They look very similar to these (which I'm planning to buy): Aliexpress.com Ball Nut Housing.
If anything I'd say they are lower profile than the one you've drawn up. The bottom bolt holes are in slightly different places but I'd be surprised if that was critical.
Looks like that's for a RM1605 ballnut, but your mounting holes for the nut don't match? The RM1605 holes are on 45 degree spacing and they're 5.5mm diameter holes so you'll struggle to get M6 through them!
So easy to assume they will be like the drawings only for something completely different to turn up.!! . . . .Thou in this case I reckon it's an Err has most ballnuts of this size use 45 Deg spacing & M5 bolts.?
Funnily enough I've taken home one of each item to measure with the vernier calipers ;)
Just received some spiral flute taps from China so once I've welded up the frame (should have all the parts cut by the end of today as I did all the 50x50x4 box this morning and just have the 50x25 bed supports and bracing angles to cut at lunch!) and got some Ali cut for the gantry I can start drilling and tapping to my hearts content
Edit.....yep all steel for the router frame (not support frame) is now cut. Welding starts tomorrow
Last edited by njhussey; 08-10-2013 at 12:46 PM.
Last edited by njhussey; 09-10-2013 at 12:47 PM.
Last edited by njhussey; 10-10-2013 at 01:04 PM.
That's looking really nice so far Neil. Not bad for a couple of 30min lunch breaks!
Slightly off topic, but I found a video that I thought you might like. A neat way of cutting FR4 or CF without the nasty hazardous dust : CNC Fräsen GFK Ruderhörner - YouTube (make sure you watch the last 30 secs for neat bit of automation).
I've ordered these other ballnut housing and in total I bought 4 for about £26~
just purchase but don't pay and then say you want 4 or however many.
I've been welding my frame up and now that I have gas it's going pretty well! though i wish i had as much space as you do!
I'll have a problem cutting CF like that as my router is vertical and for the first little while will have a wood spoil board until I can afford an aluminium one. Then I'll be able to use coolant :)
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