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| Mini Lathe Speed Reduction....... |
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| Stilldrillin:
Hi Andy. Thank you! Those two seem very purposeful. Though I wonder just how much torque the gearing can stand. :scratch: Yes that is me, on 7 x 12. Still rather smockravelled with the email only format. Not quite as homely as on here....... :thumbup: David D |
| andyf:
--- Quote from: Stilldrillin on January 25, 2012, 04:07:31 PM ---Hi Andy. Thank you! Those two seem very purposeful. Though I wonder just how much torque the gearing can stand. :scratch: Yes that is me, on 7 x 12. Still rather smockravelled with the email only format. Not quite as homely as on here....... :thumbup: David D --- End quote --- As to the gearing, not a huge amount of torque, I imagine. From reports on the 7x12 group, the plastic gears within the headstock seem to be those which most frequently lose a tooth. And the headstock end of the bed is cut away to accommodate the motor so much that it might flex a bit with supertorque, as Fergus said. See two of the pictures on this page, which show the Real Bull variety, but Siegs are the same. http://www.toolsandmods.com/mini-lathe-bed.html Yes, the 7x12 Group is a bit clunky, like all Yahoo groups. Threads on it aren't neatly arranged, as they are here. The format dates from years back. You can post via email, but it's easier to do it by visiting the group. It started as a spinoff from the 7x10 group when that degenerated into political ranting, so is fairly tightly moderated by John "Gadgetbuilder", Trevor Rymell and me to make sure it doesn't go the same way. :scratch: Don't really know why I'm a mod, having never owned a Seig or RB lathe. Andy |
| Stilldrillin:
--- Quote from: andyf on January 25, 2012, 07:27:26 PM --- And the headstock end of the bed is cut away to accommodate the motor so much that it might flex a bit with supertorque, as Fergus said. See two of the pictures on this page, which show the Real Bull variety, but Siegs are the same. Andy --- End quote --- Andy. Where's this cutaway? :scratch: This is my Real Bull, during a stripdown, some time ago........ Same thickness of bed, all the way through. Full, four bolt fixing. David D |
| andyf:
Sorry, David; I omitted the link from my last post, but have now rectified that. "Cut away" was not the best way of putting it, but I was referring to how the rear vertical side of the bed stops short and doesn't afford any reinforcement to the top of the bed under one side of the headstock - see the last pic on that page. Andy |
| John Swift:
Hi Dave I guess this picture shows the cutaway without it ,you need extra metalwork to attach the motor (not what the exra bean counters want when the are keeping the cost down ) John PS the motor mounting in the Ralf Patterson speed reducer has given me ideas |
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