God mode restorations
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Carful now pete...paint don't make the machine apparently.....leave it as is mate. Changing it will be a faff...
- Thread starter Pete.
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Pete.
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Celebrating national paint it green day 
I'll admit it's not a first class job (more like steerage) but I'm not at all unhappy with it. I've been struggling to get filler, and even 2-pack filler primer to stick to whatever that powdery red filler they used on it was. I couldn't face stripping it back to bare metal and spending a week filling and sanding all those features, so this is what I've got and it'll have to do.
I'll admit it's not a first class job (more like steerage) but I'm not at all unhappy with it. I've been struggling to get filler, and even 2-pack filler primer to stick to whatever that powdery red filler they used on it was. I couldn't face stripping it back to bare metal and spending a week filling and sanding all those features, so this is what I've got and it'll have to do.
scottmk1
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Looks good to me, I should have got @pressbrake1 to paint my mini wheel that colour!
pressbrake1
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I have a few litres of that
scottmk1
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I have a few litres of that
Don’t tempt me
pressbrake1
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It’s crated up ready to go , I’m not sand blasting and doing it again!
scottmk1
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God mode restorations
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Absolutely nowt wrong with that pete..prep and paint with machinery csn be a nightmare and hard work...my shaper was the same...
Maker
Most folk just call me; Orange Joe
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Good enough for the aerospace industry, there's buckets of that stuff in an aeroplane.
My son painted his 2 litre redtop.mini that colour. LolI know, I wouldn’t expect you to.
Funky colour though
Pete.
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I painted some more bits Friday evening. Gearbox cover, button plate, z-nut housing and a couple of other covers and bits. This allowed them to harden over Satuday as I was working.
I paint them outside in the alley sat on plastic buckets so I could turn them around to paint all sides and then carry them inside afterwards.
Today I wanted to rebuild the spindle speed gearbox which has 3 shafts with gears and 3 selector forks working from a single speed dial. This item is damn heavy even without the gear cluster fitted (probably 30kg), plus it was already painted so I needed to hold it in such a way that I could fit the gear clusters and selectors without damaging the paint. I fitted two box-section tubes under my bench for just this kind of thing so I made this bracket from scrap.
And the gearbox plate/housing bolts to this bracket holding it nice and secure for me to rebuild it with new bearings etc.
I got the whole gearbox assembled with it's new bearings, but alas the pic I took was blurred so not worth posting. It plugs into this hole here and engages with the input shaft you see.
Unfortunately I didn't think to remove the button plate before trying to fit the gearbox and found out that even though the bracket provided a great way to hold the now 40-odd kilos of iron and steel it also took the paint off the edge of the button plate so I'll have to re-do that later. You can also see where some of the paint has chipped away with the masking tape, I've been having a constant battle trying to get stuff to stick to this 1960's red filler, I dread to think what is in it so I've been using my dust vac on the DA sander the whole time.
Eventually I got the button plate off, the gearbox fitted then the button plate put back on. The gearbox is secured by these 7No M10 bolts and two taper pins.
Here you can just about see the clusters before I put the cover plate on and the output gear is the one on the right which meshes with the idler on the next assembly.
I paint them outside in the alley sat on plastic buckets so I could turn them around to paint all sides and then carry them inside afterwards.
Today I wanted to rebuild the spindle speed gearbox which has 3 shafts with gears and 3 selector forks working from a single speed dial. This item is damn heavy even without the gear cluster fitted (probably 30kg), plus it was already painted so I needed to hold it in such a way that I could fit the gear clusters and selectors without damaging the paint. I fitted two box-section tubes under my bench for just this kind of thing so I made this bracket from scrap.
And the gearbox plate/housing bolts to this bracket holding it nice and secure for me to rebuild it with new bearings etc.
I got the whole gearbox assembled with it's new bearings, but alas the pic I took was blurred so not worth posting. It plugs into this hole here and engages with the input shaft you see.
Unfortunately I didn't think to remove the button plate before trying to fit the gearbox and found out that even though the bracket provided a great way to hold the now 40-odd kilos of iron and steel it also took the paint off the edge of the button plate so I'll have to re-do that later. You can also see where some of the paint has chipped away with the masking tape, I've been having a constant battle trying to get stuff to stick to this 1960's red filler, I dread to think what is in it so I've been using my dust vac on the DA sander the whole time.
Eventually I got the button plate off, the gearbox fitted then the button plate put back on. The gearbox is secured by these 7No M10 bolts and two taper pins.
