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Scroll Saw Tensioning Rod Replacement Problems

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Forum topic by LoyalAppleGeek posted 12-09-2016 08:32 PM 573 views 0 times favorited 7 replies Add to Favorites Watch
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LoyalAppleGeek

160 posts in 734 days


12-09-2016 08:32 PM

Topic tags/keywords: scroll saw threaded rod tensioning broken failed repair replacment question

Merry Christmas LumberJocks!

A couple weeks ago, the tensioning rod on my Craftsman Scroll Saw gave out. This wasn’t the best time that could have happened, considering the exciting Christmas gift making season is here. I took the rod in to match it to a length of threaded rod I could use as a replacement, but nobody in the area carries 6mm standard hardware. Not in threaded rod, all-thread carriage bolts, or anything of the like. Does anyone know of an online source ware I could find an 8” length of 6mm Standard threaded rod?

Thank you, and Merry Christmas again!


7 replies so far

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MrUnix

6017 posts in 2039 days


#1 posted 12-09-2016 08:41 PM

A quick google turned up tons of sources... including the usual suspects such as Graingers, Fastenal, etc… And the first one on the list was some M6-1.0 metric threaded rod at Lowes :)

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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LoyalAppleGeek

160 posts in 734 days


#2 posted 12-09-2016 09:07 PM

OK… Why in the world wasn’t it that easy for me? Ugh, thank you Brad. It’s perfect timing, we’ll be going into the big town tomorrow where we don’t usually go, so I can check by Lowes. None of the local hardware stores carry it, I totally blanked checking with Lowes. This was the fastest problem I’ve ever had solved LOL. Thank you again! Merry Christmas!

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LoyalAppleGeek

160 posts in 734 days


#3 posted 12-14-2016 03:52 PM

Alright, now I remember the other detail that made this difficult: the thread count. Lowes has threaded rod in 6mm diameter, but the thread count is too low on everything they have. So I’m back to searching online again.

Merry Christmas!

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MrUnix

6017 posts in 2039 days


#4 posted 12-14-2016 05:13 PM

Ouch. Standard M6 uses a 1.0mm thread pitch. While there are .75 and .5mm thread pitches on paper for that size, you will be hard pressed to actually find them.

Are you sure it’s metric? SAE 1/4” is almost the exact same size, and can be found in both 20 and 28 thread pitches. Do you know the thread pitch you need and/or do you have the model number of the saw… a lot of stuff can be cross referenced off the part number, so you might be able to get the exact specs for it or find a suitable replacement from another machine. Otherwise, you might need to do a little modification to get it to work… perhaps involving a tap/die :)

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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LoyalAppleGeek

160 posts in 734 days


#5 posted 12-14-2016 05:40 PM

Yep, I was looking into the modification thing too, as I’ve done that before. It doesn’t look overly promising here though due to several other pieces of specialty hardware that depend upon this rod size. The model number of the saw is 137-216160, you found that for me quite a while back in my first LumberJocks question. Thanks again for that ;-) I have no idea what the thread pitch is, the guy at the hardware store tested it on an assortment of nuts and said 6mm standard, but when I looked at 6mm standard threaded rod, the pitch is way to steep.

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MrUnix

6017 posts in 2039 days


#6 posted 12-14-2016 06:15 PM

From the manual, looks like this is what you need perhaps?

Link Bar (at searspartsdirect.com)
or
18102102 Link Bar (at ereplacementparts.com)
or

If nothing else, that would be a really easy part to make with the right sized threading die (or a metal lathe setup for metric threads). Perhaps you could find a machine shop near you to make one up. Can’t imagine they would charge you much for something so simple.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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LoyalAppleGeek

160 posts in 734 days


#7 posted 12-14-2016 06:34 PM

You’ve really gone to work on this case! That’s the one. My only concern is shipping charges, but I’ve got a part number to deal with now, that’s a great step. Thank you again Brad!

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