How to replace a Unisaw Cast-Iron Base.... The HARD Way...

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Forum topic by Phred posted 01-12-2010 06:26 AM 3014 views 0 times favorited 10 replies Add to Favorites Watch
View Phred's profile


53 posts in 3991 days

01-12-2010 06:26 AM

Hey Guys,

Thought you might enjoy some of my pain tonight, After restoring my Unisaw, the last thing that I needed was a new base, you can see by the first pic that the base I got with my unisaw was cracked really bad. (part of the reason I got it so cheap. I went on, and met someone online who had one spare one, and we agreed on a price, however, it took a grand total of 5 months to get it (customs held it up REALLY good) finally got it the other day, cleaned it, sprayed it, and now it’s time to install it. However, me being the lazy guy I am, I did not feel like dis-assembling the saw, the fence, the side table, the outfeed table, etc.. so.. here are some pics of how to change it the hard way!

First Pics, Here is the saw just resting on the old base (you can see the back crack, and the bad paint job the saw had before)

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Here is the “Chair” I built around the top of the saw, the plan was to jack it up 1/2” and let the saw hang in the air while I change the base. I already jacked it up in the picture, and it’s sitting on the 1/2” spacers I made up.

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And now, for a magic trick! how to make a Unisaw Hover!

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Here’s the base before it gets bolted on!

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And Finally, the finished project. I find that now that the saw is bolted on, it much more stable then just sitting on top of the post. (yeah, go figure) Finally, the Unisaw project is complete!!

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For those of you who are wondering, this is what the saw looked like when I got it…. Saw was Built June of 1954, Still running with the original motor! Only thing I need now is the Goose-Egg cover…. but.. that can wait :)

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-- But honey.. this new power tool will pay for itself when we re-do the kitchen!

10 replies so far

View Jeison's profile


968 posts in 3378 days

#1 posted 01-12-2010 06:28 AM

i believe this deserves a big hearty “woooooooot!”

-- - Jei, Rockford IL - When in doubt, spray it with WD-40 and wrap it with duct tape. The details will attend to themselves.

View Karson's profile


35158 posts in 4671 days

#2 posted 01-12-2010 06:28 AM

I nice looking transformation

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Appomattox Virginia [email protected]

View Scott Bryan's profile

Scott Bryan

27250 posts in 4092 days

#3 posted 01-12-2010 01:09 PM

This is a really nice transformation. It looks better now than it did when it was new! I love seeing older tools, like this unisaw, refurbished and given a new lease on life.

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View Tim Dahn's profile

Tim Dahn

1579 posts in 3836 days

#4 posted 01-12-2010 01:17 PM

That is great! I too love to see these old tools restored.

-- Good judgement comes from experience and experience comes from poor judgement.

View Bob #2's profile

Bob #2

3810 posts in 4292 days

#5 posted 01-12-2010 04:47 PM

nice move on that base replacement .
A guy needs a certain amount of McIver when working alone.


-- A mind, like a home, is furnished by its owner

View PurpLev's profile


8550 posts in 3919 days

#6 posted 01-12-2010 05:16 PM

magic in the shop – always a nice thing to see. nice job on the restoration!

how do you like that Jess’Em sliding table?

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View MedicKen's profile


1615 posts in 3733 days

#7 posted 01-12-2010 05:18 PM

Im guessing by the way you installed the plinth the sheet metal floor is MIA. For some unknown reason mine is missing also. You might want to get some pain on that dust door before it starts to rust. You can also get a nice replacement badge for it from Justin(naturalmystic) at owwm. He does great work and at $15 good price as well. Nice saw….just finished mine last week. What HP and is it single or 3ph?

-- My job is to give my kids things to discuss with their [email protected]

View Phred's profile


53 posts in 3991 days

#8 posted 01-12-2010 05:25 PM

I think the sheet metal floors were only made into the 40’s.. they stopped putting them in for some reason or another, I made us a wood floor that slips in, works better than nothing. The dust door is the only thing I have left to paint.. I lent my large compressor out, and just got it back, so I can finish cleaning up the back of it (which is still a little rusty) with my die grinder and a wire wheel. I still have the badge that goes on the front, once it’s done being painted, it’s good to go. It’s only a 1 HP 1Ph motor, but it is HEAVY!! runs great, I would like to get a 3 HP motor, but that’s another $600 I can wait to spend for now… Plus if I go to the 3 HP, I will have to murder the side of the case to make it fit and work properly, along with having to find a different dust cover for over the motor.. we’ll see, I don’t want to invest too much more in to this wonderful workhorse, I find that the 1 HP motor has more power than my 1.5HP Craftsman Contractor saw used to have.

-- But honey.. this new power tool will pay for itself when we re-do the kitchen!

View MedicKen's profile


1615 posts in 3733 days

#9 posted 01-13-2010 09:51 PM

Mine is 3ph and 2hp. There many 3hp motors out there that will fit without modifying the cabinet. I have found that 2hp is plenty, even ripping 8/4 walnut or maple. You might consider putting a want to buy on BOYD on the owwm site. You might be surprised what is available.

-- My job is to give my kids things to discuss with their [email protected]

View SnowyRiver's profile


51457 posts in 3751 days

#10 posted 01-13-2010 11:20 PM

Great job. Looks very nice.

-- Wayne - Plymouth MN

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