Dickinson toolholders

Suzuki4evr

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Sep 29, 2017
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Hi guys.

You know how you never have enough toolholders?...............................so I made 10

I guess it will still not be enough, but it will make a big difference. I started with a piece of mild steel 600mm×45mm×115mm and machined the sides to get it parallel.
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I then milled out the middle to depth for the clamping section,
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but.............something went wrong. I milled one half and when I started the other half, I noticed that on the first half the mill must have started to come loose an dug in slowly so it went deeper than intended. It would not have made a difference, but I just couldn't leave it like that and after chopping the material up in the right lengths, I welded it up and machined it again. Thats just the way it had to be done. I then had to cross my "T's" (get it?), by using the 8mm T slott cutter,but I completely forgot to take pics of this.
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The next blunder was not mine and I was not happy about it at all. The long piece of material had to be cut up in the correct lengths of approximately 58mm. I marked it out and took it to a local engineering shop to chop it up for me on the radial bandsaw. This is what I got back.
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Check the three on the right. Not square at all.
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The operator did not check his work and work pride was not on his agenda. I showed the owners son and he was nice enough to not charge me.
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After I fixed my blunder by welding it up and machining it down, I took some of rhe blocks to the lathe to drill appropriate holes for some of the boring bars and the rest I milled for the square toolholders.
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The 12mm 4fluit mill performed nice at a 12mm depth of cut.
Then it was time to do the v-grooves. I did this by using my new digital protractor or inclinometer wich I bought via eBay, to set my mill at 45degr. to make the 90degr.v-grooves. What a handy little instrument to have.
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On to the relief grooves in the v-groove wich was done with a 3mm endmill.
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Most of the work was about done so I cleaned up all the remaining surfaces with a flycutter.
The last parts I had to make was the height adjusters. I made them out of EN8.
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Well guys this was fun,it took me a long time,because I had to do it between jobs and there is a lot of machining involved plus the mishaps of course. I will dip my hand in nickel electroplating and nickel plate them to prevent it fro rusting.
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Thanks for viewing.
Michael
 

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Greetings, they look great. The joys of making things you want and need.
 

plunger

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That looks like a handy tool ,that protractor.I found getting the angles the most complicated part of this whole procedure. I did mine in two batches.I machined them sepritley in one batch and the second batch I made one looooong toolpost holder and then cut them in pieces.
But you haven't made enough.
 

Suzuki4evr

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I also went with the looooong approach,but somehow I found that it can cause problems and for some reason it felt that it took longer. And yes,it will never be enough.
 

Suzuki4evr

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Never lost something, but did send something back for some reason, but it is ont way to me again. I use a 16×8 T-slot cutter, it was a bit too smaal on the OD but I made it work,because it's whatI had.
 

Winegrower

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Nice! I’ve thought about doing this, but the time required is formidable. I got a quote from a Banggood company on 20 CXA holders for $15 each...sounds pretty good, right? But I couldn’t wait maybe a month or so, paid between $20 and $26 to get started with a dozen. It’s not enough.
 
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