Thank you, I'm glad it was of interest. I have gained a couple other ideas from commenters about other ways to do this without a surface grinder. I may make another video showing that too. Thanks for sharing the video, I appreciate it!
I’m really happy with the KO Lee grinder. I have a lot to learn about what grinding wheel for the application but it’s been fun to learn so far. Thank you for the comment, I appreciate it!
I produced something similar using some cheap diamond plates, some two Harbor Freight stones and a lot of elbow grease. Testing on my surface plate I was able to get to less than .0005 which is a low as I can measure. Cant really call them precision but more than enough for a home workshop. Mine have a much higher pitched sound.
Diamond plates are another great idea. Based on a subscribers suggestion I made another set from a Diamond cup grinder and a mill. The results were very good. Check out my latest video and the “short” video to see more about it. Thanks for watching and providing the comment!
Yes, this video took off! Was really cool to see that happen and meet a bunch of new viewers. Thanks for the comment! I look forward to spending more time on your channel.
Wow, that is very perceptive! I didn’t notice that myself, but also didn’t consider or look for it. I have a new video coming out Friday when I use a Diamond cup wheel and some Norton stones. The results were amazing. Thanks for watching!
Just for people how are even more hobbyist and dont have a surface grinder, i made my first trial set using a diamond cup wheel in the spindle of my mill grinding a really worn 50 plus year old oil stone. They do the job intended just fine and give a very similar finish to a lapped one. I have since bought a diamond wheel for my surface grinder but have yet to make a new set, very little is urgent anymore after retirement 😂
I know right? It’s what I had lying around from another project and they seem to work. I ordered a set of Norton stones that I’m going to try some other techniques with to flatten them. Thanks for watching and the comment.
@@EnoRestoration 🙏 I get it. Don’t spend a bunch of money trying to prove a theory work your way up the fact that yiur honest about it says a lot too🙏 your honesty has earned you a subscriber and do not get me wrong I think harbor freight is a good alternative to things you don’t expect to use often
I've been meaning to make some stones like these, I have most of the gear too- just not enough time! I already bought a pair of commercially made diamond ground stones. haven't managed to drop them yet! hey even if these stones you made are not on the same level as diamond ground stones, I think they would be handy for an intermediate stage in scraping where bringing out the precision stones is too soon.
To make these did take quite a lot of time and it was a bit messy too. But I’m with you, these are a decent intermediate grade flat stone. I hadn’t heard of Diamond stones, I’ll check those out. That’s for the comment!
Thanks for sharing. I've been wanting to try this for a while now, but I wasn't sure what kind of wheel to use. You mentioned Lance. I think I seen him do something like this. Can't remember the channel. Can you help with finding that video? Great content, love your channel.
Lance Baltzley at www.26acremaker.com did a video on Adam Booth's channel which is also very good th-cam.com/video/sAXaSQjqAU8/w-d-xo.htmlsi=k3tF38YRTSKEW-1S
If you had ground them with a diamond wheel then they would have been precision stones. As you did it you got wheel wear, hence not truely flat. Another time use a pair of toolmakers clamps to hold the stone to the magnetic base, with just enought tension to hold it still. Use paper betwen the jaws to get a softer grip, especially if the stone has not a true square edge. Regards from Australia.
Thank you for watching and the comment. Yes a diamond wheel is the best way to do this. I was testing to see what quality I could get without the expense of a diamond wheel. Great point about the machinist clamps - I'll need to get some of those!
Would a diamond stone be too expensive for your surface grinder? It would not be a waste because it could be used for more than creating precision ground flat stones. You already have the surface grinder.
I did think of that I could buy a cheaper diamond wheel for about $250. But as a hobbyist, I was curious to learn more about how to make these stones. I ended up using a diamond cup wheel from a grinder and came out with excellent results. I’ve got a couple other videos about that process. Thank you for the question!!
Nice work. A fundamental issue with only having two stones is that as you rub them together they will/can only form a spherical surface. As I'm sure you know better than I, you need three surfaces working together to produce a true planar surface. It would be interesting to see how the pair of surfaces look with pigment rubbed between them now, and later with some use.
Looks like you’re a fan of “Foundations of Mechanical Accuracy” by Wayne R. Moore of “The Moore Special Tool Company” fame. It’s a great read and will really calibrate one on flatness.
You can get precision flat stones from three sources that I know of: (websites) 26acremaker , kinetic precision and there is someone selling them on ETSY.
Sorry to say, but this doesn't work. You need a diamond wheel. With a regular wheel, you're creating a contest where both self destroys, not getting a real flat surface.
I agree it seemed to do that on the tighter grained fine side of the stone. But even then it was very flat. The course side worked much better. Time will tell if these hold up. I appreciate the comment and thanks for watching!
The stones may end up flat more or less but that is not the whole picture. The established plane must contain only grains with truncated grain peaks in order to ensure only material that protrudes *above the surface* (and up into the stone cavities, or wise the stone will be too aggressive as all that’s been done is correcting geometry, not conditioning the planar grains. It’s been a few months since this video came out, I hope you’ve stopped using your metrology equipment for blocking out your surface grinder setups. I get you with the project c before project b before project a. Take care
@@matter9 I used the surface plate lightly to test the hinge not to block the stones. Thanks for watching and the comments! You know more than I so thanks for the insights.
