#garfield Logs

Nov 08 2017

04:57 PM * Tom_L sends rue_shop3 a bicycle
11:08 PM rue_shop3: :)
11:09 PM Tom_L: found out the hole in my lathe isn't big enough for a 16mm shaft to fit thru
11:10 PM rue_shop3: :(
11:10 PM Tom_L: i'll have to take them to my friend's shop
11:10 PM rue_shop3: grizley?
11:11 PM Tom_L: mine?
11:11 PM Tom_L: no
11:11 PM Tom_L: an old sears atlas
11:11 PM rue_shop3: cool
11:12 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/sumo_files/lathe3.jpg
11:12 PM rue_shop3: sears sure teamed up with a lot of people before calling it quits
11:12 PM Tom_L: yup
11:13 PM Tom_L: to get these screws cheaper i have to get this one kit otherwise they cost alot more
11:13 PM Tom_L: but 2 of the screws are too long for what i want
11:14 PM Tom_L: so i'll have to cut them down and turn the end to fit a 10mm bearing race
11:14 PM rue_shop3: its just metal
11:14 PM Tom_L: i know
11:14 PM Tom_L: they just won't fit in my lathe
11:14 PM Tom_L: i measured it today
11:14 PM Tom_L: nice having accurate cad models of stuff you don't have
11:15 PM rue_shop3: huh, I think this was cut with a 25mm nibbler...
11:15 PM Tom_L: i'll be gone next week? i think
11:15 PM Tom_L: let's just say.. soon
11:15 PM rue_shop3: heh
11:16 PM Tom_L: can't honestly remember what day
11:16 PM rue_shop3: your doing good
11:16 PM rue_shop3: crap, I need to name my printers
11:16 PM Tom_L: how's that?
11:17 PM rue_shop3: I'v not done much in the time you have puled this togethor as much as yo uhave
11:17 PM Tom_L: got the plate to hold the Z and Y bearing blocks
11:17 PM Tom_L: got the hole patterns all done in cad
11:18 PM Tom_L: transferred one to my smartcam package
11:18 PM Tom_L: realized i can't drill them on the sherline
11:18 PM Tom_L: unless i flip it around once
11:19 PM Tom_L: then i'll lose accuracy
11:19 PM Tom_L: i won't drill them until i have parts anyway
11:20 PM Tom_L: one thing, i don't know if the screws are 5mm or 6mm
11:20 PM Tom_L: you know catia knows all about screws and how big to make the head size hole and step depth?
11:20 PM Tom_L: i thought that was kinda nice of it
11:21 PM Tom_L: so they mount recessed
11:23 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Y_Axis_plate.jpg
11:24 PM Tom_L: it all fits somehow
11:24 PM rue_shop3: youch
11:24 PM Tom_L: 2 bearing blocks on each axis X & Y and the screw mounts for both
11:25 PM Tom_L: i think i need to flip the recess on the holes on one axis though
11:25 PM Tom_L: so it's recessed on the backside
11:25 PM Tom_L: like 4 of the holes you see are
11:25 PM Tom_L: that would be for the X axis
11:26 PM Tom_L: err no, Y
11:26 PM Tom_L: one of em...
11:26 PM Tom_L: 1/2" plate
11:28 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Z_Axis_plate.jpg
11:28 PM Tom_L: Z isn't so bad
11:28 PM Tom_L: but i see a mistake on it too
11:28 PM Tom_L: all the holes should be recessed on the same side
11:29 PM Tom_L: then i'll add more to mount the spindle to it
11:29 PM Tom_L: once i make a plate for that
11:30 PM Tom_L: 5mm seems kinda non standard, is it or is that common?
11:30 PM Tom_L: i'd think 6mm to be more common
11:31 PM Tom_L: you should build one of these too
11:32 PM rue_shop3: its the budget for the sliders
11:32 PM Tom_L: so use something else
11:32 PM rue_shop3: I'm attempting to work out box slides
11:32 PM Tom_L: but the size looks good to me
11:32 PM Tom_L: i'm making drawings for most of the parts
11:33 PM Tom_L: i can export them to something you can view
11:33 PM rue_shop3: I'm still kicking around the peices of channel and I beam
11:33 PM Tom_L: we could cad that up too if you want
11:33 PM Tom_L: just need to know what you've got
11:34 PM Tom_L: it all comes together better if you do
11:34 PM rue_shop3: sliders is still a showstop
11:34 PM rue_shop3: I could aluminum cast an inter-axis, and mill it
11:34 PM Tom_L: i'll admit, that's the biggest expense for this one
11:34 PM rue_shop3: yup
11:35 PM Tom_L: which i haven't committed to yet
11:35 PM Tom_L: all the metal is cheap
11:35 PM Tom_L: i got maybe 20 bux in the steel
11:35 PM rue_shop3: part of the thing about the screws too, is that its much better to have some kinda roller screw, not just a 60*
11:35 PM rue_shop3: the friction in the leadscrews I been using is a major point
11:35 PM Tom_L: the alum table will cost a bit
11:36 PM Tom_L: that's why i wanna try ballscrews even if they're cheap chinese junk
11:36 PM rue_shop3: no, you should see the material stock I have for casting
11:36 PM Tom_L: i know you can get high quality stuff but you pay alot more for it
11:36 PM rue_shop3: part of my problem is delay on selling myself the ideas I'v come up with
11:37 PM Tom_L: test them in cad first
11:37 PM Tom_L: that's free
11:38 PM Tom_L: even if i don't get this done, i've had a chance to keep up my cad skilz
11:38 PM rue_shop3: I have an idea for a 60* 'nut' thats got one bearing with a triangular ring on it, and two flat bearings
11:38 PM Tom_L: funny how much you forget if you don't use it
11:39 PM Tom_L: bearings mounted in a Vee?
