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New holding fixture I'm working on.


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#1 maccrazy2

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Posted 18 November 2018 - 08:13 AM

A new holding fixture I'm building for holding work between centers with adjustable center supports for work on the mill. I just finished the dovetail for the tailstock slide. There will be 2 5c collet indexers mounted on top for work holding.

#2 maccrazy2

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Posted 18 November 2018 - 08:21 AM

Base plate

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#3 maccrazy2

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Posted 18 November 2018 - 08:22 AM

Tailstock base

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#4 Cutter

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Posted 18 November 2018 - 03:50 PM

Nice, Chris

Is that for your cues??



#5 maccrazy2

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Posted 18 November 2018 - 04:44 PM

Yes. It is a jig to hold the forearm of the cue between to indexers so material can be milled away for the points.
Currently I use a similar setup and a 5in diameter 90deg cutter. I have to hold the backside of the forearm when cutting to control vibration and keep the chatter down. The new jig will clamp on both ends with collets as opposed to just centers. Also, I am working on a few designs to hold the center of the wood so I don’t have to have my hands anywhere near the cutter. I’m also going to try using an endmill and nod the head on the Bridgeport instead of the 90deg cutter.

#6 maccrazy2

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Posted 18 November 2018 - 04:50 PM

This is my current setup

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#7 maccrazy2

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Posted 18 November 2018 - 04:51 PM

This was the mock-up of the new jig. It will have 2 indexers as opposed to a tailstock.

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#8 Cutter

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Posted 18 November 2018 - 04:57 PM

Question ,
Why such a large cutter ?


#9 maccrazy2

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Posted 18 November 2018 - 05:03 PM

To increase surface speed of the cutter was the original reason I chose that one.

#10 Cutter

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Posted 18 November 2018 - 05:28 PM

I like the end mill and tilted head, much less tool pressure 

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#11 maccrazy2

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Posted 18 November 2018 - 05:46 PM

Absolutely. The other setup is on an import mill with a fixed head. Now that I have a Bridgeport I’m going to give that a try.
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#12 maccrazy2

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Posted 19 November 2018 - 01:03 AM

Lol. I just noticed in the above photo there is a collet in the DRO collet rack that I don’t use. Any bets it’s the missing 7/8 collet I was turning over the whole shop looking for and finally replaced last week after giving up. I hate it when I do dumb stuff.
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#13 maccrazy2

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Posted 22 November 2018 - 05:08 AM

I just finished up the base. Just need to clean everything and get it over to the anodizing place. Next up drill the indexers mounting holes and machine the bases to the exact same height. Hopefully I’ll have that sorted out before the base is completed.

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#14 Dave

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Posted 22 November 2018 - 05:59 PM

Thats pretty awesome!



#15 maccrazy2

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Posted 26 November 2018 - 12:04 AM

I’m working on truing up the bases of the indexers today. It took a lot longer the get everything running true for flycutting the bases and drilling the mounting holes. I’m taking the aluminum base to the anodizing place tomorrow. Hopefully they aren’t too backed up.

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#16 maccrazy2

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Posted 26 November 2018 - 12:05 AM

.

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#17 maccrazy2

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Posted 26 November 2018 - 12:07 AM

.

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#18 maccrazy2

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Posted 08 December 2018 - 03:43 PM

I got the parts back this week. Hopefully I will get it finished up this weekend

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#19 maccrazy2

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Posted 08 December 2018 - 03:45 PM

I ordered some lever handles so I don’t have to keep an Allen key around to move the tailstock

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