It’s good content. From a TH-cam video perspective the level of your mic is way too low, so has to be on high volume to hear you. This creates a big problem when an Ad comes on! A lot of people probably wearing headphones probably left at Adbreak 1
I lapped some used Arkansas stones, against a piece of granite from a windowsill, using silicon carbide grit.. not ideal process, but they have worked really well for cleaning up damaged precision surfaces - they get that really slippery feeling when you have knocked down all of the surface projections.. might have been better to make an aluminum flat lap & charge it with diamond, future project.. learned a few things from the experiment.. or consider ebay/other cheap import diamond wheel.. I have used those for sharpening carbide but not on surface grinder. & its important to realize when a shortcut will get you something usefully better than what you have already, vs waiting for & never getting to a more ideal solution... Great video! & nice grinder.. You might be even happier with some older/used/garage sale stones..
Agreed. I have a new method coming out next week where I used a Diamond cup wheel on a mill for excellent results. And I have a few extras I’ll be selling on eBay.
I have an update video - flat stones made with a diamond cup wheel. Amazing results...! Check it out here: th-cam.com/video/yFtJiCfNZrs/w-d-xo.html
kinda give me goosebump when you put the stone on surface plate..
I agree! I was very careful. But wanted to be sure it was flat.
This is a superior video done by a superior craftsman.
Can’t believe you are doing this in your garage, this is such interesting content!
More to come!
Clever use of a common HF tool. We shared this video on our homemade tools forum this week 😎
Thank you, I'm glad it was of interest. I have gained a couple other ideas from commenters about other ways to do this without a surface grinder. I may make another video showing that too. Thanks for sharing the video, I appreciate it!
I have an update video (pinned in the first comment) that makes making this tool even easier and more accessible for those without a surface grinder.
That is a stellar grinder you have there! Frankly im surprised that they turned out as well as they did using that aluminum oxide stone, pretty cool!
I’m really happy with the KO Lee grinder. I have a lot to learn about what grinding wheel for the application but it’s been fun to learn so far. Thank you for the comment, I appreciate it!
I produced something similar using some cheap diamond plates, some two Harbor Freight stones and a lot of elbow grease. Testing on my surface plate I was able to get to less than .0005 which is a low as I can measure. Cant really call them precision but more than enough for a home workshop. Mine have a much higher pitched sound.
Diamond plates are another great idea. Based on a subscribers suggestion I made another set from a Diamond cup grinder and a mill. The results were very good. Check out my latest video and the “short” video to see more about it. Thanks for watching and providing the comment!
More than 10k views and less than 400 subscribers that’s crazy 😮 keep up the good work 😀
Yes, this video took off! Was really cool to see that happen and meet a bunch of new viewers. Thanks for the comment! I look forward to spending more time on your channel.
An acquaintance was going to do this but noticed that the adhesive between the two layers of stone had a noticeable amount of compressibility.
Wow, that is very perceptive! I didn’t notice that myself, but also didn’t consider or look for it. I have a new video coming out Friday when I use a Diamond cup wheel and some Norton stones. The results were amazing. Thanks for watching!
Just for people how are even more hobbyist and dont have a surface grinder, i made my first trial set using a diamond cup wheel in the spindle of my mill grinding a really worn 50 plus year old oil stone. They do the job intended just fine and give a very similar finish to a lapped one.
I have since bought a diamond wheel for my surface grinder but have yet to make a new set, very little is urgent anymore after retirement 😂
This is a nice idea, I'll be trying that too, thanks for the comment!
@@EnoRestoration I have to say observe usual and appropriate precautions😉
Check out my latest video where I made an arbor shaft for a diamond cup wheel. I'll be trying out your idea on some Norton stones soon.
10:30 - Chem Dip is fabulous cleaner.
Great video thanks for sharing this!
Thanks for watching! I’m already working on version 2.0 with Norton India Stones.
The fact you started with a harbor freight stone sats all that needs to be known
I know right? It’s what I had lying around from another project and they seem to work. I ordered a set of Norton stones that I’m going to try some other techniques with to flatten them. Thanks for watching and the comment.
@@EnoRestoration 🙏 I get it. Don’t spend a bunch of money trying to prove a theory work your way up the fact that yiur honest about it says a lot too🙏 your honesty has earned you a subscriber and do not get me wrong I think harbor freight is a good alternative to things you don’t expect to use often
@@genecarden780 thanks for the Sub! I appreciate it!!
I've been meaning to make some stones like these, I have most of the gear too- just not enough time! I already bought a pair of commercially made diamond ground stones. haven't managed to drop them yet!
hey even if these stones you made are not on the same level as diamond ground stones, I think they would be handy for an intermediate stage in scraping where bringing out the precision stones is too soon.
To make these did take quite a lot of time and it was a bit messy too. But I’m with you, these are a decent intermediate grade flat stone. I hadn’t heard of Diamond stones, I’ll check those out. That’s for the comment!
