Winner Home Grown Cutter Grinder

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Bill Gruby

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That's it for today. I'm tired.

"Billy G"

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Bill Gruby

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On the out-feed stop and on the in-feed stop. Not a particularly good day, but not a bad one either. :rofl: Tomorrow we will finish this part up.

"Billy G"

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Bill Gruby

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OK, all the parts are made. Just a little cosmetic work to go. I can take my time from here.

"Billy G"

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MedfordChris

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When you finally get it all done, can you show how it works? I'm following your build and wondering how all of the pieces are adjusted to allow you to properly sharpen an endmill.
 
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Bill Gruby

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When done I am getting some help to do a video. The adjustments are not as difficult as it looks. Thank you for asking.

"Billy G"
 

ezduzit

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Won't the pan be too flimsy, by itself, to stabilize all those separate stand-offs? I was 1/2 expecting to see you fabricate a solid, thick, sub-base to tie it all together.
 
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Bill Gruby

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Haven't gotten that far yet. That pan is .250 thick at the bottom. I can fabricate a sub frame if needed or not use it at all and fabricate a new one. This one is just a place to start. Thank you for seeing that.

"Billy G"
 
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DAN_IN_MN

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Haven't gotten that far yet. That pan is .250 thick at the bottom. I can fabricate a sub frame if needed or not use it at all and fabricate a new one. This one is just a place to start. Thank you for seeing that.

"Billy G"
.025?
 
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Bill Gruby

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They only had one of these pans. It is for commercial use, that's why I chose it. It is actually two pans with only one having the roll-over on the edge. The other is held fast under the roll-over. As you can see it's quite thick. Sorry for any confusion. I should have explained this earlier. I also asked the place to call me if they got any more like this one.

"Billy G"

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xalky

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I did see the pan there, but I thought it was just a place to hold your things. I'm also thinking it would need to be more rigid. It's a great day to hide out in the shop, it's snowing over here. :allgood:
 
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Bill Gruby

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At 1/4 inch thick that pan does not flex at all. It is not a normal baking pan. Someone had 6 made and seven came in. I got #7. Take a look at the pans on your machines, if they are steel they will most likely be only .125 thick.

"Billy G"
 
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xalky

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:lmao: LOL. I should have paid closer attention. I thought it read .025 not .250.... :footinmouth:
 

Old Iron

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I see a bunch of you watching today, Thank you.

Another trick to show the neophyte the versatility of the four jawed chuck. 3 jaws in one way and 1 the opposite. Any number of combinations can be used. That's a portrait of my sister in law in the back. :lmao::lmao::lmao:

"Billy G"
Billy I haven't been around here much lately but I just finished reading this whole post. nice job your doing as usual.

And one other thing you should be nicer to your sister in-law :rofl:, I'm lucky I don't have one.

Paul
 

ezduzit

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That is 1/4" of rather soft aluminum (so they could roll the edge). It may feel rigid but you could measure a lot of deflection if you torque it. Its stiffness is further compromised by it being laminated from 2 pieces.
 
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Bill Gruby

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When finished it will be bolted to 1.5 inches of Rock Maple Table. That should take out any problem that will arise. Bottom line is I'm not the least bit worried of the outcome either way. Thank you again for the observation. All observations are greatly appreciated, I can't see everything.

"Billy G"
 
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Bill Gruby

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Just scored what I need to make the pedestal that the Grind Spindle and components mount to. 4 X 4 X 1/2 wall Aluminum Square Tube 24" long.

"Billy G"
 
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Bill Gruby

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Thank you Randy.

OK the grind head pedestal is in mock up. Again we incorporated wood because the exact height is not yet known. The Grinding head will have two adjustments, height and fore and aft location. As you can see the pan is filling up fast now.

"Billy G"

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Bill Gruby

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With this part mocked up I can get the exact height and location dimensions tomorrow. The center, up and down, is the center of the spindle. Wood is good. :rofl::rofl:

"Billy G"

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Bill Gruby

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We have a height. Had to lower the pedestal 1.000" to get center. At this dimension we can raise or lower the head 2.5" for a total of 5.00" total. More than enough. The cupped wheels are 3.00" diameter.

"Billy G"

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xalky

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Looking good Bill! Wood is good and it's cheap. Better to experiment with a free or cheap scrap piece of wood than a $100 piece of good metal. :))
 
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Bill Gruby

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Now to wait for material. There was no reference to the fore and aft location of the spindle. I checked it against a professional cutter grinder at a friends' shop. With the workstation vertical it should be 2" center to center. We are now good to go.

"Billy G"

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Bill Gruby

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Just checked on the materials and they should start arriving on Monday. These are two shots of the process of backing up the dimensions arrived at in the last two days. As said earlier, we are good to go.

"Billy G"

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ezduzit

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Do you think my 1/4 hp Dumore tool post grinder would be adequate? Or do you simply need a larger wheel?
 
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Bill Gruby

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The original by my friend in England uses a "Parvalux 1/8 HP 2800 RPM. The Dumore will do just fine. I have a "Parvalux" but it is 3600 RPM. I need to adjust pulley sizes to make it work. The spindle has two speeds on the original, one at 2800 RPM and the other 5700 RPM.

"Billy G"
 
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ezduzit

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Thanks. Yeah, I was hoping to utilize the tp grinder with whatever I could put together from the secondary market...like most of my stuff. Had been watching the auctions to see what was out there. Thinking along those lines I came across your great thread. Most of the end mills I have came to me, used. Same with lathe cutting tools. My lathe and vertical mill are ancient. But I'm older. Looking forward to mastering the skill necessary to re-grind standard end mills and other tools. What you are building seems just what is needed.
 
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