11:39 PM rue_shop3: no, for the feed screw
11:39 PM Tom_L: against the corner of some angle or square tube?
11:39 PM rue_shop3: use normal 60* rod, but make a type of bearing'd nut
11:39 PM Tom_L: i'd have to see some scribble to follow
11:39 PM rue_shop3: so far, for sliders, I'm sold on box ways
11:40 PM rue_shop3: yea
11:40 PM Tom_L: box ways are heavy duty
11:40 PM Tom_L: you find them on all good cnc's
11:40 PM rue_shop3: yup, so even in a small app they should do ok
11:41 PM Tom_L: and they're simpler to work with than the wedge style
11:41 PM rue_shop3: I like the design on the .... that brand of other cnc I was on about
11:41 PM Tom_L: grizzly?
11:41 PM rue_shop3: no
11:42 PM rue_shop3: _ _ _ _
11:42 PM Tom_L: big or little cnc?
11:42 PM Tom_L: tree?
11:42 PM Tom_L: okuma
11:42 PM Tom_L: fadal
11:42 PM Tom_L: mori seki
11:42 PM rue_shop3: small I was going on about how they are better than sherline
11:43 PM Tom_L: ahh
11:43 PM Tom_L: mori seki is a cadillac btw
11:43 PM Tom_L: of cnc's
11:44 PM Tom_L: taig?
11:44 PM rue_shop3: yup taig
11:44 PM rue_shop3: like how they did the Z
11:44 PM rue_shop3: slider
11:45 PM Tom_L: square column instead of round
11:45 PM Tom_L: round can turn on ya
11:45 PM rue_shop3: not the frame, the box slide
11:45 PM Tom_L: http://www.taigtools.com/mmill.html
11:45 PM Tom_L: i know what you mean
11:45 PM rue_shop3: the X has my eye too
11:46 PM rue_shop3: with the cheat with the square stock
11:47 PM Tom_L: http://www.deansphotographica.com/machining/projects/mill/2.jpg
11:47 PM rue_shop3: I think they tapered the shim on the left tho
11:47 PM Tom_L: better design but it's just too small for me
11:48 PM rue_shop3: on the table side there is a brass bit
11:48 PM Tom_L: right, to tighten it up
11:48 PM rue_shop3: I can make one of those on the mill
11:48 PM rue_shop3: I think thats just overgrown keystock
11:49 PM Tom_L: my problem is, i've got to design stuff i know i can do with the tools i currently have
11:49 PM rue_shop3: drillrod comes in lots of shapes
11:49 PM rue_shop3: yep
11:49 PM Tom_L: or find a way around it
11:49 PM Tom_L: the hourglass has run empty
11:50 PM rue_shop3: gnight
11:50 PM rue_shop3: I'll get you some extra from the sand blaster tommorow
11:51 PM Tom_L: http://www.cartertools.com/Step1.jpg
11:51 PM Tom_L: that's not box ways though
11:51 PM rue_shop3: what an annoying place to hvae the backlash adjust?
11:52 PM rue_shop3: but yea, the brass .... ________
11:52 PM rue_shop3: my brain is NOT happening for me today
11:52 PM Tom_L: i can't figure out that switch think in the garage
11:53 PM rue_shop3: I'd need a drawing of cunductors :)
11:53 PM Tom_L: i may have pulled the hot wire for the security light from the wrong wire
11:53 PM rue_shop3: yup
11:53 PM Tom_L: it's not a big deal, i was just puzzled by it
11:54 PM rue_shop3: ok, I think Polyscout and Repspite
11:54 PM Tom_L: too hard to keep track of
11:54 PM rue_shop3: I should make supper
11:54 PM Tom_L: had home made chicken pot pie tonight
11:55 PM rue_shop3: not if I put the names on the pritners
11:55 PM Tom_L: baked in cupcake tins
11:55 PM rue_shop3: gibb
11:55 PM Tom_L: the large tins
11:55 PM rue_shop3: tapered gibs
11:56 PM rue_shop3: !@#$? can I make a round gibb?
11:56 PM rue_shop3: yes, but I cant make a hole for it, haha
11:56 PM Tom_L: why round?
11:56 PM rue_shop3: no
11:56 PM rue_shop3: cause I could make the taper on my lathe
11:56 PM rue_shop3: dosn't work tho
11:56 PM rue_shop3: just 3d'd it in my head
11:57 PM Tom_L: 2 triangles that form a square when put together
11:57 PM Tom_L: then squeeze the wedge
11:58 PM rue_shop3: http://www.cartertools.com/Step1.jpg not sure how I could cut the dovetail at an angle and then make a matching gibb
11:59 PM Tom_L: don't use dovetails
11:59 PM Tom_L: use box ways
11:59 PM rue_shop3: no, but even with the box ways they have a tapered jibb