开云体育

Jupiter 1 , pencil sharpener

Johannes All Messages By This Member #119942 开云体育 Thanks for all the tips. I put a big "toothpick" into the hole and twisted, and the best I found was 0,6+ pitch on a ca 3 mm hole, and do to the big .xls from Kerry , a 1/8 is very close, and it will be tested out tomorrow. As you can see from the picture, it is a very short hole. So, 55 or 60 deg is not so important. There are some restorations on YouTube , and I will try to contact them for a picture of the head of the screw. Johannes Mexico
Pierre-Raymond Rondelle All Messages By This Member #119952 开云体育 Metric pitches have changed around 1968 / 1968: Dia??? old pitch ? ??? current pitch 3mm??? 0.6mm??? ??? ??? 0.50mm 3.5mm 0.7mm??? ??? ??? 0.6mm 4mm??? 0.75mm?? ?????? 0.70mm 5mm??? 0.9mm??????????? 0.8mm above they didn't change. On 26.07.24 06:57, Johannes via groups.io wrote: toggle quoted message Show quoted text Thanks for all the tips. I put a big "toothpick" into the hole and twisted, and the best I found was 0,6+ pitch on a ca 3 mm hole, and do to the big .xls from Kerry , a 1/8 is very close, and it will be tested out tomorrow. As you can see from the picture, it is a very short hole. So, 55 or 60 deg is not so important. There are some restorations on YouTube , and I will try to contact them for a picture of the head of the screw. Johannes Mexico Attachments: IMG_2893.JPG
Pierre-Raymond Rondelle All Messages By This Member #119953 开云体育 In addition, if you turn your own screws with an imperial lathe, make sure that you use a 60° tool, NOT 55°, otherwise, especially with? small screws, it will easily break. On 27.07.24 12:28, Pierre-Raymond Rondelle via groups.io wrote: toggle quoted message Show quoted text Metric pitches have changed around 1968 / 1968: Dia??? old pitch ? ??? current pitch 3mm??? 0.6mm??? ??? ??? 0.50mm 3.5mm 0.7mm??? ??? ??? 0.6mm 4mm??? 0.75mm?? ?????? 0.70mm 5mm??? 0.9mm??????????? 0.8mm above they didn't change. On 26.07.24 06:57, Johannes via groups.io wrote: Thanks for all the tips. I put a big "toothpick" into the hole and twisted, and the best I found was 0,6+ pitch on a ca 3 mm hole, and do to the big .xls from Kerry , a 1/8 is very close, and it will be tested out tomorrow. As you can see from the picture, it is a very short hole. So, 55 or 60 deg is not so important. There are some restorations on YouTube , and I will try to contact them for a picture of the head of the screw. Johannes Mexico Attachments: IMG_2893.JPG
mike allen All Messages By This Member #119956 开云体育 Interesting . MY tap set has all 8 of the pitches in Pierre's list below , that set only goes up to 12 mm .? It ca,e to be @ my first motorcycle which is right @ that time frame . I can look at just about any SAE bolt & tell ya what pitch it is , I look at a metric & I'm lost . thanks animal On 7/27/24 3:28 AM, Pierre-Raymond Rondelle via groups.io wrote: toggle quoted message Show quoted text Metric pitches have changed around 1968 / 1968: Dia??? old pitch ? ??? current pitch 3mm??? 0.6mm??? ??? ??? 0.50mm 3.5mm 0.7mm??? ??? ??? 0.6mm 4mm??? 0.75mm?? ?????? 0.70mm 5mm??? 0.9mm??????????? 0.8mm above they didn't change. On 26.07.24 06:57, Johannes via groups.io wrote: Thanks for all the tips. I put a big "toothpick" into the hole and twisted, and the best I found was 0,6+ pitch on a ca 3 mm hole, and do to the big .xls from Kerry , a 1/8 is very close, and it will be tested out tomorrow. As you can see from the picture, it is a very short hole. So, 55 or 60 deg is not so important. There are some restorations on YouTube , and I will try to contact them for a picture of the head of the screw. Johannes Mexico Attachments: IMG_2893.JPG
Ralph Lehotsky All Messages By This Member #119957 Have you looked at Whitworth threads -? ? https://en.wikipedia.org/wiki/British_Standard_Whitworth ? From Wikipedia - ? British Standard Whitworth?(BSW) is an?-based??standard, devised and specified by??in 1841 and later adopted as a?... ? The Whitworth thread was the world's first national screw thread standard,?devised and specified by??in 1841. ? Just a thought... ? ralphie ?
