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| Help needed with my lathe |
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| ieezitin:
Hello peoples I have a Logan 200 10” swing lathe and I was wondering if anyone has fitted a quick change gearbox to there’s, this unit was made not to accept a gear box to it, the model 820 (same size as mine) came from the factory with a quick change gear supplied, and I know Logan made many interchangeable parts, I am assuming the lead screw would be the same size on both machines. On the model 820 the gearbox is bolted through to the bed rails located underneath the headstock, my main concern is drilling through the rails and tapping it, all ideas and advice would be welcomed. I do not have the change gears so I face a cost in the future, a full set of gears costs 2/3 of the cost of a quick change gear box, so I would rather put effort and spend a little more money and get a better value for all my input. I have never modified any of my machines where it involves altering the main structure for good where there’s no turning back so I am a little hesitant about it but I am more than willing to give it a try as the payoff is large. Again all ideas and advice is would be highly appreciated. Thanks in advance Anthony. |
| 75Plus:
Anthony, Logan is still in business as Logan Actuator Company. They still make parts for Logan Lathes and Wards Lathes. This is the link to their site. http://www.loganact.com/ The FAQ section also has a lot of info. http://www.lathe.com/faq/index.html They can answer all your questions. Joe |
| Bogstandard:
Anthony, Although I have never done one myself, but I have known other people who have fitted gearboxes to their lathes, but not the Logan. But almost anything is possible. It always helps if you have someone with a shop to fall back on while you are modding yours. Maybe you will need to machine mounting points and recesses into the main frame, and you can also guarantee that the leadscrew will require modifying, machining up on the end so that it is maybe shorter, and so that it fits into the end of the new gearbox. Having your lathe in a catch 22 position, where you need a lathe to do the machining, but the lathe is stripped down for the mods doesn't help. Planning well ahead can solve most of your problems, especially if you can get someone to measure up for you their machine, that has a gearbox already fitted. Best of luck with your venture. Bogs |
| ieezitin:
75. Thanks for the link, I was quite impressed with the fact the company is still going and is very responsive to helping people who own their machines from way back like myself, they still manufacture and sell parts going back 60 years, I read the history and that was very interesting , more than that it seems the present owner is very involved in helping people like me. I read that a 820 series qc will or can be fitted to my 200 by milling 11/32 off to align to the center of the lead screw, that’s no problem at least I know it’s possible and has been done. John. Good advice, I have another lathe in my inventory so I plan that machine to help me through whatever I need, agreed and understood that the lead screw needs to be snubbed . so far what I see I will need to drill and tap into the bed, maybe you or anyone else could let me know what I may be in for in this procedure, I was thinking of making a jig that clamped to the rail so the drill drove in square at the same time this would true the tap. Not having reworked lathe beds before any advice of tapping sizes % wise, or do I treat it just like cast iron, like I said it’s a onetime deal and I want to get it right. Like John has mentioned if anyone has done this before on this machine I would love to hear from you. Thanks all. Anthony |
| Bernd:
Anthony, If I'm not mistaken you would need a shorter lead screw also. Unless that lead screw is in two parts on your lathe. I have a 1875 10" and love it. Bernd |
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