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  #11  
Old 11-09-2019, 01:29 PM
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As Cutter said, just use the thumbnails at the bottom of the post and not between text sections. You can refer to pic 1, pic 2, etc. in you text. We are all used to that method, so we can follow along just fine. Cutter can move the thread for you.
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  #12  
Old 11-09-2019, 01:56 PM
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Just to clear something up, did you make the gear that you stripped out, using the “broken “ mill? If so, you have to give yourself some good credit for that.


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  #13  
Old 11-09-2019, 03:58 PM
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Quote:
Originally Posted by MrCrankyface View Post
milomilo: Apologies, I'm not too proficient with this kind of uploading!
cutter: Thanks and apologies! I like to have them stringed into the text as it makes it easier to follow along to what I'm trying to describe. But how do I get rid of the thumbnails at the bottom if I do as such?

Currently I add them to my text with this:
[ url=url to fullsize picture][ img]url to thumbnail[/ img][/ url]

How do I add them to my text so it doesn't also display them at the bottom row?

Ironman: I will report the thread and ask a moderator to move it.
Sounds like you're being a bit pro-active with your tags but truthfully, I never try to insert the thumbs into the narrative so I may not be so sure. But I think if you will just upload the pictures to the server in the order you want them to appear then click the little paperclip icon where you want a thumb to appear, that should work. In my 15 years here I've never seen this double thumb thing before.
Other members who do use the "Insertion" thing can probably tell you better how to do that.

FYI, we do not have actual "moderators". I do have admin privileges so I moved your thread. In lieu of moderators, we deal with unruly members differently, using a form of redneck voodoo that usually involves invocations and possums and sometimes a couple of fat ladies who really shouldn't be seen naked. In the very rare instances when that fails to achieve a satisfactory outcome we can access the Carousel from Logan's Run.
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  #14  
Old 11-09-2019, 05:32 PM
MrCrankyface MrCrankyface is offline
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Quote:
Originally Posted by cutter View Post
we deal with unruly members differently, using a form of redneck voodoo that usually involves invocations and possums and sometimes a couple of fat ladies who really shouldn't be seen naked. In the very rare instances when that fails to achieve a satisfactory outcome we can access the Carousel from Logan's Run.
Made me laugh out loud.
I also can't believe how I've managed to miss that paperclip...
Makes my life so much easier.


toprecycler: Yes sir.
After considering my various options I took the one I liked the least but could at least afford.
Made this tool with my tiny mini-lathe(I have since upgraded)
HSS was ground to fit the teeth gaps as good as I could get it.
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Welded up the gear and faced it off
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This is what I ended up with after hours of nibbling away with the tool I made.
Not having a very slow powerfeed made it incredibly tedious.
You can visually see the tooth profile isn't quite right, not sure if my jig was bad or my tool, neither were optimal but I learnt a lot!
Looks a bit worse than it really is from this angle though.
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Edit: Fixed all of my previous posts as well so there's no more double pictures.
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  #15  
Old 11-09-2019, 05:43 PM
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Nice job did you have a indexing head? Doesn't the mill have a shear pin?
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  #16  
Old 11-09-2019, 09:21 PM
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Crankyface is going to fit in well here, we like pictures and he got that down pat.
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  #17  
Old 11-10-2019, 12:11 AM
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I did not know K&T made a mill that small.
Friend had one must have weight on the plus side of 6000 lb's
It was at least a #50 spindle.

The weird thing is the spindle motor also powers all the table feeds.
I don't remember if it was with a driveshaft type of thing or cable to get power to the table.

I'm thinking the spindle motor may have also turned the coolant pump. or just the larger K&T's.
in other words only one electric motor.
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  #18  
Old 11-10-2019, 06:21 AM
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Welcome to the site. If you haven't already done so, check out Keith Fenner's YouTube channel. He has a K&T that looks like yours and is one heck of a machinist.

Dave
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  #19  
Old 11-10-2019, 08:49 AM
MrCrankyface MrCrankyface is offline
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digr: Thanks! I used that home-built gadget on page1. A 3D printed disc to index the teeth and then clamp down on the two shaft holders to try to lock it.
As far as I've understood it, there's a clutch that's supposed to slip when it gets overloaded like that. Clearly the clutch held better than the sprocket.

GWIZ: Same thing on this, one 3hp motor powers every little thing on this machine. The power routing is interesting to say the least.
Motor goes up to some gearbox via pulleys, the gearbox has long splineshafts going along the height of the mill, sending power into the knees gearbox.
The knees gearbox sends power to XYZ powerfeeds through splineshafts and spur/bevel gears.
Took me a while to understand it.

Dave Lee:Keith was actually one of the first I found when I started researching this machine, I have learnt tons from his, Abom and Keith Ruckers videos!


Time for more pictures..

After using the mill for quite a bit (during those 80h I mentioned) making parts for my 1965 Volvo Amazon(Volvo 121 abroad I believe) I noticed more and more how the powerfeeds would not move linearly but rather in a jumpy motion so I decided to "fix" it in an unorthodox way I guess.
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Enter ... Stepper motors and CNC controllers.
I'm going to use the Mach3 software which needs a dedicated PC for it.
The power supplies and stepper drivers were bought but the rest have just been lying around for years.
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About halfway wiring everything together, took me quite a while with lots of pauses, trying to figure out what goes where and why.
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Finished all the wiring and it should pretty much be a CNC controller by now.
3 fans in the front suck in air through the filters and 2 fans in the back throws it back out.
This hopefully keeps the box slightly pressurized so it doesn't suck in dust through small leaks in the box.
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  #20  
Old 11-10-2019, 09:00 AM
MrCrankyface MrCrankyface is offline
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Prototyping up some motor mounts I started with paper templates, later moving on to 3D printed templates of my designs.
Rather find flaws on a easily reprintable piece than a piece of metal I've spent all day on.
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Lots of hours later .. Bugs ironed out and remade everything in mild steel.
Left is Z and has a torquier(is that even a word?) motor, right is the Y axis.
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Simpler holder for the X axis. Z and Y became overcomplicated due to my lack of experience designing things like these.
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Still mostly using old scrap to make these things. Got a few of these old pipe lids that I managed to use up making motor plates.
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Voilá, one CNC almost ready to run!
Feeds perfectly now. You can mill "as normal" by just jogging it with a wireless keyboard or you can send it a full program to do more advanced manouvers.
Keep in mind it's still using the original screws with tons of backlash.
The software can compensate for that backlash up to a point but I'm not expecting thous here.
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This brings us almost up to date.

Edit:
Finally edited together a video about this project so far.
Shows it doing some work!
https://www.youtube.com/watch?v=41TkD5hwicA

Last edited by MrCrankyface; 11-10-2019 at 10:45 AM.
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