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brazing broken teeth of 3-jaw chuck

[email protected] All Messages By This Member #59482 Hello, ? I wanted to ask your advice. ? Unfortunately, the 3-jaw chuck slipped out of my hands and fell to the ground. From the hit to the jaw n. 3 broke 3 teeth. ? Luckily I had another original 3-jaw chuck but I would still like to recover this broken one too. ? Initially the idea was to make a small hole (0.5mm) on each tooth to insert a small harmonic steel wire to be inserted into an adjacent hole directly on the jaw. This is to have a support for brazing with castolin 8103. ? Unfortunately I was unable to drill the steel of the tooth. At this point the idea is to braze directly by inventing a way to keep the teeth in position while I heat the piece. ? Have any of you ever experienced something like this. Do you think brazing can hold up? ? Thank you
clankennedy2004 All Messages By This Member #59483 UNSAFE TO DO SO. BIN IT ! On Tuesday, 14 March 2023 at 19:03:12 GMT, niczano@... <niczano@...> wrote: Hello, ? I wanted to ask your advice. ? Unfortunately, the 3-jaw chuck slipped out of my hands and fell to the ground. From the hit to the jaw n. 3 broke 3 teeth. ? Luckily I had another original 3-jaw chuck but I would still like to recover this broken one too. ? Initially the idea was to make a small hole (0.5mm) on each tooth to insert a small harmonic steel wire to be inserted into an adjacent hole directly on the jaw. This is to have a support for brazing with castolin 8103. ? Unfortunately I was unable to drill the steel of the tooth. At this point the idea is to braze directly by inventing a way to keep the teeth in position while I heat the piece. ? Have any of you ever experienced something like this. Do you think brazing can hold up? ? Thank you
Bill in OKC too All Messages By This Member #59486 Brazing should hold up, but you're going to have to get the broken teeth in exactly the right place for each of the three teeth. Do you have enough fire brick or something similar to make a brazing hearth? Something like this:? Doesn't have to be as fancy as she's trying, but it will give you a space to get your parts up to heat, and hold the jaw while you hold the broken teeth in place. Back when I was a younger man, I used pieces of wood that were well charred to do the same thing for jewelry work. you could pin the parts in place, then use a probe to hold small parts. Something like these:??Not that you'd have to buy them. You can make your own rather easily. Basically, you pin the part you're brazing to in place so it cannot move, heat it until the flux melts and coats the joint area, flux the part that is getting brazed in as well. Put a bit of the brazing rod on the spot where it needs to go, and melt off a bit of the casting rod. It should coat the area. Put the part to be brazed back in place, and use the pick to press it into place. If there is too much brazing material, it should be displaced when you press down on the bit you're brazing back in place.? Good luck! Bill in OKC William R. Meyers, MSgt, USAF(Ret.) Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY! Improvise, Adapt, and Overcome. Physics doesn't care about your schedule. The only reason I know anything is because I've done it wrong enough times to START to know better. Expect in one hand, expectorate in the other. See which one gets full first. On Tuesday, March 14, 2023 at 02:03:12 PM CDT, niczano@... <niczano@...> wrote: Hello, ? I wanted to ask your advice. ? Unfortunately, the 3-jaw chuck slipped out of my hands and fell to the ground. From the hit to the jaw n. 3 broke 3 teeth. ? Luckily I had another original 3-jaw chuck but I would still like to recover this broken one too. ? Initially the idea was to make a small hole (0.5mm) on each tooth to insert a small harmonic steel wire to be inserted into an adjacent hole directly on the jaw. This is to have a support for brazing with castolin 8103. ? Unfortunately I was unable to drill the steel of the tooth. At this point the idea is to braze directly by inventing a way to keep the teeth in position while I heat the piece. ? Have any of you ever experienced something like this. Do you think brazing can hold up? ? Thank you
