Great ideas for sure. Ive been looking into 3D printers and shop tools is first on my list of things to print. I have traditional metrology and machining tools in multiples but this is creative and fun! Doesn’t stop me from using traditional tools at all. To me life is not about finding a comfort point, digging in, signaling your tribe, and fighting with those who differ. I want to explore things in all disciplines and continue to learn and understand. This channel is great for that! Thanks!
I’m glad that you like them. I have many many more just haven’t made a video on them. Thank you for taking the time to comment. It’s much appreciated. Ray
Greeting from Austin Texas Ray. I like the tool grinding guides. Clever. Teaching apprentices is very rewarding, provided they have what it takes and hopefully also have "The Feel". Stay well.
@@shopandmath My machinist journey is long. My great uncle was a draftsman and machinist for a tool and die firm in Toronto. My father retired from his engineering job but wanted to be a Tool and Die maker but the war interupted that journey and his education was paid for so he went another direction. Upon his retirement he went to Algonquin and tool the machinist courses. I was working in tech in California. I lost my job and he convinced me to join him. That sparked my interest. Now with my kids off to uni my shop is getting readier day by day. You have a great and unique channel, please keep it up.
Students love it because it saves them so much time someone who’s never ground a tool it can take them all day to get a correct Thank you for taking the time to comment. Much appreciate it. Ray
I’m already planning some more modifications on this version the adjusting screw hits the two upper rail sometimes with your fingers so I want to extend both of those pieces out at a few minutes to the print time but that’s about it. Thanks for taking the time to comment much appreciated. Ray
@@shopandmath I will print your design one day. I must have 10 dial test indicators sitting in a drawer, ha ha. I’m actually into designing a scratch built bench top sized CNC machine. I was thinking a design like this might be adaptable to the build process. Squaring up the Z axis to the XY plane when at the frame build stage. Before any of the liners motion components are installed.
i’m currently working on the 2024 version. You will want to wait and print that one. I should have it up in the next week and a half. If you send me an email I will send you the files as soon as I get them finished the basic changes. Email is shopandmath@gmail.com.
Cosine error. Basically, the indicator will not read a true distance traveled. I made a video on this to explain this to my students and I’m attaching a link. th-cam.com/video/toEVZeupYR8/w-d-xo.html If this does not explain it well enough, send me a message and I’ll try and explain it in a different way. Ray
@@shopandmath That is an unfortunate term for using the cosine of the angle to calculate the length of the hypotenuse. But thanks for clarifying what you meant.
@@shopandmath No thanks. But you could go and take a trigonometry course at your local community college if you don't understand why "error" is inaccurate for what you're using the phrase "cosine error" to describe. It's obvious from the one video of yours that I already watched why you call it that: the difference is smaller than the precision of wood shop tools so it's as small as a proverbial "rounding error" but it still is not really an error. It isn't slop nor is it any mathematical error such as rounding. "Pythagorean adjustment" would be an accurate term and there are a lot of other possible names that would not be wrong. Calling it an "error" *is* wrong. It isn't an error. It's a difference, which can be calculated exactly using the length of either of the two legs of a right triangle that is adjacent to the right angle, and the cosine of that angle (or the sine, depending which leg and which angle you use).
@@reed-young Not sure I understand your complaints. As per Merriam Webster, one of the definitions of the word "error" is "the difference between an observed or calculated value and a true value". And surely it's impractical in many scenarios to calculate this amount or adjust for it as you suggested -- for example, quickly setting up an indicator on the end of a noga arm, so you're only working with the observed value against the true value. But even if you put in the effort, at some point you reach the limits of your measuring tools -- it will never be perfectly square. Therefore "error" seems quite apt. Correct me if I've made an error. As for cosine, idk, seems ok to me. The angle being referred to is the angle between the desired (adj) and actual (hyp) lines of measurement. The trig function that relates these lines most directly is cosine, for example if the measured distance were 2" with a 1 degree misalignment (if it were known) then the actual distance would be 2"*cos(1 deg) ~= 1.9997". Obviously it could be called something more accurate, but I would argue "cosine error" is fairly succinct and compatible with general shop talk while also being fairly accurate, possibly more so than "pythagorean adjustment", which while technically true is arguably more vague (and also twice the syllables). And needless to say, "cosine error" is very much the established industry term and not just a term this guy invented. You can open a textbook on laser interferometry and find the term (and those people surely know their trig).
To check squareness the part should be inverted, not checked end for end. Your test compares squareness errors on each end of the part, but does not verify actual squareness.
