What are you machining?

[fizzy]

Kram
Despite all the comments you are doing some great work keep sharing.
I am not very well again with this bug and can't do any machining myself so it's nice to see other people's work

 

[Agroshield]

You are doing very well.

If you are to persevere with milling in the lathe, it might be worth standardising on a cutter shank diameter, even if it is just for roughing/bulk removal, and then buying a single Morse collet to suit. It will reduce the overhang from the spindle nose considerably and stiffen things up.

The cutter is a simple cantilever and the deflection is proportional to the cube of the length, so halving the stick out reduces the deflection by a factor of eight.

Try and buy the stumpiest cutters you can find and even cut off the top end of them so the flutes abut the ER collet.

 

[dan.taylor.1]

Made a little motor shaft spacer from stainless the other day. Never had the tool reflected in the finish before, was quite pleased, shame it'll be hidden by a sodding great pulley!

 

[Seadog]

I'm no expert but rpm looks a little on the fast side?

Definitely. If it had been a carbide mill, then OK.

 

[Kram]

Yes too fast it was first test cut after swapping from 10mm. The chip was too small. Cutter fine its not discoloured but got some nice blue chips. The work and cutter were oiled thats the smoke burning oil.

Last cut only needs 6mm next I will use dovetail cutter to retain the blade. Tried 700rpm not happy

Faster was better

 

[Kram]

Cocked up the threads wrong offset so the blade side is paper thin.

Started on the top block.

 

[Kram]

 

[Kram]

I had an idea.

Dont need 3d printer. Bigger T slot cutter ordered.

 

[Kram]

Bit more space.

 

[Kram]

Keep dropping saddle lock handle/allen keys down between the ways, so made a proper one with a retaining ring, as I ran out of brass, that bit is copper, which turns like sticky orange poo. I will buy more brass.

 

[Agroshield]

Keep dropping saddle lock handle/allen keys down between the ways, so made a proper one

Yes, copper is not nice to machine. Razor sharp HSS works.

Is the handle not a little long and will foul the tailstock?

You were asking about a DRO elsewhere. There seems very little space between the saddle lock and cross slide so you might have to factor this in. I read somewhere of someone who put a DRO on a similar Warco machine and used the magnetic tape version and managed to put it all under the cross slide.

 

[Kram]

Yes I think underneath is the best optlion if it will fit, I will have a search.
Handle is usually past the ways. It has to be fully round to lock. Being longer than the slide will make it much easier to unlock

 

[Shox Dr]

I fitted a mag reader to the crosslide of my m300, as I didn't want to loose tailstock movement.
I have a sheet of plastic over the crosslide to keep swarf away from the ways and reader

 

[Kram]

Thats well hidden, I like that idea it would fit inside the cross screw gap, and be quite well protected.

Making up a mount for die grinder. This would be a great task for the boring head or rotary table but I had the 4 jaw in there. Lathe starts to rock at 500rpm I am wondering if anyone has made up counter wieghts that slot over the chuck jaws and balance things out?

 

[Agroshield]

I am wondering if anyone has made up counter wieghts that slot over the chuck jaws and balance things out?

It is common in the books to note that if you are doing unbalanced work on a faceplate you should add a counterweight. Often the lathe's change gears are doing this in the old pictures.

I found the thread on the under-slide DRO, see: https://www.model-engineer.co.uk/forums/postings.asp?th=142115&p=1

 

[Kram]

Perfect thanks for that I will have a read though later.

 

[Shox Dr]

I needed to machine the bearing housing off a Munice SM420 gearbox. Most of thecasting is off centre by a long way. Needed a counter balance, I had a root about picked a lump up and plonked it on the faceplate. Amazingly it was bang on, a 2p on the h/stock didn't move

 

[Welderpaul]

I needed to machine the bearing housing off a Munice SM420 gearbox. Most of thecasting is off centre by a long way. Needed a counter balance, I had a root about picked a lump up and plonked it on the faceplate. Amazingly it was bang on, a 2p on the h/stock didn't move

View attachment 222048

Whats the TP you have on there Shox - a wedge type?

 

[Shox Dr]

Whats the TP you have on there Shox - a wedge type?

Piston, not had any problems, tooling doesn't move and is repeatable

 

[Kram]

Faced a piece of 100 bar, this turns very like En19, stringers and mirror finish on a deep cut