SteveW
Elder Statesman
Posts: 1,456
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Post by SteveW on Jan 11, 2005 22:05:39 GMT
Guys,
With the up-coming MEX at the end of January it occured to me to review the set of gears that came with my old Myford 7B.
I currently own the following:
20, 25,30, 35, 38, 45, 55, 65, 70 & 75.
I also have the neat little compound gear that converts the maximum thread ratio (c.120 tpi) to a viable feed speed.
My question is: Is there a glaring omission?
Perhaps the first obvious gap would be metric but I don't really want to go that exotic, certainly not at the cost of that great big gear and other bits.
What then should I look out for on the used stalls?
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Post by alanstepney on Jan 12, 2005 1:54:04 GMT
I dont see 40 on your list. I find it useful, although one can usually manage with others instead.
Apart from that, consider what you might make that could use the same gears, a bending machine, for example.
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Post by Tel on Jan 12, 2005 9:10:01 GMT
also 50 & 60 don't appear on the list - you'l need both of those.
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Post by Roger Mason on Jan 12, 2005 10:05:26 GMT
Hi,
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Post by Roger Mason on Jan 12, 2005 10:14:18 GMT
Hi, How did that happen? - please ignore the previous posting!! Before spending hard earned cash, check out the change-wheels that RDG Tools are selling. Their web-site is www.rdgtools.co.uk/index.html but their change-wheels don't seem to feature on this site. They are selling various change-wheels on e-Bay. In my opinion, they are not genuine Myford parts, but should be interchangable. If you want to cut metric threads you can either use the combination that Myford recommend - using two 21T wheels, or a single 63T wheel, if you don't want an enormous 127T wheel. I hope this helps. Cheers, Roger Mason, in St. Agnes. |
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SteveW
Elder Statesman
Posts: 1,456
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Post by SteveW on Jan 12, 2005 22:01:12 GMT
Gentlemen, Thank you for the replies so far. I add forgotten to include the three gears currently fitted to my lathe, the missing 40, 50 and 60. I had not considered a couple of 21 tooth gears (nor a 63T). I've just noticed them recurring in Myford's metric gear train listing. They have been added to my list. As for a bender (suggested above), yes I have been looking at the Chester/Warco Multiformers (cut, bend and roll) at a mere £145. A fellow club member has one and he's just around the corner and he is quite happy with his. The problem would be at 12" wide I'm bound to need 12-1/2".  |
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Post by Allan Waterfall on Jan 12, 2005 22:42:31 GMT
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Post by ChrisCrosskey on Jan 30, 2005 23:55:57 GMT
I'm currently missing the 23, 41, 47, 49, 56, 61 and 62 to complete every single tooth number from 20 to 65, plus I have all the fives to 100, an 81 and a 127.... the only big one I think I'm missing is the 91, though I wouldn't mind a 96 and a 72, mostly cos they're handy for dividing ratios.... I plan on using them for setting speeds on a toolpost milling attachment I'm making plus also planned (sometime toward the heatdeath of the universe at the rate I get through projects) gear-hobbing attachment.... I don't need them all for screwcutting and only decided it would be fun to collect every single gear they offer when i got a couple of joblots on ebay that had a load of funny sizes in..
chrisc
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SteveW
Elder Statesman
Posts: 1,456
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Post by SteveW on Feb 1, 2005 22:18:15 GMT
Chris,
I'm impressed.
I came close to owning a couple of 21 tooth gears the other Saturday. They were going for £4.50 each on a stand at Alexandra Palace. Unfortunately they weren't made too well so as far as I know are still there.
Re Ally Pally: I wasn't too impressed, it was packed and from around 10:45 when I arrived and I could barely move. It was difficult to look at/get near anything. I was well pissed off when I noticed they'll cordoned off some un-used free space. Had this been used a lot more folk would have enjoyed being there and sharing the moment. As it was, there was no room to stop and chat.
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