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Date
Can You Use a Dial Caliper as a Non-Digital "DRO?" (was "Re: LittleMachines DROs and dials")
I just bought a Shars 6" dial caliper after admiring one belonging to a friend. It's probably the best and most durable dial caliper I've ever had. But I also have a Chinese dial caliper that's cheap
By Miket_NYC · #118883 ·
Re: Holes in cast iron
Thd best is cast iron filler next is braising. The big question is are you good at braising. If not JB is a good option. They do make better fillers but at higher cost. But JB is found at the local
By davesmith1800 · #118882 ·
Re: Holes in cast iron
JB Weld IS a metal filled epoxy and is plenty strong enough for this. Mike Taglieri [email protected]> wrote:
By Miket_NYC · #118881 ·
Holes in cast iron
I inherited a nice little used milling vise from my Dad.? It's been sitting on a shelf for a bit waiting for me to clean it up and put it to use. There's a couple spots where it looks like someone
By chrisser · #118880 ·
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
By davesmith1800 · #118879 ·
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
By davesmith1800 · #118878 ·
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
By Bruce J · #118877 ·
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
By Aaron Woods · #118876 ·
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...
By WAM · #118875 ·
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
By Craig Hopewell · #118874 ·
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
By David Everett · #118873 ·
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
By Miket_NYC · #118872 ·
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
By davesmith1800 · #118871 ·
Re: Crazy?
Scotch pad animal
By mike allen · #118870 ·
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
By Bill Williams · #118869 ·
Re: Crazy?
A shear cut tool will leave you with a very fine surface finish. Bil in Boulder
By Bill Williams · #118868 ·
Re: Crazy?
That's an option too.Brian
By Brian VanDragt · #118867 ·
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.
By Johannes · #118866 ·
Re: Crazy?
I don't know what you have for tooling. I would try HSS first. The interrupted cut will probably chip carbide.?Brian
By Brian VanDragt · #118865 ·
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.
By Johannes · #118864 ·