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Date
Re: THREAD CHASING
What Andrew said!!!! and much better than I did and I haven't been to the pub. 8-( John Dammeyer Automation Artisans Inc. http://www.autoartisans.com Ph. 1 250 544 4950
By John Dammeyer · #18219 ·
Re: THREAD CHASING
John's right. When a leadscrew is used to cut a pitch of its own "nationality", the right place to engage the half-nuts turns up frequently. Imagine holding two rulers, ruler 1 graduated in 16ths of
By andrew franks <andyf1108@...> · #18216 ·
Re: THREAD CHASING
Hi Ian, Half the time I don't understand myself either so don't feel bad. ;-) Put a handle on the spindle and install the required for metric gears onto the lathe and walk through some turns with a
By John Dammeyer · #18217 ·
Re: THREAD CHASING
G'day John. I saw the timing of some of your missals; quite late. With a metric LS the chaser dial does not have the same relationship to the thread as for imperial. Apart from really odd-ball threads
By steam4ian · #18215 ·
Re: THREAD CHASING
Hi Ian, An extended tag - I'd never interpretted that passage quite that way! Just thinking out loud, if you had your RH carriage stop and always started from there, dropping the half nuts in at the
By born4something · #18214 ·
Re: THREAD CHASING
Hi Ian, You are making an assumption that when the lead screw is at a specific point when the spindle is at an equally repeatable location. That's essentially how the thread chasing dial works. If you
By John Dammeyer · #18213 ·
THREAD CHASING
G'day all. On another topic, John (born4something) and I have been discussing thread chasing dials. If you have a metric lead screw you need a range of pinions on the dial to suit different threads.
By steam4ian · #18212 ·
Re: 7x12 capability
Chris, The best bet is to find a good supplier of unbranded lathes that come from the same manufacturers as the branded models but cost from ?260 - there's no need to pay more. You can get a model
By Hugh · #18211 ·
Re: 7x12 capability
G'day Chris. CORRECTION. The guy was Andy Franks not Alan. My apologies Andy. One good trun deserves another. Regards, Ian wrote:
By steam4ian · #18210 ·
Re: HELP!! I am in need of a lathe with the following capabilities
G'day Paul, Just to say what you said is great. Making tools, to make tools, to make tools.......... One good turn deserves another. Regards, Ian wrote: spindle,
By steam4ian · #18209 ·
Re: 7x12 capability
G'day Chris. Have a look at the machines close-up if you can. A guy named Alan from the UK sent me a picture of his lathe, I think it was a Chester, and it had some significant improvements over the
By steam4ian · #18208 ·
Re: 7x12 capability
A rule of thumb for the max projection from the chuck jaws is 2-3 times the diameter so a 3" long piece would be fine Gerry Leeds UK
By gerry waclawiak · #18207 ·
Re: 7x12 capability
The 7x12 standard chuck would have no problem with that Gerry Leeds UK _________________________________________________________________ MSN Hotmail is evolving - check out the new Windows Live Mail.
By gerry waclawiak · #18206 ·
Re: 7x12 capability
Chris, Warco do one, too, and they are all basically Seigs. Their machines have a few rudimentary checks made before being sent out. Their travelling steady is ?18. I don't know how their prices
By andrew franks <andyf1108@...> · #18205 ·
Re: Cummins 7x12 newbee question
I stop grinding the top rake just about when the grinding wheel gets to the cutting point. I'm only using two different tools for most of my work at this time but it been working for me. The shim is a
By kevin <k.hand@...> · #18204 ·
Re: 7x12 capability
Thanks Andy and Ian it sounds like the 7x12 will do the jobs i have in mind for it so i will be putting an order in soon for iether a sieg c3 or a chester conquest i think they are the same machine...
By mozziesplat <katiechris4evr@...> · #18203 ·
Re: HELP!! I am in need of a lathe with the following capabilities
Just to get the terminology down for lathe work - Turning - reducing the diameter of the work. Facing - reducing the length of the work from an end. Parting - cutting work off on the lathe. Boring -
By moir_p · #18202 ·
Re: HELP!! I am in need of a lathe with the following capabilities
A couple of questions. When you say "I need to make small sections of it thinner" do you mean make the outside smaller or the inside larger? When you say a "14x1 left hand thread" do you mean a 14mm
By cannontandem <cannontandem@...> · #18201 ·
CNC 8x12 Z-Axis Pictures
hi all- we've been working on getting the 8x12/14 cnc'd lately and posted some comments and pictures on its progress. so far, we're just a few steps away from having the carriage being driven. we've
By figNoggle · #18200 ·
Re: Best Plastic to use
Hi John, Yes, it's probably wise to be aware of that. It's not that common if you don't work with the stuff much but as you say, people may not make the connection. Same goes for lots of things we
By born4something · #18199 ·