Here you can just about see the clusters before I put the cover plate on and the output gear is the one on the right which meshes with the idler on the next assembly.
Pete.
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Next up was the feeds gearbox - another big heavy item probably 30kg also. This is belt-drive from the motor the same as the spindle gearbox. I used a 3t trolly jack to support it, and to make locating it easy I put a couple of pieces of studding in the bolt holes.
Once that was bolted in tight I put in the Y-axis feed shaft and bevel box.
The bevel box is very simple but clever, it has a sliding dog that engages either feed direction and the dogs are sloping one side so it kicks the feed out of engagement when it hits a stop. This bevel box at the top of the pic drives the y-axis screw. The big gear just below it has nothing to do with the Y-axis, it's the idler for the spindle gearbox output. The feed screw is driven by a keyed stub end and the bevel at the bottom of the pic is for the y-axis handwheel.
Once that was bolted in tight I put in the Y-axis feed shaft and bevel box.
The bevel box is very simple but clever, it has a sliding dog that engages either feed direction and the dogs are sloping one side so it kicks the feed out of engagement when it hits a stop. This bevel box at the top of the pic drives the y-axis screw. The big gear just below it has nothing to do with the Y-axis, it's the idler for the spindle gearbox output. The feed screw is driven by a keyed stub end and the bevel at the bottom of the pic is for the y-axis handwheel.
paradipiro
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Beautiful progress! That gearbox.. is heavy AF..
That red primer is "Minium red" Lead(III)oxide (Pb3O4). The best anti-rust coating at its time.
Sergei Slovenija
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red lead appears bright orange. Its color cannot be confused with anything else. The photo mill shows ordinary iron oxide + linseed oil.
Windy Miller
Semi-Professional Potterer!
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You know what @Pete. that green colour has really grown on me! Seeing a few odd bits and pieces in your workshop I wasn't so keen, but now you have more of it done and it's all coming together I really like it - I think it looks great!
Great to see to see you back at this and looking lovely. I like the green, too much grey can be a bit gloomy at times, this should brighten the workshop in the winter.
Looking forward to hearing it run as the gears should be a lot quieter than my Alexander was! Full speed she was like an air raid siren, or was that Lassie from Porkies
Looking forward to hearing it run as the gears should be a lot quieter than my Alexander was! Full speed she was like an air raid siren, or was that Lassie from Porkies
Brad93
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Kawasaki green no?
Pete.
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This weekend I have stripped and re-assembled the gear change mechanism, which turns the gearbox selector by a chain drive. The lever turns a dial via an internal epicyclic gear and gives a wide range of travel speeds, but the system maintains chip load per tooth if you happen to change the spindle speed but keep the feed the same. Travel feed rates vary from 5/8" (16mm) per minute to 19-11/16" (500mm) per minute.
I rebuilt the accessory sockets and fitted the newly-painted covers. Still got to replace the rubber seals under the caps when I get chance to make them. Then I fitted the assemble to the machine ready for wiring time.
I fitted the Z-axis support bracket and gear just a test fit to check the gear engagement. I'm waiting for new bolts to fit it properly and I have to make some taper pins.
I painted the lever assembly for the y-axis auto feed and assembled that onto the machine
I also dipped all of the little brackets and fittings that hold the dead stops for the Z and Y axis and the gauge block plate for the Y axis and painted those too. Here is how the machine stands right now.
One thing I've got to do is either replace or make a new sight glass for the gearbox oil level. I doubt I will find one so it's going to be either copy this one in acrylic or fit a more modern type. This one has not only gone cloudy but also warped and is unlikely to hold oil.
I rebuilt the accessory sockets and fitted the newly-painted covers. Still got to replace the rubber seals under the caps when I get chance to make them. Then I fitted the assemble to the machine ready for wiring time.
I fitted the Z-axis support bracket and gear just a test fit to check the gear engagement. I'm waiting for new bolts to fit it properly and I have to make some taper pins.
I painted the lever assembly for the y-axis auto feed and assembled that onto the machine
I also dipped all of the little brackets and fittings that hold the dead stops for the Z and Y axis and the gauge block plate for the Y axis and painted those too. Here is how the machine stands right now.
One thing I've got to do is either replace or make a new sight glass for the gearbox oil level. I doubt I will find one so it's going to be either copy this one in acrylic or fit a more modern type. This one has not only gone cloudy but also warped and is unlikely to hold oil.
