You can have it. If you're not in a hurry I'll bring it to @pressbrake1 in April.
If you need it sooner I could post it.
If you need it sooner I could post it.
- Thread starter Colin H
- Start date
Fantastic, forgot you were going there. That would be great. Let me know if in need of bits and see if I can help in return.
Started making a MT4 adaptor tonight for the rotary table. Won’t be as nice as face plate but fine for mounting a Chuck for round work (can’t register 0 on a taper).
This was an old plate I had turned parallel for some 280mm diameter work too big for chuck in past.
I turned morse taper but it’s a smidge too small so hoping I have enough length to turn parallel back to face and let it pull tight.
Also be interesting to blue up and see just how sloppy the chipmaster compound is.
This was an old plate I had turned parallel for some 280mm diameter work too big for chuck in past.
I turned morse taper but it’s a smidge too small so hoping I have enough length to turn parallel back to face and let it pull tight.
Also be interesting to blue up and see just how sloppy the chipmaster compound is.
Started milling up my repeat o meter base and noticed the run out on cutter was horrendous (see it by eye). When measured there was 0.15mm run out inside er32 collet chuck. It is some cheap rubbish but knew it couldn’t be that bad.
Further checking shows around 0.05 and more on the spindle.
I have stripped it down and can see spindle must have ran with too much play for a while as the first 10-15mm of nose in tapered bronze bearing is worn more than rest.
There are depressions and wear but rest looks OK.
I’m a bit confused by the oiling system as it has felt pads in bush and felt washer on top of bearing stack but look how the oil has to get to all that!
I assume you are meant to have spindle fully retracted so the hole squirts over felt washer.
Have it all stripped and ready to inspect now. I also realised the little bearing preload nuts are left hand thread before stripping them, so there’s a good end to day
I think being so worn it would make sense to chuck this up in lathe somehow and skim cut before scraping the bronze back in (assuming there is enough meat left).
I want to get a high speed head for this thing so don’t have to listen to scream of all the straight cut gears so maybe this is a sign.
Didn’t plan on bearing scraping but here’s to another skill to learn!
Further checking shows around 0.05 and more on the spindle.
I have stripped it down and can see spindle must have ran with too much play for a while as the first 10-15mm of nose in tapered bronze bearing is worn more than rest.
There are depressions and wear but rest looks OK.
I’m a bit confused by the oiling system as it has felt pads in bush and felt washer on top of bearing stack but look how the oil has to get to all that!
I assume you are meant to have spindle fully retracted so the hole squirts over felt washer.
Have it all stripped and ready to inspect now. I also realised the little bearing preload nuts are left hand thread before stripping them, so there’s a good end to day
I think being so worn it would make sense to chuck this up in lathe somehow and skim cut before scraping the bronze back in (assuming there is enough meat left).
I want to get a high speed head for this thing so don’t have to listen to scream of all the straight cut gears so maybe this is a sign.
Didn’t plan on bearing scraping but here’s to another skill to learn!
Brad93
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- Essex, United Kingdom
What are they?
paradipiro
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- Location
- Budapest, Hungary
Now, I'm glad, that i have a TOS FN22, with curved bevel gear, and roller bearings on the vertical spindle..Started milling up my repeat o meter base and noticed the run out on cutter was horrendous (see it by eye). When measured there was 0.15mm run out inside er32 collet chuck. It is some cheap rubbish but knew it couldn’t be that bad.
Further checking shows around 0.05 and more on the spindle.
I have stripped it down and can see spindle must have ran with too much play for a while as the first 10-15mm of nose in tapered bronze bearing is worn more than rest.
View attachment 391656
There are depressions and wear but rest looks OK.
I’m a bit confused by the oiling system as it has felt pads in bush and felt washer on top of bearing stack but look how the oil has to get to all that!
View attachment 391658
I assume you are meant to have spindle fully retracted so the hole squirts over felt washer.
Have it all stripped and ready to inspect now. I also realised the little bearing preload nuts are left hand thread before stripping them, so there’s a good end to day
I think being so worn it would make sense to chuck this up in lathe somehow and skim cut before scraping the bronze back in (assuming there is enough meat left).
