Brass wedge locks

[badtheba]

So far there is no improvement using the modification I did. Literally no difference at all in the likelihood that the wedge will get stuck, it gets stuck with the modified and unmodified wedge and they feel exactly the same. It's no better and no worse.

Two discoveries/conclusions I have made.

1. The wedge being out of round is a much worse detriment than I first believed. This causes the wedge to rock slightly in the bore, and dive down against the inside of the bore. It is not getting stuck on the bevel face necessarily, but rather inside of the bore and requires being tapped back "straight" to release. The only thing I can see fixing this would be a much longer rear wedge. The bolt is definitely long enough to accommodate a wedge up to 1/2" longer, but then the wedge could only be inserted into the carriage without the way tube in place, which wouldn't be desirable (I didn't check the headstock, but I think there's a lot more insertion room behind its bore).

2. The fact that the nut just slops around loose in the back of the rear wedge is a huge con. After inspecting these parts at great length I can see that being one of the major advantages to the brass wedges, that the brass is actually threaded.

I don't think there will be any satisfactory result other than wedge replacement at this point.

[badtheba]

I'm really glad I started with the newer 10ER with the one piece wedge for my first. I think I would have been really frustrated by this design if I had started with this one, and had a much worse first experience with Shopsmith if this were the one I was doing a complete restoration on.

I'm texting my father in law about his inventory of brass rod right now.

[rpd]

There is a set of 10E brass wedge locks for sale on the facebook, Shopsmith Fans Buy, Sell, and Wanted, page.
https://www.facebook.com/groups/298235127282459/

brasswedgelocks.jpg (25.55 KiB) Viewed 9328 times

I recently bought a set of files for the jigsaw from that seller and was very pleased with the transaction.

[badtheba]

There is a set of 10E brass wedge locks for sale on the facebook, Shopsmith Fans Buy, Sell, and Wanted, page.
https://www.facebook.com/groups/298235127282459/

brasswedgelocks.jpg

I recently bought a set of files for the jigsaw from that seller and was very pleased with the transaction.

Thanks for the heads up. Funny thing is, a couple weeks ago I posted on that group that I was ISO the set and there was some discussion

I just messaged the seller. Was considering paying about $26 off eBay for 7/8" brass rod, so the asking price doesn't seem too far out of line.

[everettdavis]

Sometimes it just helps to look around in other places
7/8” Brass Rod x 1 ft

BRR78 7/8 dia. Alloy 360 Brass Round - Metals Depot $49.83
https://www.metalsdepot.com/brass-produ ... -round-bar

Rod, Brass, 360, 7/8 Dia x 1 Ft L Item # 2ABK8 Mfr. Model # CURD00345 $25.10
https://www.grainger.com/product/GRAING ... -Rod-2ABK8

I normally don’t find things cheaper at Grainger and there are other sources.

360 Brass (Free Machining Brass)
Free Machining brass is the most commonly used of the brass rod and bar items. The presence of lead in the alloy creates a highly machinable material that can easily be cut and shaped into whatever you need.

C360 Free Machining Brass

Minimum Properties Ultimate Tensile Strength, psi 58,000
Yield Strength, psi 45,000
Elongation 25%
Rockwell Hardness B78

Chemistry
Copper (Cu) 60 - 63%
Zinc (Zn) 35.5%
Iron (Fe) 0.35% min
Lead (Pb) 2.5 - 3.7%

My status on that group still shows pending, so I can never see what they have for sale.

Everett

[badtheba]

Sometimes it just helps to look around in other places
7/8” Brass Rod x 1 ft

BRR78 7/8 dia. Alloy 360 Brass Round - Metals Depot $49.83
https://www.metalsdepot.com/brass-produ ... -round-bar

Rod, Brass, 360, 7/8 Dia x 1 Ft L Item # 2ABK8 Mfr. Model # CURD00345 $25.10
https://www.grainger.com/product/GRAING ... -Rod-2ABK8

I normally don’t find things cheaper at Grainger and there are other sources.

360 Brass (Free Machining Brass)
Free Machining brass is the most commonly used of the brass rod and bar items. The presence of lead in the alloy creates a highly machinable material that can easily be cut and shaped into whatever you need.

C360 Free Machining Brass

Minimum Properties Ultimate Tensile Strength, psi 58,000
Yield Strength, psi 45,000
Elongation 25%
Rockwell Hardness B78

Chemistry
Copper (Cu) 60 - 63%
Zinc (Zn) 35.5%
Iron (Fe) 0.35% min
Lead (Pb) 2.5 - 3.7%

My status on that group still shows pending, so I can never see what they have for sale.

Everett

I checked my normal source for all things metal (father in law) first. He didn't have 7/8 rod, but he said his preference would be to have me accurately measure the bores or bring the headstock to him so he could make them from brass stock to tighter tolerances.

I didn't think they necessarily needed to be tighter, as that might increase the chance of sticking (although a tighter tolerances seemingly would prevent the cast zinc ones from "rocking", or becoming out of round as easily).

At any rate, I should have the 10E originals in hand within a week. If I want to make a spare set off that sets measurements I can decide later.

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[badtheba]

My status on that group still shows pending, so I can never see what they have for sale.

That's surprising. Someone on here told me about the group, I sent the request, and was approved in less than ten minutes. I'd message them if I were you. It seems a worthwhile group to be a part of.

Also, the same guy rpd mentioned he bought from is who I'm getting this wedge set from. We messaged back and forth and he said he is slowly parting out a 10E. It might be worth it for you if your 10E needed any parts. Obviously if he had the brass locks it's an early one.


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[everettdavis]

PM me his contact info. I might be interested

Everett

[rpd]

PM me his contact info. I might be interested

Everett

The person in question is also a member on the Facebook, Shopsmith Owners Group, Pato Sendado.

[badtheba]

There is a set of 10E brass wedge locks for sale on the facebook, Shopsmith Fans Buy, Sell, and Wanted, page.
https://www.facebook.com/groups/298235127282459/

brasswedgelocks.jpg

I recently bought a set of files for the jigsaw from that seller and was very pleased with the transaction.

Thanks for posting here. It probably would have slipped me right by as I don't see every notification from that Facebook group.

I'm expecting them in the mail today.

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