| Gallery, Projects and General > How do I?? |
| Thread cutting on a Stanko 1A616 |
| (1/4) > >> |
| ksor:
I'm trying to figure out how thread cutting is done on this lathe. The change gears on the left side of the gearbox give me some problems - I think I miss some of them ! I only have 2 dobble gears and 1 bigger to connect them. The 2 dobble gears have this stamped on the side: M2 20-55 and M2 25-36 and it's the number of teeth on each single gear ... what is the "M2" standing for ? I have got some copies of some tables on how to set up for thread cutting and I can see there is mentioned some teeth number that I don't have ! So my question is: How many change gears is normaly delivered with the machine ? Only the one set I have (M2 20-55 and M2 25-36) or ... ? You can see some Pictures here - Google translation is avaiable to the right just under the menu line: http://kelds.weebly.com/gevindskaeligring.html Best regards KSor, Denmark |
| philf:
--- Quote from: ksor on November 21, 2013, 11:56:03 AM --- ... what is the "M2" standing for ? --- End quote --- Ksor, If the 55 tooth gear is 114mm outside diameter the M2 might mean 2 Module - which is the size of the teeth. Phil. |
| RussellT:
Hi KSor That looks an interesting problem. I think from your website that all the information you need should be on the plate on the top of the gearbox. Have you got any better pictures of it. I can see references to 36: 55 on the plate which is presumably the changewheel set up. If you have two double gears 20-55 and 25-36 you have four possible setups depending on which way you put the gears on. (20:25, 20:36, 25:55, and 36:55). I suppose that's really 8 as in principle they could go the other way too. The plate should tell you what you're missing. I think I can see a reference to 30:55 but that might be a 20. It looks a very capable lathe. Russell |
| ksor:
--- Quote from: philf on November 21, 2013, 12:20:08 PM ---Ksor, If the 55 tooth gear is 114mm outside diameter the M2 might mean 2 Module - which is the size of the teeth. Phil. --- End quote --- :scratch: :scratch: :scratch: I don't get you ! Do you mean that IF I should make a new or extra set of change gears I would have to use the M2 gear cutters or ... ? |
| ksor:
--- Quote from: RussellT on November 21, 2013, 01:01:05 PM ---Hi KSor That looks an interesting problem. I think from your website that all the information you need should be on the plate on the top of the gearbox. Have you got any better pictures of it. I can see references to 36: 55 on the plate which is presumably the changewheel set up. If you have two double gears 20-55 and 25-36 you have four possible setups depending on which way you put the gears on. (20:25, 20:36, 25:55, and 36:55). I suppose that's really 8 as in principle they could go the other way too. The plate should tell you what you're missing. I think I can see a reference to 30:55 but that might be a 20. It looks a very capable lathe. Russell --- End quote --- Yeah, maybe ... I have used this table to set the levers for my test cut - and I'm aware of all the combinations I can get with these gears BUT the table DON'T tell very clear whitch gear should be placed where - at least I don't see the pattern .. yet - I have to do a light cut and then measure the pitch to see if I have to swap the gears. Maybe there is a convention (whitch I then just don't know) that tells that when the table says 20:25, then the 20 teeth gear should be placed FIRST in the direction of power - do you get what I mean ? I think I will only use the metric threads, so I just wanted to know IF there should have been more change Wheels/gears delivered for other type of threads. It isn't an easy job to make gears for other types of threads because the gears sits on a "multi-keywayed" (I don't know the right term here :loco:) axle - so for now I stick to metric threads. Tomorrow I try to cut a sample - a big one 40-50mm diameter - both inside and outside - if I succeed I take some pics or video :med: :smart: |
| Navigation |
| Message Index |
| Next page |