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Thread: AL-250G set up and ready to go.
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11th April 2012, 07:32 PM #1Banned
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AL-250G set up and ready to go.
The new lathe on it's stand and ready to go, actually I've already used it to make the coolant step down tube and nozzle. Attachment 204635
Painted hammertone and waiting for ply inserts.Attachment 204636
Rear adjustment leg: Attachment 204637
Coolant system is a fountain pump pumping from a container under the swarf tray through a tap and back down to container. Coolant delivery is via a take off tube after the tap and through another small tap to the left of the on/off switch. The bigger tap on the right is only used if I need a higher pressure, otherwise it's left fully open. This system keeps the coolant mixed and aerated (no smells). Attachment 204634
To mount it, I had to strip it down to just the bed and headstock and lift it up on bricks, one at a time, until it was high enough and then slide it onto the mounting blocks. The mounting blocks sit atop 4mm neoprene/rubber pads that stop the tray leaking and also take out the slight twist in the stand (.05). Next job is to strip it down again, remove all the bog and paint and paint it again, minus the bog. I'll also be improving the gear selector system which isn't the best.
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11th April 2012, 08:55 PM #2Dave J Guest
Nice job, well done.
Any chance of some pictures of your coolant set up? It may help members out in the future.
With stripping the bog I don't blame you, but you will need to replace it as you will find it's uneven. The stuff to put back on it is car body filler. It is 2 part and dries in about 10-15 minutes and is not soft like the white crap that comes on them. It's around $40-50 for 4 ltrs and that should be plenty for that lathe.
You then apply primer filler over the top and you will be ready for painting. The primer filler comes thick and you thin it down to suit, so at first you only thin it a bit so it acts like spray putty to fill any scratches from sanding the bog, then after rubbing that (which is easy) you thin some down to use as the final undercoat.
Once you get used to applying the bog you can get it pretty true, and don't be afraid to use something like a strait edge to get a true looking surface.
Dave
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11th April 2012, 09:05 PM #3Banned
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Bog and paint
If anyone asks I'll be happy to supply details of the coolant system.. On the painting side of things, I found on two previous lathes, after removing all the paint and bog, if you hit the bed with a hand belt sander it comes up pretty good, good enough to not need bog anyway. the remainder can be done on a bench sander.
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11th April 2012, 09:22 PM #4Distracted Member
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Golly that looks nice.
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11th April 2012, 09:25 PM #5
coolant
yes
Some details of the coolant system would be great .
MIKE
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11th April 2012, 09:26 PM #6
Looks good
Before you know it she'll be covered in chips and there will be splashes of coolant everywhere. Enjoy that brand new look while you can!
I don't know how good an idea the neoprene is, have you checked her for level? Although with a short machine it should not be too bad.
Thats a yes please on the coolant system, any idea has got to be better than spending $220 to buy one.
Ewan
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11th April 2012, 10:26 PM #7Banned
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Coolant system and neoprene leveling pads
Ok, I 'll post some picks of the coolant system. As for the neoprene, after it is sandwitched between the mounting blocks and the stand, you place a straight edge on top of each mounting block and line them up by sight, if out, just tighten whichever side is high until it's level. After that simply plonk the lathe on top and and run a feeler gauge around the edges between the lathes feet and the mounting blocks, repeat the process above until you can't insert the feeler gauge anymore, a lot cheaper than $150 for a level you'll never use again and it will level the bed regardless of whether or not the lathes feet have been machined parallel. Given the machining quality on these lathes, I doubt very much if the feet are true, I know the mounting blocks weren't. Of course this only works if your lathe has mounting blocks and your lathe doesn't weigh too much.
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