davesmith1800 All Messages By This Member #119958 ?The biggest problem was taps for odd sizes. The smaller the harder. A large size I can single point.? ? Try this almost all fire hydrant use LH pipe threads but hose are different sizes The hydrant manufacturers just changed have change the one brass part for different hose sizes. ? It is something you every day and knows of threads. ? Dave? ? On Sat, Jul 27, 2024 at 12:30 PM, Ralph Lehotsky wrote: toggle quoted message Show quoted text Have you looked at Whitworth threads -? ? https://en.wikipedia.org/wiki/British_Standard_Whitworth ? From Wikipedia - ? British Standard Whitworth?(BSW) is an?-based??standard, devised and specified by??in 1841 and later adopted as a?... ? The Whitworth thread was the world's first national screw thread standard,?devised and specified by??in 1841. ? Just a thought... ? ralphie ?
DAVID WILLIAMS All Messages By This Member #119959 开云体育 Dear Dave, I know this company has been mentioned before, but it may be worth looking at? Tracy Tools in the UK ? www.tracytools.com I hope this is useful.? They sell a wide range of odd size taps etc., as well as the usual ones. (I’ve used them for years.) They always seem to include their latest catalogue, which I find useful. David? toggle quoted message Show quoted text On 28 Jul 2024, at 03:35, davesmith1800 <davesmith1@...> wrote: ? ?The biggest problem was taps for odd sizes. The smaller the harder. A large size I can single point.? ? Try this almost all fire hydrant use LH pipe threads but hose are different sizes The hydrant manufacturers just changed have change the one brass part for different hose sizes. ? It is something you every day and knows of threads. ? Dave? ? On Sat, Jul 27, 2024 at 12:30 PM, Ralph Lehotsky wrote: Have you looked at Whitworth threads -? ? https://en.wikipedia.org/wiki/British_Standard_Whitworth ? From Wikipedia - ? British Standard Whitworth?(BSW) is an?-based??standard, devised and specified by??in 1841 and later adopted as a?... ? The Whitworth thread was the world's first national screw thread standard,?devised and specified by??in 1841. ? Just a thought... ? ralphie ?
davesmith1800 All Messages By This Member #119960 Back 1980's a special tap under ?" to made about $100.00. ? Dave? ? ? On Sun, Jul 28, 2024 at 12:21 AM, DAVID WILLIAMS wrote: toggle quoted message Show quoted text Dear Dave, ? I know this company has been mentioned before, but it may be worth looking at? Tracy Tools in the UK ? www.tracytools.com I hope this is useful.? They sell a wide range of odd size taps etc., as well as the usual ones. (I’ve used them for years.) They always seem to include their latest catalogue, which I find useful. ? David? ? On 28 Jul 2024, at 03:35, davesmith1800 <davesmith1@...> wrote: ?The biggest problem was taps for odd sizes. The smaller the harder. A large size I can single point.? ? Try this almost all fire hydrant use LH pipe threads but hose are different sizes The hydrant manufacturers just changed have change the one brass part for different hose sizes. ? It is something you every day and knows of threads. ? Dave? ? On Sat, Jul 27, 2024 at 12:30 PM, Ralph Lehotsky wrote: Have you looked at Whitworth threads -? ? https://en.wikipedia.org/wiki/British_Standard_Whitworth ? From Wikipedia - ? British Standard Whitworth?(BSW) is an?-based??standard, devised and specified by??in 1841 and later adopted as a?... ? The Whitworth thread was the world's first national screw thread standard,?devised and specified by??in 1841. ? Just a thought... ? ralphie ?
paul mcclintic All Messages By This Member #119961 Look at a youtube video "restoration of an antique German pencil sharpener". It may help with the shape of your screws. They may even be able to provide you with some measurements of the screws in question if they still have this item. Paul M

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