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Woodturning (rec.crafts.woodturning) To discuss tools, techniques, styles, materials, shows and competitions, education and educational materials related to woodturning. All skill levels are welcome, from art turners to production turners, beginners to masters. |
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#1
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I am trying to identify a taper on a drive centre and it does not appear to
be a Morse taper. The dimensions I have are as follows: Length of taper 40mm (1.575") Large diameter 12mm (0.472") Small diameter 10.27mm (0.404") I measured the diameters as near the end of the taper as I could so please do not take these measurements as gospel - they are there or thereabouts. I suspect the taper is metric but I cannot find a source to prove this. Can anyone offer any help? Regards, T. |
#2
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In article , "Trevor" wrote:
I am trying to identify a taper on a drive centre and it does not appear to be a Morse taper. The dimensions I have are as follows: Length of taper 40mm (1.575") Large diameter 12mm (0.472") Small diameter 10.27mm (0.404") Amount of taper: 0.068" Taper per inch of length: 0.0432- I measured the diameters as near the end of the taper as I could so please do not take these measurements as gospel - they are there or thereabouts. I suspect the taper is metric but I cannot find a source to prove this. Can anyone offer any help? I think you have a #1 Morse taper. I measured one of mine: length of taper 1.850" large diameter 0.500" small diameter 0.420" amount of taper: 0.080" taper per inch of length: 0.0432+ In other words, the degree of taper on yours is essentially the same as the degree of taper on mine. Yours has a bit more at the narrow end than mine, and a bit less at the fat end, and it's shorter overall, but the angles are the same. I *know* mine is a #1 Morse. Sounds to me like yours is too. |
#3
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Beg , buy, borrow or steal a MT1 tapered fitment. Clean male & female
tapers. Chalk or ink the male taper. insert into spindle and twist once. remove straight out. If the coating is smeared evenly, that's your taper. In shorter words, fit , instead of measure. Turn to Safety, Arch Fortiter http://community.webtv.net/almcc/MacsMusings |
#4
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![]() "Arch" wrote: (clip) In shorter words, fit , instead of measure. ^^^^^^^^^^^^^^ Arch, that is much easier to do now that Doug has spoken. |
#5
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Right Leo,
.....and even easier if there is a machinist's handbook on the coffee table. ![]() I shudda suggested getting MT1 & MT2 to try, before Doug spoke. Turn to Safety, Arch Fortiter http://community.webtv.net/almcc/MacsMusings |
#6
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Thanks for the info. I will borrow a MT sleeve and check it against that.
I also have a revolving centre, again with strange dimensions (length). Is it possible that this may be a #2MT. Again I will try and borrow a suitable sleeve to try it. The dimensions a Length 50mm (1.968") Large diameter 17mm (0.669") Small diameter 14.5mm (0.571") Thanks again for your help. Regards, T "Doug Miller" wrote in message . .. In article , "Trevor" wrote: I am trying to identify a taper on a drive centre and it does not appear to be a Morse taper. The dimensions I have are as follows: Length of taper 40mm (1.575") Large diameter 12mm (0.472") Small diameter 10.27mm (0.404") Amount of taper: 0.068" Taper per inch of length: 0.0432- I measured the diameters as near the end of the taper as I could so please do not take these measurements as gospel - they are there or thereabouts. I suspect the taper is metric but I cannot find a source to prove this. Can anyone offer any help? I think you have a #1 Morse taper. I measured one of mine: length of taper 1.850" large diameter 0.500" small diameter 0.420" amount of taper: 0.080" taper per inch of length: 0.0432+ In other words, the degree of taper on yours is essentially the same as the degree of taper on mine. Yours has a bit more at the narrow end than mine, and a bit less at the fat end, and it's shorter overall, but the angles are the same. I *know* mine is a #1 Morse. Sounds to me like yours is too. |
#7
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In article , "Trevor" wrote:
Thanks for the info. I will borrow a MT sleeve and check it against that. I also have a revolving centre, again with strange dimensions (length). Is it possible that this may be a #2MT. Again I will try and borrow a suitable sleeve to try it. The dimensions a Length 50mm (1.968") Large diameter 17mm (0.669") Small diameter 14.5mm (0.571") Taper = 0.669 - 0.571 = 0.098" Taper per inch of length = 0.098 / 1.968 = 0.0498 Using the metric figures, taper per mm comes out at exactly 0.05 (2.5mm taper along 50 mm length). I think this is not a #2 MT. Here are my measurements on a drive center that came with my #2 MT lathe: Length 2.500 Large dia: 0.700" Small dia: 0.579" Taper = 0.700 - 0.579 = 0.121" Taper per inch of length = 0.121 / 2.500 = 0.484 -- Regards, Doug Miller (alphageek-at-milmac-dot-com) Get a copy of my NEW AND IMPROVED TrollFilter for NewsProxy/Nfilter by sending email to autoresponder at filterinfo-at-milmac-dot-com You must use your REAL email address to get a response. |
#8
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![]() "Doug Miller" wrote in message .. . In article , "Trevor" wrote: Thanks for the info. I will borrow a MT sleeve and check it against that. I also have a revolving centre, again with strange dimensions (length). Is it possible that this may be a #2MT. Again I will try and borrow a suitable sleeve to try it. The dimensions a Length 50mm (1.968") Large diameter 17mm (0.669") Small diameter 14.5mm (0.571") here are the 'theoretical' dimensions for a Morse #2 taper, may be of some help CBII ---------------------------------------------------------------------------- - Taper Name Large Taper/ Taper/ Angle Small Length End Foot Inch From End Center ------------------------------------------------------------------------- #2 Morse 0.7000 .5994 . 0500 1.4307 0.5720 2.56 ------------------------------------------------------------------- Taper = 0.669 - 0.571 = 0.098" Taper per inch of length = 0.098 / 1.968 = 0.0498 Using the metric figures, taper per mm comes out at exactly 0.05 (2.5mm taper along 50 mm length). I think this is not a #2 MT. Here are my measurements on a drive center that came with my #2 MT lathe: Length 2.500 Large dia: 0.700" Small dia: 0.579" Taper = 0.700 - 0.579 = 0.121" Taper per inch of length = 0.121 / 2.500 = 0.484 -- Regards, Doug Miller (alphageek-at-milmac-dot-com) Get a copy of my NEW AND IMPROVED TrollFilter for NewsProxy/Nfilter by sending email to autoresponder at filterinfo-at-milmac-dot-com You must use your REAL email address to get a response. |
#9
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#10
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I am trying to identify a taper on a drive centre and it does not appear
to be a Morse taper. The dimensions I have are as follows: I suspect the taper is metric but I cannot find a source to prove this. Let's face it. If its a wood lathe, then the chances of it being a Morse Taper is in the vicinity of 99 out of a 100. Rather than 'cuss and discuss' it, why not just try a MT and see if it works? Dan |
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