Hi Joe, thank you for commenting. If you check the right side of the part and it’s out.0.0001 and then you check the left side of the park and it’s out 0.0005 add the two together which equals 0.0006 and then divide that by two which equals 0.0003 that is how much your part is out of square
WARNING: (Very Dangerous Procedures) * Video: (2:03/4:40) Lathe Polishing Tool * Video: (2:22/4:40) ['compound rest = 45'] Using 'cross slide' to pull sand paper strip back --> "NO SENSITIVITY FEAL" --> {Pull Material Out of Chuck}. * Video: (2:33/4:40) ['compound rest = 45'] Using 'cross slide' to push sand paper strip in --> "NO SENSITIVITY FEAL" --> {Push Material Out of Chuck}.
Hi Bill You do realize that the lathe polishing tool is made out of plastic 3-D printed PLA 3-D printed plastic does not have the tensile strength to remove apart from the chuck And if you could pull the part out without breaking the paper, and without breaking the 3-D printed piece, you didn’t have a tight enough Ray
@@shopandmath Even if you know what youi doing making your job easier and more efficient is a good thing. Unless you are paid by the hour then be "oldschool" :P
Those tools look great. Looking forward to printing them. Could you provide an updated link to download the files? Thanks in advance for sharing!
I knew link has just been posted. Sorry about taking so long. It’s just been the end of semester.
Ray
Great ideas for sure. Ive been looking into 3D printers and shop tools is first on my list of things to print. I have traditional metrology and machining tools in multiples but this is creative and fun! Doesn’t stop me from using traditional tools at all. To me life is not about finding a comfort point, digging in, signaling your tribe, and fighting with those who differ. I want to explore things in all disciplines and continue to learn and understand. This channel is great for that! Thanks!
Thank you for the nice comments.
And thank you for taking the time to comment. It’s much appreciated.
Ray
Great additions to the shop. I will be printing these 👍👍😎👍👍 Thank You Ray!
I’m glad that you like them. I have many many more just haven’t made a video on them.
Thank you for taking the time to comment. It’s much appreciated.
Ray
Thanks! Great information and I look forward to printing one of each! New subscriber!
Thank you for your nice comment and thank you for the taking time to comment
Ray
Can get a new link to your 3d Prints? Really good job with them and would love to print them. Thank you. Lathe Polishing Tool
I’ve updated the link to the polishing tool should work now
@@shopandmath Thank you very much. Just Downloaded it can't wait to print and use it.
Pretty nice, thanks for sharing and have a great New Year. Charles
Greeting from Austin Texas Ray. I like the tool grinding guides. Clever. Teaching apprentices is very rewarding, provided they have what it takes and hopefully also have "The Feel". Stay well.
Hi Joe
Big fan watch your channel all the time.
Thank you for commenting much appreciate it.
Happy new year
Great! Very helpful tools.
Thank you for the nice comment and thank you for taking the time to comment. I much appreciate it.
Ray
@@shopandmath My machinist journey is long. My great uncle was a draftsman and machinist for a tool and die firm in Toronto. My father retired from his engineering job but wanted to be a Tool and Die maker but the war interupted that journey and his education was paid for so he went another direction. Upon his retirement he went to Algonquin and tool the machinist courses. I was working in tech in California. I lost my job and he convinced me to join him. That sparked my interest. Now with my kids off to uni my shop is getting readier day by day. You have a great and unique channel, please keep it up.
Thanks Ray, what a great idea, very informative extremely useful.
Thank you for your nice comment and thank you for taking the time to comment Appreciate it
Ray
Very good informative video, thank you. I printed the sanding/polishing tool when you first showed it, works well.
Hi Andy, thank you very much for the feedback. It’s much appreciated.
Thank you.
Ray.
Thank you for the great tools.
Thank you for the nice complement and thank you for taking the time to comment. It’s much appreciated.
Ray
I don't understand why anyone would not like the grinding jig?? It is simple and looks like a useful tool.
Students love it because it saves them so much time someone who’s never ground a tool it can take them all day to get a correct
Thank you for taking the time to comment. Much appreciate it.
Ray
Nice work. I had watched the entire squareness comparator video a few months back. Good to hear you are on v8! Most people stop at v1.
I’m already planning some more modifications on this version the adjusting screw hits the two upper rail sometimes with your fingers so I want to extend both of those pieces out at a few minutes to the print time but that’s about it.
Thanks for taking the time to comment much appreciated.