I want to get a high speed head for this thing so don’t have to listen to scream of all the straight cut gears so maybe this is a sign.
Didn’t plan on bearing scraping but here’s to another skill to learn!
What is the max RPM that yout machine can deliver? How much is the noise with this gear setup?
Maybe you can shim the vertical gear to achieve a minimal tooth clearance to make it less noisy.
The machine will deliver 1900RPM with the vertical head but sounds like an air raid siren! Its a mixture of vertical head and the straight cut gear that runs everything.Now, I'm glad, that i have a TOS FN22, with curved bevel gear, and roller bearings on the vertical spindle..
What is the max RPM that yout machine can deliver? How much is the noise with this gear setup?
Maybe you can shim the vertical gear to achieve a minimal tooth clearance to make it less noisy.
I am tempted to convert this to it's own motor power but would be better to gear down the high speed head which I know of available. (Run from Inverter).
They are clutch baskets that the laser weld fails on
paradipiro
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- Budapest, Hungary
If I were you, i would construct a new spindle with quill function, with its own motor.
I have this dream for my own machine too. Badly, a don't have the original "fast head" for it, like Pete, but this gives me some freedom for the design.
If I can help you with calculations, or breinstorm, feel free to ask.
Brad93
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- 18,335
- Location
- Essex, United Kingdom
thought they looked clutch related
I am hoping to get high speed head and then run at lower speeds through speed control.If I were you, i would construct a new spindle with quill function, with its own motor.
I have this dream for my own machine too. Badly, a don't have the original "fast head" for it, like Pete, but this gives me some freedom for the design.
If I can help you with calculations, or breinstorm, feel free to ask.
The head is now fully stripped. Everything looks in fine condition other than the bronze bearing.
I will be using spindle and dial gauge to set compound angle then chucking up the quill to lightly bore bush. Will then scrape bush back in using spindle as master.
I will be using spindle and dial gauge to set compound angle then chucking up the quill to lightly bore bush. Will then scrape bush back in using spindle as master.
Work on the table continues today as I’m on @pressbrake1 scraping course and brought some bits to work on.
I will do a detailed write up on my experience once finished but I will say for now, if you have anything that matters to scrape take the course!
Little test piece that will no doubt serve for years to come
I had completely butchered this earlier in day so even a webbed fingered, hamfisted, spanner spinning farmer can be helped
I will do a detailed write up on my experience once finished but I will say for now, if you have anything that matters to scrape take the course!
Little test piece that will no doubt serve for years to come
I had completely butchered this earlier in day so even a webbed fingered, hamfisted, spanner spinning farmer can be helped
Pete.
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- Kent, UK
That is nice point spotting. Well done
Thanks Pete, I got a little lucky with that one but I’ll take it as the next side was a complete pain in the backside
Scraped looks nice but scraped and painted is another level! Finally getting some parts back together ready for next stage.
Have a little surface grinder on the way for more work going forwards.
Vertical head is coming off and run horizontal
For a while, will just take some new thought after many years of poking the stuff from above.
New inspection grade granite coming this week so I can crack on with more precise parts needing work.
It’s a small table 630mm long x 400mm wide and here is Ghetto base for it! Three point mounting in hard rubber feet. Slightly lower 2 feet to prevent tipping and strips to stop it being pushed off.
The plate only weighs 60kg and the worktop is much more thermally stable than steel. Moisture will affect it but that’s a much slower change than thermal (always bloody raining here)
While the paintbrush was out have a few other bits a first coat of paint. @pressbrake1 straight edges here
Have a little surface grinder on the way for more work going forwards.
Vertical head is coming off and run horizontal
For a while, will just take some new thought after many years of poking the stuff from above.
New inspection grade granite coming this week so I can crack on with more precise parts needing work.
It’s a small table 630mm long x 400mm wide and here is Ghetto base for it! Three point mounting in hard rubber feet. Slightly lower 2 feet to prevent tipping and strips to stop it being pushed off.
The plate only weighs 60kg and the worktop is much more thermally stable than steel. Moisture will affect it but that’s a much slower change than thermal (always bloody raining here)
While the paintbrush was out have a few other bits a first coat of paint. @pressbrake1 straight edges here
