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Type: Posts; User: Donovan

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  1. Replies
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    You should pre-grind or pre-hone the ID and...

    You should pre-grind or pre-hone the ID and pre-grind the OD. Pre grind so your finish is equal to or better than your finish product. Make and excellent part to start with so you will get a good...
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    Where do you work. I didn't know that there was...

    Where do you work. I didn't know that there was that many centerless grinder in Colorado besides Us and Ron Grob.
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    There is, it is a Lidkoping CL-46 20" od 24"...

    There is, it is a Lidkoping CL-46 20" od 24" wide machine but finding one here is not easy and they get pretty pricey. I don't think that the OP can keep the concentricity either.

    Lidkoping...
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    I need to know what size your wheels are, and the...

    I need to know what size your wheels are, and the diameter of the part or parts you are running and I will calculate the diamond height and part height for you. You should make sure that your blade...
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    I have a 3b. Are you using the V blade?

    I have a 3b. Are you using the V blade?
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    What brand of machine did you get this time?

    What brand of machine did you get this time?
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    Kellenberger been a good machine but not great. ...

    Kellenberger been a good machine but not great. That kind of money it should be great. I have put a lube pump motor in it. I had to put a new broad in it. Fanuc power supply in it and a fanuc...
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    You might want to look here. Anchor Abrasives...

    You might want to look here. Anchor Abrasives Discs and Cylinders
  9. We see this problem when we try and grind with a...

    We see this problem when we try and grind with a chuck on the Head stock and a center in the tailstock. It could be a balance problem like you said. If you try weights and it does not work then...
  10. DAL CERRO G. What is going on with Tacchella. ...

    DAL CERRO G. What is going on with Tacchella.

    Also here is something for you guys. GST - Gesellschaft fur Schleiftechnik GmbH - Schleifmaschinenbau, Modernisierung von Werkzeugmaschinen - THE...
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    Look here. Brown & Sharpe Grinder Retrofit -...

    Look here.

    Brown & Sharpe Grinder Retrofit - YouTube
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    Here you go. Just about can't beat a Brown and...

    Here you go. Just about can't beat a Brown and Sharpe.

    https://machmotion.com/media/wysiwyg/Grinder/Customer_Examples/New/resized/1600x/5a_Brown_Sharp_Cylindrical_Grinder_Control_Retrofit.png
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    Alright, I cleaned out my box. Donovan

    Alright, I cleaned out my box.

    Donovan
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    What you have there is one of the finest...

    What you have there is one of the finest Centerless Grinders made. I would love to have that machine. They are a little to pricey for me. PM me and I will send over a PDF on the setup on the...
  15. How is the machine working? Is it doing what you...

    How is the machine working? Is it doing what you wanted?
  16. After reading what Cash said, I now understand...

    After reading what Cash said, I now understand what Motion is doing. Motion is keeping a constant load on the grinding wheel so the wheel will break down at the same rate all the time (Most of the...
  17. First off I never have ran a Rotary Surface...

    First off I never have ran a Rotary Surface grinder but I use acoustic sensors on my Kellenberger everyday. I love them and would not buy another grinder without one. So are you just using the...
  18. That is more along the lines of a centerless job...

    That is more along the lines of a centerless job if you ask me. Leave the keyways out and centerless it and then machine in the keys.
  19. Could we get a picture of the spirals? I would...

    Could we get a picture of the spirals? I would always us a Bronze blade with titanium. I have a theroy but I would like to see the shaft before I comment.
  20. Technically, your are right. I put just a little...

    Technically, your are right. I put just a little angle into it. What I have done in the past with long skinny parts is adjust the reg wheel so that the part just moves out to you. Then I put just...
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    Maybe try roughing the parts closer to size. I...

    Maybe try roughing the parts closer to size. I like to rough .0005 to .0008 oversize then go to size. This way you are not grinding so much off on the finish pass and breaking the wheel down. Which...
  22. Glad you found it. Like I said earlier you need...

    Glad you found it. Like I said earlier you need to get the dresser closer to zero but I thought you would need to set the Reg Wheel angle more towards zero also. My Monza and Estarta grinder don't...
  23. Did you find any solution to the problem? Please...

    Did you find any solution to the problem? Please follow up so we all can learn. I don't know about the rest of you but I like to help people find the solution to the problem because I learn a lot...
  24. That is what I like about centerless grinding so...

    That is what I like about centerless grinding so many things to check and adjust. Way more fun than my CNC OD grinder.
  25. If everything is set to zero the part will not...

    If everything is set to zero the part will not pull in but it will not move out either. Coolant placement plays a big role in sizing just like you said.
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