Riser block build.

Suzuki4evr

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The first time I saw a riser block on YouTube, I thought now that is what I need for my knee mill seeing that I needed the space before on certain jobs and ran into a space problem.

So I measured my mill z-axis dovetail length and screw travel and saw that I will be able to raise the head by about 8.5inches (215mm). I wanted to do it the cheapest way but it had to be rigid. My plan is to make up a riser that fits between the machine column and the swivel base.
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I got a piece of steampipe measuring 10"×7" with a 1/2" wall thickness and two 10.5"×10.5" steel plates a little over 3/4" (20mm) thick. I machined the pipe true and round on the OD only,no need to do the ID. I also faced the two plates on one side each just to have a flat surface to work with and a 1" hole for clamping purpose on my rotary table and machining of bolt holes.
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I went ahead to square up the plates,mill the corners at 45dgr and set up on the rotary table for machining a recess for the pipe to fit and be centered.
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Now the real fun part.......DRO(my newest toy) time. I programed the DRO for the bolt holes. Top plate was drilled and tapped M12 and the bottom one 13mm and counter sunk for M12×40 allen cap bolts.
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I used my angle plate to square everything up (sorry no pic). I tack welded it together,took it off the mill and weld it completely.

To ensure that the riser was parallel and true to the mill spindle, I took a skim pass on both sides of the riser. I am always amazed by the mirror finish I get from my skimming head and resharpned WNMG 080408 insert. Then it just needed a coat of primer and paint and it is done.
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I had a friend help me to install it using a enjin jack to lift the head and bolt down the riser. And that is it,all done. I am glad I did it and now I don't have to swear when I need just that last 3/8" of space so the drill bit or boring head can fit. That's all from me.Before and after pics to follow.
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Thanks for viewing.

Michael.
 

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Nice finish on your cuts can you show how you mounted the carbide to the flycutter plate?
 
Wow, that is some very nice work!
 
That's heavy duty, how did the tramming work out?
 
That's a stand back and snap the suspenders with a smile good.... :encourage:
 
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