Bill in OKC too All Messages By This Member #59487 I would disagree. Brazed joints are nearly as strong as the base metal, and these teeth don't see a great deal of force applied.? Getting them in the right place and such is more problematic, but it's not impossible. Jewelers use different grades (melting temperatures) while silver soldering, which is essentially brazing with silver brazing rods. it's been close to 50 years since I've done such things, but it is doable. Well, maybe not with the shaky hands I have now...? But still worth a try.? Bill in OKC William R. Meyers, MSgt, USAF(Ret.) Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY! Improvise, Adapt, and Overcome. Physics doesn't care about your schedule. The only reason I know anything is because I've done it wrong enough times to START to know better. Expect in one hand, expectorate in the other. See which one gets full first. On Tuesday, March 14, 2023 at 02:07:20 PM CDT, clankennedy2004 via groups.io <clankennedy2004@...> wrote: UNSAFE TO DO SO. BIN IT ! On Tuesday, 14 March 2023 at 19:03:12 GMT, niczano@... <niczano@...> wrote: Hello, ? I wanted to ask your advice. ? Unfortunately, the 3-jaw chuck slipped out of my hands and fell to the ground. From the hit to the jaw n. 3 broke 3 teeth. ? Luckily I had another original 3-jaw chuck but I would still like to recover this broken one too. ? Initially the idea was to make a small hole (0.5mm) on each tooth to insert a small harmonic steel wire to be inserted into an adjacent hole directly on the jaw. This is to have a support for brazing with castolin 8103. ? Unfortunately I was unable to drill the steel of the tooth. At this point the idea is to braze directly by inventing a way to keep the teeth in position while I heat the piece. ? Have any of you ever experienced something like this. Do you think brazing can hold up? ? Thank you
Peter Vernaci All Messages By This Member #59492 开云体育 Hi, ? I did the same thing, dropped the chuck and broke a tooth on a jaw. After months of searching I found a seller on eBay that had individual jaws. The seller is . I was able to buy one jaw, but I don’t know what they have now. Try his online store. ? Pete Vernaci ? Sent from for Windows ? toggle quoted message Show quoted text From: niczano@... Sent: Tuesday, March 14, 2023 12:03 PM To: [email protected] Subject: [Unimat] brazing broken teeth of 3-jaw chuck ? Hello, ? I wanted to ask your advice. ? Unfortunately, the 3-jaw chuck slipped out of my hands and fell to the ground. From the hit to the jaw n. 3 broke 3 teeth. ? Luckily I had another original 3-jaw chuck but I would still like to recover this broken one too. ? Initially the idea was to make a small hole (0.5mm) on each tooth to insert a small harmonic steel wire to be inserted into an adjacent hole directly on the jaw. This is to have a support for brazing with castolin 8103. ? Unfortunately I was unable to drill the steel of the tooth. At this point the idea is to braze directly by inventing a way to keep the teeth in position while I heat the piece. ? Have any of you ever experienced something like this. Do you think brazing can hold up? ? Thank you ? E50864DF89B84E34883CDC0D13DE4B5D.png
Jkle379184 All Messages By This Member #59493 ?You could try silver soldering it back on.? ?Jeff toggle quoted message Show quoted text -----Original Message----- From: Bill in OKC too via groups.io <wmrmeyers@...> To: [email protected] <[email protected]> Sent: Tue, Mar 14, 2023 3:53 pm Subject: Re: [Unimat] brazing broken teeth of 3-jaw chuck Brazing should hold up, but you're going to have to get the broken teeth in exactly the right place for each of the three teeth. Do you have enough fire brick or something similar to make a brazing hearth? Something like this:? Doesn't have to be as fancy as she's trying, but it will give you a space to get your parts up to heat, and hold the jaw while you hold the broken teeth in place. Back when I was a younger man, I used pieces of wood that were well charred to do the same thing for jewelry work. you could pin the parts in place, then use a probe to hold small parts. Something like these:??Not that you'd have to buy them. You can make your own rather easily. Basically, you pin the part you're brazing to in place so it cannot move, heat it until the flux melts and coats the joint area, flux the part that is getting brazed in as well. Put a bit of the brazing rod on the spot where it needs to go, and melt off a bit of the casting rod. It should coat the area. Put the part to be brazed back in place, and use the pick to press it into place. If there is too much brazing material, it should be displaced when you press down on the bit you're brazing back in place.? Good luck! Bill in OKC William R. Meyers, MSgt, USAF(Ret.) Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY! Improvise, Adapt, and Overcome. Physics doesn't care about your schedule. The only reason I know anything is because I've done it wrong enough times to START to know better. Expect in one hand, expectorate in the other. See which one gets full first. On Tuesday, March 14, 2023 at 02:03:12 PM CDT, niczano@... <niczano@...> wrote: Hello, ? I wanted to ask your advice. ? Unfortunately, the 3-jaw chuck slipped out of my hands and fell to the ground. From the hit to the jaw n. 3 broke 3 teeth. ? Luckily I had another original 3-jaw chuck but I would still like to recover this broken one too. ? Initially the idea was to make a small hole (0.5mm) on each tooth to insert a small harmonic steel wire to be inserted into an adjacent hole directly on the jaw. This is to have a support for brazing with castolin 8103. ? Unfortunately I was unable to drill the steel of the tooth. At this point the idea is to braze directly by inventing a way to keep the teeth in position while I heat the piece. ? Have any of you ever experienced something like this. Do you think brazing can hold up? ? Thank you
