It's nice to get tips and tricks from the "old timers". When I started 30 years ago not a lot of the old timers were willing to share their knowledge...
When Don speaks, all of us listen. I’m a hobby machinist and like the way you present your information. love the quality Products you manufacture. . Thank You.
Don, I cannot say thank you enough, the knowledge i am gaining from you, I am so grateful for. As a home gamer and pretty much newbie to machining, your videos are some of the best insight i have found. Thank you again and again. DJ
I've been a machinist for about 40 years and ran out of people to learn from. Thanks for the video and thanks for your tools, Suburban always makes excellent quality tooling...well worth the price!
Beautiful Bob cool vid. All that makes perfect sense I remember Brother Frietes teachings about dressing the wheel and using smaller wheel to reduce SFPM to lower heat and thermal distortion and magnet ON stress in the chuck and doesn't anyone use Dykem any more? This is all becoming lost knowledge buried under corporate accounting and management lack of appreciation for what all this means. It is a shame I have seen far too much " I want it now" and i don't care that's too much FYI, We dont want to hear excuses why it cant be done now ....
Mike, new manufacturing management isn't really responsible for the current mindset. Most just don't know the value of process control because they have never witnessed the benefits of being surrounded by skilled journeyman machinists like we were as young pups. I have a company president at TGS that is starting to understand so for today I feel fortunate. He actually allowed us to send some housings with .0003 tolerance out to california jig grinding for the finishing operation and our yield has jumped from 1% to 100% over a two month period....zero MRB. We do have the equipment to hold the tolerances in our shop but are missing the mindset. You remember at the Tech that some guys just had the gift and understood why Brother Frietas pointed out the tricks and some of the guys just didn't get it....we have one of the non-believers here and it's costing millions.
Bob Jimenez Good to hear that Bob yes the mind sets more and more I am surrounded with tend to point blame and run rather then solve problems...or that's their way of solving problems in Large shareholder driven companies, kind of like borrowing money from one credit card to pay another mentality.. where I am at now its not like that the company is too small and 2 brothers own it. NO shareholders to satisfy. good to hear your doing well living in clean air and not so crowded environment... I If I did not have to deal with taking care of my mom I would consider moving up there or Colorado...
Just watched this video. Thanks for making it. Noticed you are using a wheel which looks like it is 3/4 inch wide. What amount of cross feed do you use when dusting the top of your magnetic chuck?
Hello Don, thank you for the video. I would like to know how to true and dress a vertical surface spindle grinder if possible. Any info on that you could share? Thank you in advance.
I have dusted many surface grinding chucks . Actually I use crisco grease instead of coolant. Reason why. Most chucks have brass laminationes and the crisco cooking grease helps stop the brass from bonding to the wheel. Please give me feedback.
+SuburbanTool Inc Thank you and thanks for putting those videos on youtube.!!. We just bought old surface grinder and I'm trying to learn from your videos how to operate that thing lol.
another hint to grinders, most surface grinders have had some form of abuse or an accident and never seem the get rid of chatter marks, do not blame the wheel , indicate the taper of spindle where wheel adapter is bolted on and check for run/out a new spindle runs at .0002 or better if its in access there is your vibration.or also could mean bad spindle bearings if any noise is present.
I noticed you didn't cover truing the back rail. Most of the shops I have worked usually use the back rail on the 7" grinders. The bigger automatics usually do not have them. Again I like your videos. Thanks
I have watched this four times. Beyond the tips, small wheel, sharp diamond traversed quickly and coolant I don’t see is how. What path pattern, overlap amount, pass and wait to cool or no, width of wheel more contact possible is that counter intuitive yet leading edge does the cutting, how long should I spend on a single covering pass. I have yet to read more than a paragraph in any commonly available text on machining. Coming to the conclusion it’s only opinions.
magnetic chuck grinding needs skill, to hold within .0001 from end to end front and back , also a machine that is not all worn out helps a lot. a 7 inch wheel @ 3500 rpm is 6000 fpm by cutting it down to 2500 sfp is the ideal speed for the soft chuck metal , less heat, vibration, and aggressive machining so if your machine has a variable spindle speed you may use a 7 inch wheel @ 1750 rpm or less
The only thing I use to mark on the items I'm grinding is a permanent marker "sharpie" this is a marker that will give you a surface buildup of less than a tenth, it dries almost immediately and if you scratch it off you know you are home...
grining chuck on... i disagree i have a chuck at work perfectly flat. when the chuck is ON the polls extend above the surface. with chuck off the polls are below the surface pulling the chuck down. fast feed fast crossover no coolant required. done on a micromaster 618.
It's nice to get tips and tricks from the "old timers". When I started 30 years ago not a lot of the old timers were willing to share their knowledge...
Thank you @douglas pierce
When Don speaks, all of us listen. I’m a hobby machinist and like the way you present your information. love the quality Products you manufacture. . Thank You.
Don, I cannot say thank you enough, the knowledge i am gaining from you, I am so grateful for. As a home gamer and pretty much newbie to machining, your videos are some of the best insight i have found. Thank you again and again.
DJ
I've been a machinist for about 40 years and ran out of people to learn from. Thanks for the video and thanks for your tools, Suburban always makes excellent quality tooling...well worth the price!
Beautiful Bob cool vid.
All that makes perfect sense I remember Brother Frietes teachings about dressing the wheel and using smaller wheel to reduce SFPM to lower heat and thermal distortion and magnet ON stress in the chuck and doesn't anyone use Dykem any more?
This is all becoming lost knowledge buried under corporate accounting and management lack of appreciation for what all this means.
It is a shame I have seen far too much " I want it now" and i don't care that's too much FYI, We dont want to hear excuses why it cant be done now ....
