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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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New Lathe Problems
I've just bought a new lathe that has a few issues.
1. The tail stock hits the inside of the saddle lifting it off the way. I've spoken to the guy at the shop and he wants to just swap the tail stock with one off the demo lathe he has. Will this be ok or are the tail stocks fitted to each lathe? 2. The change gears are misaligned. The smallest gear is 10 mm thick, the gear it drives it 8.3 mm thick. They are offset by 2.8 mm, is this normal or should I pack the small gear out 2.8 mm? any links on setting up lathes for noobs appreciated Thanks in advance |
#2
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New Lathe Problems
On Mar 20, 8:29*am, "stu" no where just yet wrote:
I've just bought a new lathe that has a few issues. 1. The tail stock hits the inside of the saddle lifting it off the way. I've spoken to the guy at the shop and he wants to just swap the tail stock with one off the demo lathe he has. Will this be ok or are the tail stocks fitted to each lathe? Thanks in advance Put a center in both the headstock and tail stock. IF the height of the centers is the same, then the tail stock will be fine. Dan |
#3
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New Lathe Problems
I'm going to guess you're buying a lathe of Asian origin. Very common to
have issues like this. get as much as you can out of the vendor. From there, many consider these lathes "a work in progress". You'll need to modify it for nice performance. I've seen threads on this NG, at CNCzone.com and especially in Home Shop Machinist magazine. There's an index of back issue articles on their website. Karl |
#4
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New Lathe Problems
You should tell the group what the make and model is, and maybe where
you got it. This can help you to get specific answers. If you talked to the guy about the tail stock, I'd also talk to him about the gears and the alignment. As another poster said, get as much as you can from the vendor AS SOON AS YOU CAN. You might also try googling the lathe's model and mfr, looking for forums, etc. which might be devoted to that tool. I can't imagine 2 tailstocks being within a tenth or two of each other. If the one you have IS well aligned, maybe you should look into a little filing of non-critical dimensions. Pete Stanaitis ------------------ stu wrote: I've just bought a new lathe that has a few issues. 1. The tail stock hits the inside of the saddle lifting it off the way. I've spoken to the guy at the shop and he wants to just swap the tail stock with one off the demo lathe he has. Will this be ok or are the tail stocks fitted to each lathe? 2. The change gears are misaligned. The smallest gear is 10 mm thick, the gear it drives it 8.3 mm thick. They are offset by 2.8 mm, is this normal or should I pack the small gear out 2.8 mm? any links on setting up lathes for noobs appreciated Thanks in advance |
#5
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New Lathe Problems
The lathe is the same as
https://www.machineryhouse.com.au/Pr...stockCode=L183 But a different "brand". Mine has a longer bed and no chuck guard. I'll try googling but all the suppliers in Australia seem to have their own "brand". I don't have the lathe set up yet so cant check the alignment. As far as filing goes, they aren't hit by much so even filing the paint off (If the paints thick) might give me some clearance, but wouldn't I want 5 mm or so clearance so that swarf can't get trapped between them? I'm start to realise just how much I have forgotten since school and just how much I never knew. "spaco" wrote in message .. . You should tell the group what the make and model is, and maybe where you got it. This can help you to get specific answers. If you talked to the guy about the tail stock, I'd also talk to him about the gears and the alignment. As another poster said, get as much as you can from the vendor AS SOON AS YOU CAN. You might also try googling the lathe's model and mfr, looking for forums, etc. which might be devoted to that tool. I can't imagine 2 tailstocks being within a tenth or two of each other. If the one you have IS well aligned, maybe you should look into a little filing of non-critical dimensions. Pete Stanaitis ------------------ stu wrote: I've just bought a new lathe that has a few issues. 1. The tail stock hits the inside of the saddle lifting it off the way. I've spoken to the guy at the shop and he wants to just swap the tail stock with one off the demo lathe he has. Will this be ok or are the tail stocks fitted to each lathe? 2. The change gears are misaligned. The smallest gear is 10 mm thick, the gear it drives it 8.3 mm thick. They are offset by 2.8 mm, is this normal or should I pack the small gear out 2.8 mm? any links on setting up lathes for noobs appreciated Thanks in advance |
#6
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New Lathe Problems
"Karl Townsend" wrote in message anews.com... I'm going to guess you're buying a lathe of Asian origin. Very common to have issues like this. get as much as you can out of the vendor. From there, many consider these lathes "a work in progress". You'll need to modify it for nice performance. I've seen threads on this NG, at CNCzone.com and especially in Home Shop Machinist magazine. There's an index of back issue articles on their website. Karl Yes I realised going in that it would need some of the rough edges taken off and a few mods here and there. Like washers under the angle adjustment nuts on the compound slide. Still getting it "just so" will be half the fun, I hope. |
#7
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New Lathe Problems
stu writes:
The change gears are misaligned. The smallest gear is 10 mm thick, the gear it drives it 8.3 mm thick. They are offset by 2.8 mm, is this normal or should I pack the small gear out 2.8 mm? Sounds like my Chinese lathe of similar size, as others will also attest. The change gears lined up, but the swing arms and all were hopelessly ill- fitted and couldn't have possibly passed any tests. Took a few hours with turning and filing to get things fitted, but now it is perfect. |
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