Bill in OKC too All Messages By This Member #59495 Silver solder would be a good choice, particularly if he had the correct hard, medium & easy solders, but he already has a brazing rod that should work if he can get his parts hot enough, and keep them that way long enough to get the broken teeth in place just right. Good thing about brazing, if you flub it up, you can try again. This I know from personal experience. :) Bill in OKC? William R. Meyers, MSgt, USAF(Ret.) Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY! Improvise, Adapt, and Overcome. Physics doesn't care about your schedule. The only reason I know anything is because I've done it wrong enough times to START to know better. Expect in one hand, expectorate in the other. See which one gets full first. On Tuesday, March 14, 2023 at 05:12:48 PM CDT, Jkle379184 via groups.io <jkle379184@...> wrote: ?You could try silver soldering it back on.? ?Jeff toggle quoted message Show quoted text -----Original Message----- From: Bill in OKC too via groups.io <wmrmeyers@...> To: [email protected] <[email protected]> Sent: Tue, Mar 14, 2023 3:53 pm Subject: Re: [Unimat] brazing broken teeth of 3-jaw chuck Brazing should hold up, but you're going to have to get the broken teeth in exactly the right place for each of the three teeth. Do you have enough fire brick or something similar to make a brazing hearth? Something like this:? Doesn't have to be as fancy as she's trying, but it will give you a space to get your parts up to heat, and hold the jaw while you hold the broken teeth in place. Back when I was a younger man, I used pieces of wood that were well charred to do the same thing for jewelry work. you could pin the parts in place, then use a probe to hold small parts. Something like these:??Not that you'd have to buy them. You can make your own rather easily. Basically, you pin the part you're brazing to in place so it cannot move, heat it until the flux melts and coats the joint area, flux the part that is getting brazed in as well. Put a bit of the brazing rod on the spot where it needs to go, and melt off a bit of the casting rod. It should coat the area. Put the part to be brazed back in place, and use the pick to press it into place. If there is too much brazing material, it should be displaced when you press down on the bit you're brazing back in place.? Good luck! Bill in OKC William R. Meyers, MSgt, USAF(Ret.) Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY! Improvise, Adapt, and Overcome. Physics doesn't care about your schedule. The only reason I know anything is because I've done it wrong enough times to START to know better. Expect in one hand, expectorate in the other. See which one gets full first. On Tuesday, March 14, 2023 at 02:03:12 PM CDT, niczano@... <niczano@...> wrote: Hello, ? I wanted to ask your advice. ? Unfortunately, the 3-jaw chuck slipped out of my hands and fell to the ground. From the hit to the jaw n. 3 broke 3 teeth. ? Luckily I had another original 3-jaw chuck but I would still like to recover this broken one too. ? Initially the idea was to make a small hole (0.5mm) on each tooth to insert a small harmonic steel wire to be inserted into an adjacent hole directly on the jaw. This is to have a support for brazing with castolin 8103. ? Unfortunately I was unable to drill the steel of the tooth. At this point the idea is to braze directly by inventing a way to keep the teeth in position while I heat the piece. ? Have any of you ever experienced something like this. Do you think brazing can hold up? ? Thank you
Quinn Golden All Messages By This Member #59505 A seller on eBay has a set available, 58$ plus 8 for freight. ?I have purchased from him in the past with no issues.?
Herman de Leeuw All Messages By This Member #59506 开云体育 You might also want to explore the emcounimat.nl site, a new UNIMAT SL 3 jaw chuck sells there for €78 - not sure about freight cost to US but rather than just 3 jaws, this will get you a complete new chuck. Verzonden vanaf mijn Galaxy -------- Oorspronkelijk bericht -------- Van: Quinn Golden <quinngolden@...> Datum: 15-03-2023 14:14 (GMT+01:00) Aan: niczano@..., [email protected] Onderwerp: Re: [Unimat] brazing broken teeth of 3-jaw chuck A seller on eBay has a set available, 58$ plus 8 for freight. ?I have purchased from him in the past with no issues.?
