What mods do you have planned for it?
Ed
Printable View
What mods do you have planned for it?
Ed
lol. well front foot pegs for one.
Hoss
Maybe now you will be able to mount the 0602 on the rf 45, cnc the whole thing for Hoss' Vertical Machining Center.
I now can state that I have a stable running cnc g0704. I am trying to make adjustments to make the machine as precise as possible using all stock parts. I had adjusted the gibs quite tight, but as soon as I adjusted the lead screw nut the steppers started to stall. With tight gibs and unadjusted lead screw nut I measured .011 backlash on the x. With gibs looser and lead screw nut tighter I can get to .006 on x ( only stalls 1" from endcap) and .004 on y. When I plunge a 4 flute 3/8 hss cen cut endmill at .25 ipm I get some vibration from play in the gibs. In order to pocketmill a 1" diameter (using same endmill) I am running 3 ipm feed .06 doc 30% stepover and 800 rpm spindle with backlash comp and exact stop on in mach. The hole ends up round and to dimension as far as my ability to measure. When I had the gibs tight I had less vibration, should I back off the lead screw nut and tighten the gibs again and readjust backlash comp?
I take it by the rpm you're running you are cutting steel, if ally the rpm needs to go to the max.
If your CAM allows a ramping plunge you'll get better results.
You don't want the gibs too tight or you'll get stiction which will throw off the backlash measurements.
You want them snug enough that you could still move the table by hand with a little effort but no side to side wiggle.
The leadscrew nuts should be similarly snug that you can still turn them by hand.
.002 - .005 is about the best to be expected from the stock setup.
Hoss
http://www.youtube.com/watch?v=2L6DdTqY6QA
Wee bit of progress on the coolant tank and drain.
Used a nice drain with a flat flange from mcmaster.com part#2673K1
I'll likely put a piece of the filter in the drain under the screen to catch the fines.
Hoss
http://www.youtube.com/watch?v=qiZybgEdHBM
This drain is similar but better than what I did on the x2 years ago, it worked very well.
You can see the same filter box.
http://www.hossmachine.info/projects...lood%20coolant
Attachment 194828
Steel, yes, forgot that detail. I took the bed off, cleaned and reassembled everything. I tried to find a happy medium with the gib adjustment. The x axis is tight when the right side of the table enters the saddle. This causes sufficient stiction that I will set my limits 2" short on that end or have to have gibs so loose that the table will be sloppy. With adjusted nuts I managed .006 on the x and .008 on the y. Not super but manageable for now. Maybe I can make a program to cycle the table on that end at low ipm back and forth to try to work it smooth?
Do some reading here.
Shop Info
Hoss
I did the same drain for my old Taig, it was hell keeping it clean. I'd suggest a trough type drain. (see tormachs drain)
In case anyone is interested this is where I got the scooter. They have some cool toys.:)
Roketa MCR-15-50 50cc 2-Stroke Gas Scooter with Top Speed 45+MPH, 12" Aluminum Wheels, Large Body Frame - Free Shipping
Hoss
Finished up the plumbing and put casters on my bandsaw.
Slow but sure.
Hoss
Yeah it's a little tippy, could have made broader bases but space is limited. Just have to be careful.;)
Thanks, Hoss
some wooden box with sand mounted across onto the casters board would make stable it..
I now can state that I have a stable running cnc g0704http://garden.fulltomlins.com/02.jpg
I'm thinking of putting a low shelf the length of the saw inside and store my rarely used heavy vises etc. there for some stability.
Hoss
Speaking of vices, I went looking for one for my mill a while back, and wanted to get a really good one, so tracked down a beautiful Vertex at a local supplier, who said it was the last one he had, and reduced it quite a bit.
I've always been of the belief that bigger is better, and you can never over engineer anything, but I think I was a bit too hasty with this one. When I got it home and unpacked it from the ginormous crate, it was over 70kgs, and massive! So big and heavy in fact when I tried to use it on the mill, it would cause the table to tilt a little!
I haven't been able to use it, and currently have it sitting beneath my Brobo saw as ballast so it doesn't tip over on me!
I can tell you it looked so much smaller in the catalogue!
cheers, Ian
Now you have an excuse to get a much bigger machine, no sense in that vise going to waste.;)
Hoss
Hey Hoss,
I got some Banjo Camlock couplers from McMaster to cleanup the plumping for my coolant pump. So now I have a 3/4' line that comes up into the chip tray which help lowers the total pump height so that 425 GPH pond pump really makes puddle now when I am making chips. I used two male couplers one female NPT 5535K59 and other with male NPT 5535K66 that go thru the base plate for my enclosure. Then with female couplers 5535K52 with hose connection the pump and manifold connect to new stub thru base. This should make nice when it comes time to service pump or tear down enclosure to work on the mill.
Attachment 195698Attachment 195700Attachment 195702