Where did you get them from? I'm in the market
Thanks for sharing. I've been wanting to try this for a while now, but I wasn't sure what kind of wheel to use. You mentioned Lance. I think I seen him do something like this. Can't remember the channel. Can you help with finding that video? Great content, love your channel.
The pinnacle of precision stones is Robrez with this video th-cam.com/video/DVLXsq7pi9Y/w-d-xo.htmlsi=3cxK5dwSZALIDncP
Lance Baltzley at www.26acremaker.com did a video on Adam Booth's channel which is also very good th-cam.com/video/sAXaSQjqAU8/w-d-xo.htmlsi=k3tF38YRTSKEW-1S
If you had ground them with a diamond wheel then they would have been precision stones. As you did it you got wheel wear, hence not truely flat. Another time use a pair of toolmakers clamps to hold the stone to the magnetic base, with just enought tension to hold it still. Use paper betwen the jaws to get a softer grip, especially if the stone has not a true square edge. Regards from Australia.
Thank you for watching and the comment. Yes a diamond wheel is the best way to do this. I was testing to see what quality I could get without the expense of a diamond wheel. Great point about the machinist clamps - I'll need to get some of those!
Would a diamond stone be too expensive for your surface grinder? It would not be a waste because it could be used for more than creating precision ground flat stones. You already have the surface grinder.
I did think of that I could buy a cheaper diamond wheel for about $250. But as a hobbyist, I was curious to learn more about how to make these stones. I ended up using a diamond cup wheel from a grinder and came out with excellent results. I’ve got a couple other videos about that process. Thank you for the question!!
Nice work. A fundamental issue with only having two stones is that as you rub them together they will/can only form a spherical surface. As I'm sure you know better than I, you need three surfaces working together to produce a true planar surface.
It would be interesting to see how the pair of surfaces look with pigment rubbed between them now, and later with some use.
Looks like you’re a fan of “Foundations of Mechanical Accuracy” by Wayne R. Moore of “The Moore Special Tool Company” fame. It’s a great read and will really calibrate one on flatness.
@@charlieromeo7663 Exactly so! Tho my personal efforts in regard to flatness have been lumpy, to say the least!
@@charlieromeo7663 I'll check that out too, thanks for the reference!
Great point, thank you for the comment!
Not to disagree but there are in fact four sides that you can rub together, not just two, which should eliminate the tendency to go spherical.
Does any one know where do buy such things for those of us that don't own surface grinders?
You can get precision flat stones from three sources that I know of: (websites) 26acremaker , kinetic precision and there is someone selling them on ETSY.
@@EnoRestoration buy a diamond wheel and start selling them. I'd buy them from you
Sorry to say, but this doesn't work. You need a diamond wheel. With a regular wheel, you're creating a contest where both self destroys, not getting a real flat surface.
I agree it seemed to do that on the tighter grained fine side of the stone. But even then it was very flat. The course side worked much better. Time will tell if these hold up. I appreciate the comment and thanks for watching!
The stones may end up flat more or less but that is not the whole picture. The established plane must contain only grains with truncated grain peaks in order to ensure only material that protrudes *above the surface* (and up into the stone cavities, or wise the stone will be too aggressive as all that’s been done is correcting geometry, not conditioning the planar grains.
It’s been a few months since this video came out, I hope you’ve stopped using your metrology equipment for blocking out your surface grinder setups.
I get you with the project c before project b before project a.
Take care
@@matter9 I used the surface plate lightly to test the hinge not to block the stones. Thanks for watching and the comments! You know more than I so thanks for the insights.
It’s good content. From a TH-cam video perspective the level of your mic is way too low, so has to be on high volume to hear you.
This creates a big problem when an Ad comes on! A lot of people probably wearing headphones probably left at Adbreak 1
Thank you for letting me know. I’ll fix that going forward! I appreciate the feedback.
Just need a "hobby" surface grinder 🤣😂🤣
True! Not everyone has a surface grinder. I have another idea I’ll show in a future video on how to do this without a SG. Thanks for watching!
I lapped some used Arkansas stones, against a piece of granite from a windowsill, using silicon carbide grit.. not ideal process, but they have worked really well for cleaning up damaged precision surfaces - they get that really slippery feeling when you have knocked down all of the surface projections..
might have been better to make an aluminum flat lap & charge it with diamond, future project.. learned a few things from the experiment.. or consider ebay/other cheap import diamond wheel.. I have used those for sharpening carbide but not on surface grinder.
& its important to realize when a shortcut will get you something usefully better than what you have already, vs waiting for & never getting to a more ideal solution...
Great video! & nice grinder..
You might be even happier with some older/used/garage sale stones..
Thank you for watching and the comment! Interesting experience you have had. That’s what I like best about doing this is learning new stuff.
I'm in the same boat. A $300 set of stones is just not worth it for the hobbyist.
Agreed. I have a new method coming out next week where I used a Diamond cup wheel on a mill for excellent results. And I have a few extras I’ll be selling on eBay.