Drawbar Question - too short
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What collet nose adapter?are you using?? The original Dalton 3C adapter did not have a flange on it and was flush to the end of the spindle thread when installed.? the picture shows an original 3C adapter and thread guard.? On Wed, Feb 12, 2025 at 1:52?PM pling via <pinglis74=[email protected]> wrote:
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As to a shorter spindle yes the Lot 2 was a bit shorter but the Lot 3 4 and 5 all have the same length spindle. The picture shows what an original Dalton draw bar looked like.? They all had the red plastic?hand wheel. On Wed, Feb 12, 2025 at 2:06?PM Dennis Turk via <dennisturk448=[email protected]> wrote:
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That won't work.? You could shorten the shoulder of the draw tub that buts up against the end of the spindle to add length to the tube,? The original collet adapters were not very hard and did not hold up very well.? They were prone to damage when you? tried to remove them from?the spindle. I think in all the Daltons I have I only have one or two of the originals the rest are the ones like you have that were actually used on all 9 inch?South Bend lathes. The picture included is what I think your adapter looks like.? On Wed, Feb 12, 2025 at 4:11?PM pling via <pinglis74=[email protected]> wrote:
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Hi Peter I have Dalton as well as SB and Hardinge 3C collets.? They only vary a couple of thousands?in outside?thread diameter but that is not the critical dimension.? The?pitch diameter?of the thread? is what counts, not the outside diameter.? If your collets slide in and out of the threaded end of the draw tube this is very odd.? It may indicate that the thread in the draw tube is totally?worn out as I have seen this on a couple of SB draw tubes.? Especially?on the lever operated collet closer as they can exert way more force than a hand wheel draw bar. As to lever operated Dalton draw bar setups they are very rare.? I have one for a Lot 6 and Dalton 9 inch but do not have one for the smaller lathe.? I only know of one that is owned by a guy near Chicago and he loaned it to me when we exhibited?at the NAMEs model engineering show in 2016.? Ralph also has many other Dalton accessories we only see in catalogs. Pictures attached were taken when Ralph loans?me his lever operated collet closer.? Just some information guys. On Sat, Mar 1, 2025 at 9:31?AM pling via <pinglis74=[email protected]> wrote: Well... I've got a problem.? I ordered a 3C Collet Draw Bar from Ebay |
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Some additional information.? A lever operated collet closer had to be ordered when purchasing a Dalton lathe.? The casting that supports the end door hinge for a lever operated collet closer lathe is totally different that what most have.? The casting has to support the end of the lever collet handle.? Also the casting that covers?to pupper part of the spindle?is also special to a lever operated collet closer as it has to have the two pins that support?the tilt up collet closer guard. On Sat, Mar 1, 2025 at 11:35?AM Dennis Turk via <dennisturk448=[email protected]> wrote:
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One other thing I forgot.? The end gear on the end of the spindle is also special as it has an extended sleeve that supports the lever operated closer to the end of the spindle.? The lathe in the picture was originally a pedal powered lathe that I found in California.? It was missing many things including the pedal setup as well as the tail stock?and compound slide.? What remained was in almost like all new condition and as I had the missing parts I was able to complete the lathe.? I also used a cast iron pedestal?for mounting it as it originally?had a Lot 6 lathe secured to it. The chip tray is original to the pedal?lathe. The last picture is of how the lathe was displayed at my business building along with 29 other restored lathes, shapers and drill presses. After selling my business in ;2019 all these display machines had to be removed and most of them are now in storage at my home.? Anybody need a lathe got lots of them:-)))) On Sat, Mar 1, 2025 at 11:40?AM Dennis Turk via <dennisturk448=[email protected]> wrote:
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Dennis Turk