Peter ashby All Messages By This Member #59507 it would seem that the jaws are hardened, so the act of brazing would soften them, so you might be able to soften them and drill tap and insert screws to replace the tooth, then file the tooth to shape and then reharden the jaw. toggle quoted message Show quoted text ------ Original Message ------ From "Herman de Leeuw via groups.io" <herman.deleeuw@...> To [email protected]; quinngolden@...; niczano@... Date 15/03/2023 14:40:02 Subject Re: [Unimat] brazing broken teeth of 3-jaw chuck You might also want to explore the emcounimat.nl site, a new UNIMAT SL 3 jaw chuck sells there for €78 - not sure about freight cost to US but rather than just 3 jaws, this will get you a complete new chuck. Verzonden vanaf mijn Galaxy -------- Oorspronkelijk bericht -------- Van: Quinn Golden <quinngolden@...> Datum: 15-03-2023 14:14 (GMT+01:00) Aan: niczano@..., [email protected] Onderwerp: Re: [Unimat] brazing broken teeth of 3-jaw chuck A seller on eBay has a set available, 58$ plus 8 for freight. ?I have purchased from him in the past with no issues.?
Bill in OKC too All Messages By This Member #59508 Got one that may not be new, but it's half the price of the other one I saw on eBay USA:? Bill in OKC William R. Meyers, MSgt, USAF(Ret.) Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY! Improvise, Adapt, and Overcome. Physics doesn't care about your schedule. The only reason I know anything is because I've done it wrong enough times to START to know better. Expect in one hand, expectorate in the other. See which one gets full first. On Wednesday, March 15, 2023 at 09:40:09 AM CDT, Herman de Leeuw via groups.io <herman.deleeuw@...> wrote: You might also want to explore the emcounimat.nl site, a new UNIMAT SL 3 jaw chuck sells there for €78 - not sure about freight cost to US but rather than just 3 jaws, this will get you a complete new chuck. Verzonden vanaf mijn Galaxy -------- Oorspronkelijk bericht -------- Van: Quinn Golden <quinngolden@...> Datum: 15-03-2023 14:14 (GMT+01:00) Aan: niczano@..., [email protected] Onderwerp: Re: [Unimat] brazing broken teeth of 3-jaw chuck A seller on eBay has a set available, 58$ plus 8 for freight. ?I have purchased from him in the past with no issues.?
[email protected] All Messages By This Member #59510 Thanks everyone for the help! As soon as the wind drops a bit outside, I try brazing. Having the other chuck I will use this one for less stressful applications. I live in Italy, unfortunately the ebay seller of the jaw set does not ship outside the USA. I also thank Herman for the link to the Dutch site, it has so many things for human prices! I will buy something from there for sure. ? Nic
Herman de Leeuw All Messages By This Member #59512 开云体育 Glad to hear that you liked the emcounimat.nl site, Nic. One more option is to search marktplaats.nl for unimats - currently there are at least 1 SL, an Unimat 3, Unimat 5 and even an unimat 8 if I'm not mistaken. Many at quite reasonable prices. Verzonden vanaf mijn Galaxy -------- Oorspronkelijk bericht -------- Van: niczano@... Datum: 15-03-2023 21:02 (GMT+01:00) Aan: Bill in OKC too <wmrmeyers@...>, [email protected] Onderwerp: Re: [Unimat] brazing broken teeth of 3-jaw chuck Thanks everyone for the help! As soon as the wind drops a bit outside, I try brazing. Having the other chuck I will use this one for less stressful applications. I live in Italy, unfortunately the ebay seller of the jaw set does not ship outside the USA. I also thank Herman for the link to the Dutch site, it has so many things for human prices! I will buy something from there for sure. ? Nic
phill005 All Messages By This Member #59518 ?Herman de Leeuw Mar 15???#59506??? You might also want to explore the emcounimat.nl site, a new UNIMAT SL 3 jaw chuck sells there for €78 - not sure about freight cost to US but rather than just 3 jaws, this will get you a complete new chuck. Have been in touch with the owner Jan unfortunately he does not ship out to UK do to too much hassle with customs and tax?not sure about other countries. Phill
Carl All Messages By This Member #59519 开云体育 Hi Gang: If you know anyone in the EU, have Jan ship to them. Then work out shipping / customs with them. The jaws would fit in a small padded envelope. I did this for a friend in France. It worked out to two pallet loads of toy trains. Carl. On 3/16/2023 3:45 AM, phill005 via groups.io wrote: toggle quoted message Show quoted text ?Herman de Leeuw Mar 15???#59506??? You might also want to explore the emcounimat.nl site, a new UNIMAT SL 3 jaw chuck sells there for €78 - not sure about freight cost to US but rather than just 3 jaws, this will get you a complete new chuck. Have been in touch with the owner Jan unfortunately he does not ship out to UK do to too much hassle with customs and tax?not sure about other countries. Phill

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