each case.
Cheers Rob
I've never noticed that tachometer before, is that new? Is there a video about it? I've been wanting to build a tachometer for my lathe, maybe that'll be when I get around to making my first youtube video.
+Rob Mckennie
Hi Rob,
The tachometer has been there for a long time - from when I had a variable speed DC motor conversion on the lathe.
I put it back to AC due to heat problems with DC and left the tacho there.
It's a cheap unit from Ebay with input from a Hall sensor, that reads a magnet pulse fron the spindle.
No video on this, but it's simple to set up.
Now the red button is something else again ;)
Cheers Rob
good work .........greetings from Kentucky........USA.......
Great Vid
THX for Posting !!
You certainly seem to get a lot of mileage out of that tool-post mounted grinder, maybe a grinder like that should be my next largish tool acquisition. Could be a good excuse to beef up my compressed air system
+Rob Mckennie
Those little pencil die grinders are awesome.
They can do stuff nothing else can touch, including my full sized TPG in this case.
The air consumption is only 2 CFM so no big compressor required.
Worth every small cent I paid for it, and more.
Cheers Rob
+Rob Mckennie Nice thing is it doesn't have to be a large acquisition, they are on ebay for about $20 shipped. I've been looking at them since I've watched Rob using his in several videos.
I my knurling tool holder manufacturer
My my mail ID ashokatools1@gmail.com