Power Pro upgrade

JPG · Post by **JPG** » Mon Mar 17, 2014 8:06 pm

dgreen810 wrote:JPG

Thanks, I think I got it!!

Don G

The next stumbling block is the 800w x 600h limit(both apply).

dgreen810 · Post by **dgreen810** » Wed Mar 19, 2014 9:31 pm

I spent the afternoon working on the router table. I wanted to come up with something to fill the miter slots from end to end. Problem: SS miter bar is .310 deep, .729 wide. These are Bastard dimensions as far as finding bar stock to fit. I went to the local steel outlet and bought 10' of 3/4" x 1/4". Ran into a problem, the stock was extremely hard. It was supposed to be cold roll but those things happen. 40 miles round trip I made do. Milled it on both sides to get .729. .006 clearance. I am going to use a .060 Lexan shim either under or on top of the bar so it will be even with the top of the table. Probably will put it on top because is "Slicker".

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Don G

dgreen810 · Post by **dgreen810** » Thu Mar 20, 2014 7:41 pm

I got one filler bar made. Installed the Lexan shim on top of the bar to obtain table height. As hard as the bar was I may not even make the other one until I locate some cold rolled steel or possibly aluminum.

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Don G

JPG · Post by **JPG** » Thu Mar 20, 2014 11:44 pm

Nice xfer* vise! Slobber Drool:D

As for the bar thickness, thinner will still work. It does not need to ride in the bottom of the slot. The slot is wider there any way and will not help alignment. That would mean it needs to slide on the table surface.

* make that 'rotary'. Does it move horizontally as pictured(as I assumed at first)?

dgreen810 · Post by **dgreen810** » Fri Mar 21, 2014 9:44 am

JPG

Yes it does. It's a X-Y as well as a rotary. It's one of the best additions to a shop you can have. I have used this thing for more projects than you can believe.

I am not sure I understand using the thinner stock? All I am trying to do is replicate the original dimensions of a stock SS mitre bar full length of the slot. But I want it "Flush" with the top of the table. SS obviously used "Bastard" dimensions to keep the mitre bar proprietary which is a normal practice to protect their product from "Cheap skates" like me.

The filler bar is not meant to slide, but to stay fixed in the slot. However, it can be removed so the SS mitre can be used if the project needs it.

Don G

BigSky · Post by **BigSky** » Fri Mar 21, 2014 10:09 am

dgreen810 wrote:JPG

Yes it does. It's a X-Y as well as a rotary. It's one of the best additions to a shop you can have. I have used this thing for more projects than you can believe.

I am not sure I understand using the thinner stock? All I am trying to do is replicate the original dimensions of a stock SS mitre bar full length of the slot. But I want it "Flush" with the top of the table. SS obviously used "Bastard" dimensions to keep the mitre bar proprietary which is a normal practice to protect their product from "Cheap skates" like me. The filler bar is not meant to slide, but to stay fixed in the slot. However, it can be removed so the SS mitre can be used if the project needs it.

Don G

This MAY be true but is there a chance that SS choose this dimension BEFORE there was the "standard 3/4" miter bar. Remember that the Shopsmith has been around for a very, very long time. I'm not the historian here but I believe that that dimension was incorporated BEFORE there was a Shopsmith Inc.

beeg · Post by **beeg** » Fri Mar 21, 2014 10:32 am

dgreen810 wrote:SS obviously used "Bastard" dimensions to keep the mitre bar proprietary
Don G

I believe that Hans went with the STANDARD of the day. Way back when.

dgreen810 · Post by **dgreen810** » Fri Mar 21, 2014 11:24 am

Beeg

It's probably true he used dimensions of the day, maybe? However it is common in the industry companies sometimes use "Weird" dimensions to make it difficult to obtain "Knockoff" parts that can be secured elsewhere. Naturally they want a captive audience if possible.

Actually the measurements appear to be 8mm x18mm or metric which is still "Bastard" as far as securing bar stock in this country. You can get it from specialty houses but it would be a special order.

Don G

JPG · Post by **JPG** » Fri Mar 21, 2014 2:06 pm

Do NOT blame this on Hans!!!! The 10E/ERs have 3/4 x 1/4 bars.
Now if he had any say in the Mark 5 development, then he is guilty.

We may never know why, but there were so many new' things introduced with the Mark 5 that this may have just been a fluke(maybe a newbe injuneer just did not know any better).

But then there have been opportunities to change it.(not a good idea as that would make incompatibility problems).

With the 505-20 redesign of the table a 'bastard' t slot extrusion needed to be 'invented'.

dgreen810 · Post by **dgreen810** » Fri Mar 21, 2014 6:07 pm

I am not familiar with the 505-20. However one has to wonder why the design engineers would suddenly change from fractional measurement (U.S.) to metric (Rest of the world)?

I am also not familiar with the 10ER and was not aware the slots on it's table were fractional?

Don G