Po' Boy's Blanchard Grinder

[Philco]

I used this same method several years ago on some hardened pins that needed to all be ground the same height. I used a shoulder bolt for the arbor. Here&#8 217;s a link to the article at Poor mans surface grinder on the Hobby machinist website
Thread starterPhilco Start dateNov 24, 2013
P
Philco
Active User
Registered
JoinedOct 3, 2011
Messages231
Nov 24, 2013
#1
I am making a fixture to rebuild a component inside an automatic transmission. While making the fixture, I had to grind off some hardened steel pins to an exact height. I grabbed a tool that I had made by "accident"for another project an thought someone else may benefit from it.
Take a 3/4 diameter shoulder bolt an cut the head off. This leaves you with a arbor to mount a grinding wheel on. Run the machine at the highest RPM an move x & y. Take light cuts an be sure to cover up the machine to protect from the dust.
I hope this tool will help some one else
Philco

image.jpg image.jpg
Like Reactions: wolfganggt
C
Charley Davidson
Active User
Registered
JoinedNov 8, 2011
Messages1,679
Nov 24, 2013
#2
You're one of the smartest guys I know & thrifty, Great job & idea.


xalky
xalky
Registered
Registered
JoinedJun 17, 2012
Messages2,215
Nov 24, 2013
#3
I love it. I've been thinking about how to implement something similar. I never thought about using a hand grinding wheel. I just don't have the room in my garage right now for a surface grinder, I wouldn't use it much anyways. My original thought was to use a right angle head with a surface grinding wheel mounted to it, but I don't have right angle attachment for my bridgeport....yet:lmao:
GK1918
GK1918
Active User
Registered
JoinedNov 21, 2010
Messages1,599
Nov 24, 2013
#4
Philco, another step further, check out some of the stones they use for marble and such, many styles and grits. Thats what I use on my
shaper ''surface grinder attachment".
xalky
xalky
Registered
Registered
JoinedJun 17, 2012
Messages2,215
Nov 24, 2013
#5
GK1918 said:

Philco, another step further, check out some of the stones they use for marble and such, many styles and grits. Thats what I use on my
shaper ''surface grinder attachment".

Link please!
C
Charley Davidson
Active User
Registered
JoinedNov 8, 2011
Messages1,679
Nov 24, 2013
#6
Phil, You should just come & buy one of my grinders, either the surface grinder or the DoAll T&C grinder. I'll keep the other.
george wilson
george wilson
Global Moderator
H-M Supporter Gold Member
JoinedJul 26, 2011
Messages4,139
Dec 10, 2013
#7
I'd really hate to do any grinding on my milling machine. Be sure to completely cover everything with plastic ,like a garbage bag. I suggest masking tape or duct tape to hold it in place. When finished, CAREFULLY remove the plastic, folding it in on itself,making slow movements to not stir up dust. An extra wipe down afterwards with an oily cloth would also be good.
Like our site? Upgrade to Donating Member status and remove ads!

J
jamie76x
Active User
Registered
JoinedFeb 23, 2013
Messages202
Dec 10, 2013
#8
If you ran a diamond across the face and O.D of the wheel... I'm sure it would work much better. Why not just use carbide on the hardened pins? As mentioned, I would not want to grind on my mill.


P
Philco
Active User
Registered
JoinedOct 3, 2011
Messages231
Dec 13, 2013
#9
12-10-13, 08:19 AMgeorge wilson
Re: Poor mans surface grinder

I'd really hate to do any grinding on my milling machine. Be sure to completely cover everything with plastic ,like a garbage bag. I suggest masking tape or duct tape to hold it in place. When finished, CAREFULLY remove the plastic, folding it in on itself,making slow movements to not stir up dust. An extra wipe down afterwards with an oily cloth would also be good.


12-10-13, 12:56 PMjamie76x
Re: Poor mans surface grinder

If you ran a diamond across the face and O.D of the wheel... I'm sure it would work much better. Why not just use carbide on the hardened pins? As mentioned, I would not want to grind on my mill.


I totally agree with both statements about grinding on the machine. I stated that in my OP. I don't make this a habit of using this set up on my machine. I only use this method in an " emergency" type of set up. In fact I had used a hand grinder to grind the pins down to within a few thousands of the desired height.The pins all had to be the same height for the project to work out as I had planned. I couldn't see sending this part out to a grinding shop for a few thousands. I didn't show my true set up in the picture, I actually had a drape of oily rags hanging down close to the 'out- spray' which catches any grinding dust produced. Jamie, I used this method because I could have better control of the outcome by raising the knee of the mill by 1/2 thousands at a time.
If there are any newbies reading this post, be aware of what damage you can do to a machine by using it as a grinder. If you do use this method, be sure to take George's advice & cover up good.
Phil


pjf134
pjf134
Active User
Registered
JoinedJan 26, 2011
Messages622
Dec 13, 2013
#1 0
Do not use diamond to cut steel as it would tear up the diamond. I seen a shop guy take a $500 diamond blade and cut some steel angles and the blade got wasted in a matter of minutes.
Paul
The_Crusher
The_Crusher
Active User
Registered
JoinedDec 19, 2013
Messages34
Dec 22, 2013
#1 1
Zip cut wheel on an angle grinder to cut them close and then put it on the mill to finish height with carbide. (Duct tape around each one as to not nick the surface)
pestilence
pestilence
Active User
Registered
JoinedJun 23, 2011
Messages120
Dec 22, 2013
#1 2
pjf134 said:
Do not use diamond to cut steel as it would tear up the diamond. I seen a shop guy take a $500 diamond blade and cut some steel angles and the blade got wasted in a matter of minutes.
Paul
He meant use a diamond to dress the grinding wheel. You could throw a diamond in your vice to dress the wheel perfectly true to the spindle.
You must log in or register to reply here
It can take up to an hour for ads to appear on the page. See our code implementation guide for more details. If you already have Auto ad code on your pages there's no need to replace it with this code