Ray
@@shopandmath I will print your design one day. I must have 10 dial test indicators sitting in a drawer, ha ha. I’m actually into designing a scratch built bench top sized CNC machine. I was thinking a design like this might be adaptable to the build process. Squaring up the Z axis to the XY plane when at the frame build stage. Before any of the liners motion components are installed.
can you repost a link to the squareness comparator please - it has expired.
i’m currently working on the 2024 version. You will want to wait and print that one. I should have it up in the next week and a half. If you send me an email I will send you the files as soon as I get them finished the basic changes. Email is shopandmath@gmail.com.
What do you mean by "cosine error"?
Cosine error.
Basically, the indicator will not read a true distance traveled. I made a video on this to explain this to my students and I’m attaching a link.
th-cam.com/video/toEVZeupYR8/w-d-xo.html
If this does not explain it well enough, send me a message and I’ll try and explain it in a different way.
Ray
@@shopandmath
That is an unfortunate term for using the cosine of the angle to calculate the length of the hypotenuse. But thanks for clarifying what you meant.
@@reed-young
Watch this video this should explain everything you need to know about cosign error
th-cam.com/video/toEVZeupYR8/w-d-xo.html
@@shopandmath
No thanks. But you could go and take a trigonometry course at your local community college if you don't understand why "error" is inaccurate for what you're using the phrase "cosine error" to describe.
It's obvious from the one video of yours that I already watched why you call it that: the difference is smaller than the precision of wood shop tools so it's as small as a proverbial "rounding error" but it still is not really an error. It isn't slop nor is it any mathematical error such as rounding. "Pythagorean adjustment" would be an accurate term and there are a lot of other possible names that would not be wrong. Calling it an "error" *is* wrong. It isn't an error. It's a difference, which can be calculated exactly using the length of either of the two legs of a right triangle that is adjacent to the right angle, and the cosine of that angle (or the sine, depending which leg and which angle you use).
@@reed-young Not sure I understand your complaints. As per Merriam Webster, one of the definitions of the word "error" is "the difference between an observed or calculated value and a true value". And surely it's impractical in many scenarios to calculate this amount or adjust for it as you suggested -- for example, quickly setting up an indicator on the end of a noga arm, so you're only working with the observed value against the true value. But even if you put in the effort, at some point you reach the limits of your measuring tools -- it will never be perfectly square. Therefore "error" seems quite apt. Correct me if I've made an error.
As for cosine, idk, seems ok to me. The angle being referred to is the angle between the desired (adj) and actual (hyp) lines of measurement. The trig function that relates these lines most directly is cosine, for example if the measured distance were 2" with a 1 degree misalignment (if it were known) then the actual distance would be 2"*cos(1 deg) ~= 1.9997". Obviously it could be called something more accurate, but I would argue "cosine error" is fairly succinct and compatible with general shop talk while also being fairly accurate, possibly more so than "pythagorean adjustment", which while technically true is arguably more vague (and also twice the syllables).
And needless to say, "cosine error" is very much the established industry term and not just a term this guy invented. You can open a textbook on laser interferometry and find the term (and those people surely know their trig).
To check squareness the part should be inverted, not checked end for end. Your test compares squareness errors on each end of the part, but does not verify actual squareness.
Hi Joe, thank you for commenting.
If you check the right side of the part and it’s out.0.0001 and then you check the left side of the park and it’s out 0.0005 add the two together which equals 0.0006 and then divide that by two which equals 0.0003 that is how much your part is out of square
WARNING: (Very Dangerous Procedures)
* Video: (2:03/4:40) Lathe Polishing Tool
* Video: (2:22/4:40) ['compound rest = 45'] Using 'cross slide' to pull sand paper strip back
--> "NO SENSITIVITY FEAL" --> {Pull Material Out of Chuck}.
* Video: (2:33/4:40) ['compound rest = 45'] Using 'cross slide' to push sand paper strip in
--> "NO SENSITIVITY FEAL" --> {Push Material Out of Chuck}.
Hi Bill
You do realize that the lathe polishing tool is made out of plastic 3-D printed
PLA 3-D printed plastic does not have the tensile strength to remove apart from the chuck
And if you could pull the part out without breaking the paper, and without breaking the 3-D printed piece, you didn’t have a tight enough
Ray
Why anyone would give you flack for designing something to help people learn or do better is beyond me. I think it’s a great idea!
Thank you for your comment.
you know how the Internet is?
@@shopandmath Even if you know what youi doing making your job easier and more efficient is a good thing. Unless you are paid by the hour then be "oldschool" :P
@@kruger12311 good one