Great video. I just scored a surftest 210. Im checking finish on everything. Im curious about the standard. It says 117. Im picturing a 125 finish, which is rough. What id consider a saw cut finish. This standard looks alot better than that. So what do i have wrong?
These pieces of equipment are extremely sensitive and can go out of calibration easy If you know someone who has the same unit as you do a side-by-side comparison using the same test piece should give you the same results If you have access to another master sample try using that to calibrate the unit Ray
That is helpful to me. what are your thoughts on measuring Lapped surface. More of a flatness spec vs roughness I think. I just run an indicator across the part on a granite stone to check, sampling edges and middle and fishing around. Surface finish is in the weeds for this I think when indicator is less than 1/10 of a thou or better Probably a dumb question, had not thought about it.
if its for flatness ? CMM with a contactless prob or try using Optical Flats (most high end inspection labs have them) you could call your local university and ask if they have a Lasermike It uses a helium-neon laser beam to scan the surfaces
@@shopandmath Optical flats are great. you see so much once you learn to read them. Small deviations not something I need to do, but an interesting topic. Tom Lipton videos has me thinking beyond just 1/2 thou range. +/- .005 my typical range and I use those finish samples for reference at times. Thanks for the videos and topics you cover.
Thank you for such a nice compliment and thank you for taking the time to comment I made this video for my level three apprentices it basically contains everything that they will need to write their C of Q or red seal ministry test Thank you again Ray
Good presentation, good refresh for where i'll need it....
thank you for your nice comment. And thank you for taking time to comment. It is much appreciated. Have a great day.
Ray
wonderful explaination, you deserve appreciation😁
Thank you for the positive comment. It is much appreciated and thank you for taking the time to comment.
Ray
Very nice & helping the regular engineering activities
Great video Ray excellent explanation!! Everyone in an apprenticeship should watch this video👍👍
your explanation is crystal clear ...thank you sir for uploading
Thank you for your nice comment and thank you for taking the time to comment it as much appreciated
I wish you were around when I was an apprentice, it would’ve been a whole lot easier. Thanks for taking the time to explain, with great detail.
thank you for your kind comment
Ray
amazing vid mate, really useful for someone studying engineering, thx.
I’m glad that you enjoyed the video
And thank you for taking the time to comment
Ray
👍 very informative. Thanks
Thanks for the video 🙌🏻
Thanks for the nice comment and thank you for taking time to comment. It is much appreciated.
Great video!
Thank you for watching and also thank you for taking the time to comment I
much appreciate it
Ray
So I have perpendicular symbol with a .02 after the symbol. are they call the machine marks to be perpendicular with in .02 of the surface?
I need to see an image
Great video. I just scored a surftest 210. Im checking finish on everything. Im curious about the standard. It says 117. Im picturing a 125 finish, which is rough. What id consider a saw cut finish. This standard looks alot better than that. So what do i have wrong?
These pieces of equipment are extremely sensitive and can go out of calibration easy
If you know someone who has the same unit as you do a side-by-side comparison using the same test piece should give you the same results
If you have access to another master sample try using that to calibrate the unit
Ray
Great video. Thank you.
Sampling length on my SJ-210 shows in terms of Lambda C .1 and the travel distance is nearly .500" Shouldn't it be Lambda C .5?
Do you know where i can buy these Surface roughness metal plates ?
at any machine shop supply
amazon has them
I got mine for almost nothing (used from buying old tools)
That is helpful to me.
what are your thoughts on measuring Lapped surface. More of a flatness spec vs roughness I think.
I just run an indicator across the part on a granite stone to check, sampling edges and middle and fishing around.
Surface finish is in the weeds for this I think when indicator is less than 1/10 of a thou or better
Probably a dumb question, had not thought about it.
if its for flatness ?
CMM with a contactless prob
or try using Optical Flats (most high end inspection labs have them)
you could call your local university and ask if they have a Lasermike
It uses a helium-neon laser beam to scan the surfaces
@@shopandmath Optical flats are great. you see so much once you learn to read them.
Small deviations not something I need to do, but an interesting topic. Tom Lipton videos has me thinking beyond just 1/2 thou range. +/- .005 my typical range and I use those finish samples for reference at times. Thanks for the videos and topics you cover.
good video
Thank you for the nice comment and thank you for taking the time to comment much appreciated
Ray
This video should be compulsory viewing for any materials scientist. ❤❤❤
Thank you for such a nice compliment and thank you for taking the time to comment
I made this video for my level three apprentices it basically contains everything that they will need to write their C of Q or red seal ministry test
Thank you again
Ray
Thank you great video
thank you
Ray
Very helpful, thanks.
thank you for the nice comment
Ray
thanks sooo much .
Thank you for taking the time to comment it’s much appreciated
Thank you
Ray
Thanks
🤒