Thread: hiwin rail question
You could connect the bearing blocks with a piece of pipe so you charge both of them @ the same time so no need to drill both ends of the rail
Aren't these rails hardened and ground? Can you drill (and especially tap) them?
I would have thought so but Boyan seems to have managed it, perhaps he could comment.
I believe that you can cut threads with a spark eroder, but that seems a bit OTT...
I was looking at this yesterday. I'm going to buy some 6mm brass/copper grease pipe and some male stud couplings, elbows and tees and make it so there is just one greasing point per axis. I was thinking of doing it so that when the home command was given the axis all returned to the home position where the Z connected to the Y axis grease system and the Y axis connected to the X axis system so that there was just one point to lubricate...Neil...
Hiwin Lubrication Manual, so you know the proper quantities and other stuff.
Yes, that's what i meant. Drill the rail and inject grease through the rail.
Now in the manual 4.5 they say there is a thing called "Self-lubricating kit ‚E2’ "
Last edited by Boyan Silyavski; 20-12-2014 at 03:15 PM.
Yes it's better than nothing but the pipe and tube method is easy enough and you know the grease is getting exactly where it's needed.
Personally I'd fit a timer lubrication pump and pump oil thru the bearings. Timer pumps from china are relatively cheap now and they can be programmed to pump at regular intervals so you know the bearings are getting lubed and flag up or E-stop the machine if low on oil etc.
I don't really see what all the fuss is about, it's just a few tubes and simple parts to make on a lathe? I guess if you've not got a lathe then that doesn't help matters.
In my build log all the bearings and ballnuts are connected with tubes look towards the end of the of the first post in the thread:
The Y-axis rails are the same size as yours.
Jonathan - am I correct in thinking that all the oil pipes go direct to the sliding carriages/ball nuts? Presumably you also had to be careful about routing pipes and allowing enough slack for movement.
And for anyone who does not want or does not have the facilities to make the components, Arc Euro Trade (and probably plenty of other places) sell all the bits. I have a central lubrication system on my vertical mill, and it does mean that the slideways get lubricated much more often than when I had to do it all manually. It's a thought...
Last edited by EddyCurrent; 21-12-2014 at 03:14 PM.Spelling mistakes are not intentional, I only seem to see them some time after I've posted
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