Shopsmith #1: Jigsaw part needed

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Blog entry by djn posted 07-10-2010 01:25 AM 4225 reads 0 times favorited 8 comments Add to Favorites Watch
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Hi All – I’m new to the forum, but an occassional user of my Shopsmith for 40 years. I was recently using the jigsaw when it started clattering loudly. I disassembled the lower gear box and found that the little nylon coupler than translates the rotating motion to vertical reciprocating motion had broken. Shopsmith no longer supports the jigsaw, so I’m stuck. Would any of you have an old one around that you have parted out? Let me know if you have any ideas. Thx.

8 comments so far

View cutmantom's profile


388 posts in 2454 days

#1 posted 07-10-2010 02:59 AM

could you possibly make one out of hard wood? or take the pieces to a machine shop and they should have no trouble making one out of aluminum

View djn's profile


5 posts in 2298 days

#2 posted 07-10-2010 03:49 AM

I’m fairly sure wood couldn’t take the stress and vibration. Basically it is 2 thin nylon (or some white plastic) sleeves that are orthogonal to each other, although it is fabricated from one piece. One sleeve slides onto a bar that sticks out from a wheel driven by the Shopsmith drive shaft. Given the asymetrical shape of the wheel, it also serves as a counterweight. So the weight of the nylon piece is important. The bar is parallel to the Shopsmith drive shaft, but offset about 1/2 inch. So it follows the circular motion of the shaft, in roughly a 1 inch circular path. The vertical componant of the circular motion creates the vertical motion of the jigsaw drive shaft. The horizontal componant of the motion is eliminated as the other sleeve slides back and forth on a horizontal rod. This rod is part of an assembly connected to the jigsaw drive shaft, so the sleeve forces the rod (and the jigsaw drive shaft) up and down with a stroke of roughly 1 inch, while sliding back and forth on the rod. All of this takes place in an oil bath.

View Joe Watson's profile

Joe Watson

316 posts in 2966 days

#3 posted 07-10-2010 05:57 AM

are you on the shopsmith group? you might post there and see if you have anyone there that would have one.

here is the link

what model do you have, I have an 10ER and i love it. i do have a jigsaw but alas only have the one coupler.

-- Got Wood?

View Joe Lyddon's profile

Joe Lyddon

9325 posts in 3472 days

#4 posted 07-10-2010 07:39 AM

Here is a good source for parts… BUT, I didn’t see Shopsmith…

Good Luck!

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: ... My Small Gallery:"

View wichle's profile


96 posts in 2366 days

#5 posted 07-10-2010 07:53 AM

I have a September 9th, 2009 article about 3D copying. There are many of these machines around the country. They will make a 3d pattern that a machine shop can use to make a metal part. The article is from the economist. It is too long to post but if you, or anyone, will provide an email address I’ll send you a copy of the article.


-- Bill, Michigan "People don't come preassebled, but are glued together by life"

View djn's profile


5 posts in 2298 days

#6 posted 07-10-2010 05:23 PM

Thanks to all for the comments. I did some serious surfing, and found a guy who has a few Shopsmiths, and has rebuilt several. As it happens, he had some nylon couplers made, and could sell me one for a reasonable price. If any of you need parts or have questions regarding Shopsmiths, you should check with him at Thanks again. Dave

View djn's profile


5 posts in 2298 days

#7 posted 07-12-2010 10:45 PM

All – Thanks so much for your advice and your warm welcome to LumberJocks. Some of you have asked about my projects. There have been many in the past, nothing worth bragging about, especially to you all. My current project is shown below … rebuiding the porch of a 100+ year-old home in Butte, MT. I’m using the jigsaw to fabricate some tooling which will allow me to center the old porch spindles on my Shopsmith lathe so I can more easily remove 100+ years of paint. I also have to replicate a bunch of new ones. I previously turned new column bases for the porch, which weren’t salvageable, out of sections of a glulam beam I bought on Craigslist. That was quite a chore, as any of you lathe woodworkers could testify to. However, the speed reducer I bought (also on Craigslist) for that project will come in handy for this one. All the best. Dave

View charlie49's profile


54 posts in 2254 days

#8 posted 01-27-2013 04:26 PM

This works well.

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