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BaitMaster’s (Work) Bench

ColinB said:
Thanks for explaining the action of the lever @BaitMaster ! Does the "latch"ing happen because the switch is on the circular part of the switch cam? My 13x40 is about a 2000 and appears to have once had one. I'm guessing it was damaged in transport and removed. The stop button feels a long way away, even with a 1' workpiece, so I'd like to find or recreate the system.
On a side note, the previous owner fitted a brake (solenoid actuated hydraulic bicycle disk brake) that works when you hit the stop button.
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I will take a picture for you.
 
@ColinB
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See the notches and the tab for the 3 positions.

Spindle off is middle. Spindle forward is down. Spindle reverse is up.
 
BaitMaster said:
Spindle off is middle. Spindle forward is down. Spindle reverse is up.
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My Liang-Dai clone is single phase which I’d heard wouldn’t change direction if I switched it before it stopped. So I tried that and sure enough it didn’t change direction if I was too quick.
 
StevSmar said:
My Liang-Dai clone is single phase which I’d heard wouldn’t change direction if I switched it before it stopped. So I tried that and sure enough it didn’t change direction if I was too quick.
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That’s a common behaviours of single phase motors. If it doesn’t slow down enough for the centrifugal switch to re-engage, then the start windings polarity is not reversed.

Don’t try that on a three phase motor anyone! lol

Three phase WILL switch directions no matter what.
 
historicalarms said:
If you look on the bottom photo in post #221 you can see the forward-off-reverse mechanism plainly, it is the bottom rod of the three. The operating handle is mounted on the far right-bottom of the apron and the switch you wanting is inside the small square box at fare left of that rod where it enters the transmission gear box. if your lathe doesnt have all that still on it, it should have.
That switch is the one and only breakdown my lathe has had in its 20 yrs and that was in the first month of use. It is a multi layer plastic affair ( 4 layers I think) that I think if some of the 3D printer guys had a model to copy could be easily done. I had to get the venders i bought the machine from to rob a new switch off another floor model to get me back going again, 3 months later that floor model was still in the shop waiting for that switch. Probably the same switch is used today in all the Taiwanese machines so should be available.
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Yes, I understood that it was the lowest shaft and the right hand lever on the carriage. I just need enough details (like proper function), in order to recreate it. I've found someone semi-local, with the same lathe series. He has taken a few photos for me, which show two microswitches in the box at the left end of the rod. There is no multi-layer plastic switch. I'm going to go for a visit, with my calipers and copy what his lathe has.
 
Ye old outboard spider project…..

I’ve made two of these in the last two years.

I really hope this is the last one for at least 5 years. Or 10. Or 20.

Not foreseeing getting rid of my new lathe any time soon, so I should be good for awhile.

This one turned out a bit better than the last one. The tolerances are tighter. I managed to hit the bore on the smaller part a perfect 40mm…. Which is my spindle bore ID. And I managed to hit the OD of the spindle/the ID of the clamping portion with a perfect 1 thou clearance. If I leave the clamp loose, and play the spider up and down on the spindle, there’s 2 thou total play indicated. So I am super happy with that. Tightens up VERY snug with no effort…..

I’m definately improving on my machining. A little at a time.

I am also going to put some magnets in this thing for an RPM display, and bore out the hole on the cover so I can leave this guy on the lathe regularly with a cover on.

Till next time.
 

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Ye old Rong Fu had to put in a little work for the team.

The hole was off center left and low about 40 thou each way. I bored it out to comfortably fit my new outboard spider, as I plan to leave the spider on the lathe most times…

I think it turned out pretty well.

I was thinking of grinding the hole bigger or die grinding it…. But I want to keep this lathe for the foreseeable future, so I decided to spend the time to bore it out nicely and make it pretty.

Another one for the books….
 

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historicalarms said:
My cover hasnt been installed for 20 yrs...hasnt proven to be a safety hazard for me yet, i just never go close to the back end when turning but with it off much better to listen to gear clash and observe if something starts to snap crackle or pop.
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I didn't say it, but since you are putting your jewels out there to get stomped on, I'll stand beside you.

My cover is gathering dust and swarf against the wall behind my lathe too. Hasn't been installed in 15 years.

If my lathe had one of those interlock chuck shields, (it doesn't) the shield would be against the wall beside the gear cover too.
 
@historicalarms and @Susquatch I have a 2.5 year old daughter……

The cover off wouldn’t be a hazard for ME. If I was an empty nester with no kids, I would happily leave the cover off and not worry about it.

Kids like to touch things, I don’t want them to touch the wrong things. My friends have kids too and sometimes they come over….

It’s one less thing to worry about when my daughter is in the shop with me.

I 100% agree that for a careful operator the covers don’t serve much good.

For a toddler? Might save a hand.
 
BaitMaster said:
For a toddler? Might save a hand.
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I hear you. Might save more than just a hand. A kid's body is like a blanket.

FWIW, I'd never run my lathe or my mill with a kid in the shop let alone with or without guards. Everything is shut down completely (turned off, unplugged, breaker thrown, door locked, alarm on) when I'm not there. If I had a key lock on each machine, that would be locked too. I don't trust anyone in there let alone a toddler.
 
Susquatch said:
I hear you. Might save more than just a hand. A kid's body is like a blanket.

FWIW, I'd never run my lathe or my mill with a kid in the shop let alone with or without guards. Everything is shut down completely (turned off, unplugged, breaker thrown, door locked, alarm on) when I'm not there. If I had a key lock on each machine, that would be locked too. I don't trust anyone in there let alone a toddler.
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I’m definately careful about running things with her in there. Usually if I do, my wife is in there as well, watching her watch me work.

The cover is just an extra layer of protection.

I want to strike a balance between my kids seeing what I do, and keeping them safe.

I think it’s important for kids to see people “do” real things, it can spark a life long curiousity for doing things.

I still remember my dad building things when I was little, it made me realize it was possible. It gave me the confidence to venture into building things myself.

I’m not reckless with kids in there AT ALL.

But I think it’s still important for them to see it.

My buddies kid (11) watched me cut out some wood on my metal band saw and thought it was cool.

He saved up for a few months and bought himself a cheap (100$) ryobi scroll saw.

Now he’s making his sisters puzzles with some 1/4” ply I gave him…..

Obviously he’s older but he’s been watching us do stuff since he was little.

I never want to take that inspiration away from kids…. I would like to provide the inspiration while keeping them safe.
 
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