clean the sump coat it with rubber paint, it's apparently where the coolant is draining to already. surface the top of the spacer use a piece of plate for a shim. put a point on a bolt to locate where the hole goes roll it over and hand drill. don't worry about the missing thread there's still 90% of them in there. yes roll out chip pan with shelf for other stuff is good idea.
Maybe a 16mm transfer punch, followed by a magnetic base drill upside down (small pilot) and if it is in the right place then use a 15mm Rotabroach type annular drill? Might be easier if you turn the whole bed on its side or even upside down?
I would use cordless drill for the hole, I'm confident I could do it, it's not fun definitely but can be done. First 6mm hole then straight followed by 16mm with fresh grind on it
I was going to say Mag Drill for the hole. Or if it was me, without a Mag Drill I would use a 16mm hole saw and put a car jack under the cordless drill to save pushing it upwards by hand. Also have a sheet of thick paper between the drill chuck and the hole saw to divert the chips away from the chuck and the drill ventilation holes.
I think the first comment is what I was thinking. On the other base I think to machine the casting true and then use shim . And about your chip pan I made one on wheels and a hinge on one side to drop chips into my loader bucket. I have two setups like this it works very well I used crazy wheels on all corners
I would machine and fit the base proper with no filler or it would always bother me. Of course I have an hbm that would make that a pretty easy job so I might be biased.
I see you got good use of the crane I remember when you built it good luck with that hole I would use a drill motor and start small and take your time thanks for making your videos
Is it too late for a warranty claim ? To locate the hole grind a point on a M16 bolt thread it into the base so it is slightly proud of the surface and lightly snug up the other 3 bolts to leave a mark for center punching . Using a drill guide it should be relatively easy to put a hole in the bed casting. Is that your Dainichi over at Factory Dragon's place? Cheers Eric
What if made a plate to be held by other three holes to put a mag drill on. I'm surprised you're not going to clean the coolant tank. Was the chip pan sheet metal? I guess I don't remember how bad it was.
Here in the US we have a product called J B WEld. an epoxy with a content of steel filings. Maybe a product like that is available to you. Start with the bottom casting as level as you can and build up the parts like mortor between bricks.
It is almost completely stripped down. It will never be in such an ideal state to turn it over. Just get it down on the floor and roll it over. It's only cast iron, it should drill easily. Enjoying the videos, keep up the good work.
Another vote for mag drill. Also, I would just use epoxy to rebuild the bad casting area. If you are worried about strength, drill and tap it for some bolts to rest the bed on and then fill the gaps with epoxy.
I have same lathe 1K625 and guess what? There isn't same hole in casting.... And where you gone...? I think that your Dooson leave your shop? Because one shop got Dosson from Finland it might be yours... ;) Greatings from Lithuania ;)
I wouldn't bother drillinga 4th hole. I must say, I've found faults in every machine (casting) I own, but on my Russian machine they are the worst and the didn't even bother to mask them. Nothing important but still... (If you own a machine with perfect castings, you porbably haven't disassembled it yet ;D ) I'm looking forward to see some scraping (my lathe project isn't finishe eigther). Cheers, Johannes
REMOVE the "gunk" or you will NEVER sleep well again .... you will also never be able to show the repaired lathe to a GERMAN with pride (book keeper says if CLEAN does not COST EXTRA then do it)
clean the sump coat it with rubber paint, it's apparently where the coolant is draining to already. surface the top of the spacer use a piece of plate for a shim. put a point on a bolt to locate where the hole goes roll it over and hand drill. don't worry about the missing thread there's still 90% of them in there. yes roll out chip pan with shelf for other stuff is good idea.
Maybe a 16mm transfer punch, followed by a magnetic base drill upside down (small pilot) and if it is in the right place then use a 15mm Rotabroach type annular drill? Might be easier if you turn the whole bed on its side or even upside down?
