Re: $1000 Budget: Which 7 x 14 to buy?
Back before WW1 they gave as Bed length. Lather it was center to center till Chinese lathes came out and they use a both center to center or chuck face face to center. Which I only found out last
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davesmith1800
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#118879
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Re: Crazy?
I found it better to buy the correct steel and it makes life easier. Scrap is low cost or even free but it can be a pain too. Dave
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davesmith1800
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#118878
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Re: Crazy?
The VERY first thing I'd do is do a file test for hardness. If it¡¯s hardened you¡¯ll want to anneal it first! I agree with the recommendations for using HSS, because of the interrupted cut. That
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Bruce J
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#118877
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Re: $1000 Budget: Which 7 x 14 to buy?
Probably many factors involved. Some small vintage USA lathes gave the centers standard and with the tailstock overhanging the end of the bed granting a couple extra inches of length for some reduced
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Aaron Woods
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#118876
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Re: Crazy?
Check this out - custom steady rest: https://www.ajawamnet.com/ajawam3/swarf/lgsteady.JPG this was for as LED lighting project for a subway system...
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WAM
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#118875
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Re: Crazy?
I would definitely take it off the lathe and get most of the heavy rust removed with coarse sandpaper or coarse wire brush/wheel first. It's not too big to turn. -- Lone Tree, Colorado? ?USA
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Craig Hopewell
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#118874
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Re: Crazy?
On the same idea as animal said. Take the bar out and use a wire brush in an electric drill.? That will be more aggressive than ScotchBrite.? Once you have all the surface rust off you can get an
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David Everett
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#118873
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Re: Crazy?
If your suggest sandpaper, that means this doesn't need to be a precision surface, so I would try a very coarse file first Unlike sandpaper that will not shed abrasives all over the lathe. Mike
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Miket_NYC
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#118872
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Re: Crazy?
Use a very sharp tip carbide about 60¡ã and a rake of 3¡ã to 5¡ã. Typically I would say C5 but for the project use C6 or C2 they very hard compared to C5. Note you may need to sharpen the tool bit a
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davesmith1800
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#118871
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Re: Crazy?
Scotch pad animal
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mike allen
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#118870
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Re: Crazy?
On Tue, Feb 20, 2024 at 7:58?PM Bill Williams <bwmsbldr1@...> wrote: > A shear cut tool will leave you with a very fine surface finish. Bil in > Boulder > > On Tue, Feb 20, 2024 at 7:53?PM
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Bill Williams
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#118869
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Re: Crazy?
A shear cut tool will leave you with a very fine surface finish. Bil in Boulder
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Bill Williams
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#118868
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Re: Crazy?
That's an option too.Brian
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Brian VanDragt
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#118867
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Re: Crazy?
Maybe I shall cover everything and start with sanding paper? I am only interesting in a nice surface. The key slot shall stay there. Start testing to morrow! Johannes Lavoll.
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Johannes
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#118866
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Re: Crazy?
I don't know what you have for tooling. I would try HSS first. The interrupted cut will probably chip carbide.?Brian
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Brian VanDragt
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#118865
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Re: Crazy?
Brian: this is solid steel, 3.5 kg, because of the key slot , it will vibrate. Slow speed , yes, but what tool? Johannes Lavoll.
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Johannes
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#118864
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Re: Crazy?
If it fits, it's not too big. I turned some 2 or 2.5" tubing once.Brian
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Brian VanDragt
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#118863
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Crazy?
Am I crazy? Too big for my 7x16? I need just to cut/grind/polish the outer surface so it looks nice. I think it has been a 2¡± axel , see the key slot. Weight 3.5 kg. High carbon steel ? I cut it
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Johannes
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#118862
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Re: $1000 Budget: Which 7 x 14 to buy?
The DRO'S are great but they will skip I like them using on the carriage but not the cross-slide.? If DRO'S skip on a bearing bore you would scrap the part. I would use a dial indicator for
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davesmith1800
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#118861
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Re: LittleMachines DROs and dials
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davesmith1800
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#118860
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