Mike, new manufacturing management isn't really responsible for the current mindset. Most just don't know the value of process control because they have never witnessed the benefits of being surrounded by skilled journeyman machinists like we were as young pups. I have a company president at TGS that is starting to understand so for today I feel fortunate. He actually allowed us to send some housings with .0003 tolerance out to california jig grinding for the finishing operation and our yield has jumped from 1% to 100% over a two month period....zero MRB.
We do have the equipment to hold the tolerances in our shop but are missing the mindset. You remember at the Tech that some guys just had the gift and understood why Brother Frietas pointed out the tricks and some of the guys just didn't get it....we have one of the non-believers here and it's costing millions.
Bob Jimenez Good to hear that Bob yes the mind sets more and more I am surrounded with tend to point blame and run rather then solve problems...or that's their way of solving problems in Large shareholder driven companies, kind of like borrowing money from one credit card to pay another mentality.. where I am at now its not like that the company is too small and 2 brothers own it. NO shareholders to satisfy. good to hear your doing well living in clean air and not so crowded environment... I If I did not have to deal with taking care of my mom I would consider moving up there or Colorado...
The Q & A was especially a nice touch and very informative. Way to go sir
Thank you kindly!
Thanks Don!
I take everything you say to heart.
I am a new owner of a surface grinder... and your videos have put me on deck.
Thanks again,
Mark
Greetings! Another fine demonstration sir. Thank you for passing your wisdom to others.
Thanks again Don and Jim. Great lessons, I learned more in 10 min. then I have in a year!!!!!!!!!!!!!! Big Thumbs up M.K.S.
I had a factory rep from Norton recommend we use Crisco on the chuck when dressing , with the power on , as you said later.
I just reground my chuck today no coolant just way oil and it does help to put a step on the grinding wheel
Thanks Don for sharing very informative series of videos.RegardsEd.
fantastic you do a great job thanks for your hard work, I am sure you enjoy it.
Just watched this video. Thanks for making it. Noticed you are using a wheel which looks like it is 3/4 inch wide. What amount of cross feed do you use when dusting the top of your magnetic chuck?
Another good one, thanks. Regards Lou.
Excellent. One thing I might ask is how much do you move the Y axis for each pass.
Hello Don, thank you for the video. I would like to know how to true and dress a vertical surface spindle grinder if possible. Any info on that you could share? Thank you in advance.
Thanks Don.
I have dusted many surface grinding chucks . Actually I use crisco grease instead of coolant.
Reason why. Most chucks have brass laminationes and the crisco cooking grease helps stop the brass from bonding to the wheel.
Please give me feedback.
+tomasobamela That is an old toolmakers trick from years ago. We have never tried it but that is one way to do it.
Will dykem plug up the wheel?
Rookie question: Can you adjust the spindle speed on a grinder? Is using a smaller diameter the only option?
smashed that like button fam. dank videos.
+Yu Dunowme Thanks dude.
Which grinding wheel you use to grind something that was harden like cutting knifes or punching pins??
+andrewcobra2000 I'd recommend a Norton Alundum 60i.
+SuburbanTool Inc Thank you and thanks for putting those videos on youtube.!!. We just bought old surface grinder and I'm trying to learn from your videos how to operate that thing lol.
+andrewcobra2000 Stick with it, practice makes perfect.
Just did my chuck with a 46i following your tips. What do you know, sucess! Thanks.
Glad to hear it! Thanks again for watching.
another hint to grinders, most surface grinders have had some form of abuse or an accident and never seem the get rid of chatter marks, do not blame the wheel , indicate the taper of spindle where wheel adapter is bolted on and check for run/out a new spindle runs at .0002 or better if its in access there is your vibration.or also could mean bad spindle bearings if any noise is present.
I noticed you didn't cover truing the back rail. Most of the shops I have worked usually use the back rail on the 7" grinders. The bigger automatics usually do not have them. Again I like your videos. Thanks
Don, What kind of coolant are you using in your mister ? Thanks, Greg.
Greg Kozak We use Cimstar 40B
thanks guys!
Well now.. that is the first time I have seen you use power.
thank you
I have watched this four times. Beyond the tips, small wheel, sharp diamond traversed quickly and coolant I don’t see is how. What path pattern, overlap amount, pass and wait to cool or no, width of wheel more contact possible is that counter intuitive yet leading edge does the cutting, how long should I spend on a single covering pass. I have yet to read more than a paragraph in any commonly available text on machining. Coming to the conclusion it’s only opinions.
Craftsmanship 👍 years of years of experience makes a man better tool and die maker, not fancy machines
magnetic chuck grinding needs skill, to hold within .0001 from end to end front and back , also a machine that is not all worn out helps a lot.
a 7 inch wheel @ 3500 rpm is 6000 fpm by cutting it down to 2500 sfp is the ideal speed for the soft chuck metal , less heat, vibration, and aggressive machining
so if your machine has a variable spindle speed you may use a 7 inch wheel @ 1750 rpm or less
The only thing I use to mark on the items I'm grinding is a permanent marker "sharpie" this is a marker that will give you a surface buildup of less than a tenth, it dries almost immediately and if you scratch it off you know you are home...
Sharpie is great for this!
I would have thought that a larger diameter wheel would get hotter due to the faster spin and more surface ?
That's true, but you can reduce the heat by changing the grit and/or hardness of a wheel.
WoWzerz
Turn the chuck on.
+George Lee The chuck is on George.
grining chuck on...
i disagree i have a chuck at work perfectly flat.
when the chuck is ON the polls extend above the surface.
with chuck off the polls are below the surface pulling the chuck down.
fast feed fast crossover
no coolant required.
done on a micromaster 618.
but each to his own, i done it his way for years before another toolmaker showed me another.
+cbeaulac That's certainly another way to do it. We turn the chuck on because the chuck will be on when we're using it to grind.