Two minds with a single thought........ lol :o)
O,,,
I would use cordless drill for the hole, I'm confident I could do it, it's not fun definitely but can be done. First 6mm hole then straight followed by 16mm with fresh grind on it
I was going to say Mag Drill for the hole. Or if it was me, without a Mag Drill I would use a 16mm hole saw and put a car jack under the cordless drill to save pushing it upwards by hand. Also have a sheet of thick paper between the drill chuck and the hole saw to divert the chips away from the chuck and the drill ventilation holes.
I think the first comment is what I was thinking. On the other base I think to machine the casting true and then use shim . And about your chip pan I made one on wheels and a hinge on one side to drop chips into my loader bucket. I have two setups like this it works very well I used crazy wheels on all corners
First lesson when levelling a machine strip it down first check for missing holes uneven castings and yes remove unknown life form from coolant tank 🙂
I would machine and fit the base proper with no filler or it would always bother me. Of course I have an hbm that would make that a pretty easy job so I might be biased.
I see you got good use of the crane I remember when you built it good luck with that hole I would use a drill motor and start small and take your time thanks for making your videos
Is it too late for a warranty claim ?
To locate the hole grind a point on a M16 bolt thread it into the base so it is slightly proud of the surface and lightly snug up the other 3 bolts to leave a mark for center punching . Using a drill guide it should be relatively easy to put a hole in the bed casting.
Is that your Dainichi over at Factory Dragon's place?
Cheers Eric
Thanks for the update! :) Maybe the fourth hole was a locating pin?
What if made a plate to be held by other three holes to put a mag drill on. I'm surprised you're not going to clean the coolant tank. Was the chip pan sheet metal? I guess I don't remember how bad it was.
Here in the US we have a product called J B WEld. an epoxy with a content of steel filings. Maybe a product like that is available to you.
Start with the bottom casting as level as you can and build up the parts like mortor between bricks.
You could dry the old coolant tank out with some heat and fill it with sand if you don't plan to use coolant anymore
The coolant tank in my Stanko mill looks the same !
It is almost completely stripped down. It will never be in such an ideal state to turn it over. Just get it down on the floor and roll it over. It's only cast iron, it should drill easily. Enjoying the videos, keep up the good work.
suppaa, it looks like some mystery medal shim material, the area where there is no hole I would scrape the top and bottom a hole may appear!
Another vote for mag drill. Also, I would just use epoxy to rebuild the bad casting area. If you are worried about strength, drill and tap it for some bolts to rest the bed on and then fill the gaps with epoxy.
I agree with a couple of guys here saying to drill it out by hand from the underside. Fun? Maybe not but certainly doable.
I have same lathe 1K625 and guess what? There isn't same hole in casting.... And where you gone...? I think that your Dooson leave your shop? Because one shop got Dosson from Finland it might be yours... ;) Greatings from Lithuania ;)
Get some friends to roll it over and give it to her.
Play Safe From Elliot Lake Ontario Canada.
Sunpaa don't bother trying to fix it just shove it in the bin,since you got a new doosan lathe.😁😁😁
I wouldn't bother drillinga 4th hole. I must say, I've found faults in every machine (casting) I own, but on my Russian machine they are the worst and the didn't even bother to mask them. Nothing important but still... (If you own a machine with perfect castings, you porbably haven't disassembled it yet ;D )
I'm looking forward to see some scraping (my lathe project isn't finishe eigther).
Cheers,
Johannes
Get that Puma working the way you want?
You can repair the surface of the casting with a special nickel alloy repair electrode and then machine it flat.
I would vote against welding on this piece. They produce micro cracking and ''twist'' them.
REMOVE the "gunk" or you will NEVER sleep well again .... you will also never be able to show the repaired lathe to a GERMAN with pride (book keeper says if CLEAN does not COST EXTRA then do it)
I like your thinking.
@@weldmachine
I am his CONSCIENCE speaking
@@StephenMortimer very good.
@@weldmachine
This means I get very little sleep and lot's of coffee
@@StephenMortimer It's great to see him growing his business. I always wish him the best.
How far u get on lathe
Magnetic base drill press??? ;o)
O,,,
bastard you beat me to it :P
I was going to say that too!
Time for an update. :)
Hire a magnetic dril somewhere...
first comment is a winner i think
mag drill
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