2020 POTD Thread Archive

[GoceKU]

Waiting for concrete to harden is as boring as waiting paint to dry. I've been resting getting energy for the other side. I've also bought some more sand, the first side took much more than i thought.

 

[FOMOGO]

Decided I had whacked my head on the ram of the Gorton mill for the last time. Getting it to it's final resting spot necessitated cutting a hole thru the wall from the machine shop to the welding area. Blocked it out with 2x6, covered that with some scrap melamine, and trimmed it out with a little cedar. Had the mill up on skates, but it's 8,600 lbs was totally unimpressed with my 150lb effort at getting it to move. So not having access to a sky hook, I wrapped some long straps around the wall 2 bays over, and hooked a come-along to that and ran it thru the "hole in the wall" and hooked it to the mill. Took a bit of back and forth/up and down to get lined up, but got her done. Still have to make up some leveling pads, and it will have to come out a few inches to get the metal wainscoting in place, but minor concussions should be at an end. A little update on the shop heat. Have been keeping the heat at 64 when I'm working and turn it down to 50 When I leave at 7pm. Has been in the single digits the last few nights and when I get in the shop, usually around 10am, it has been in the low to mid 50's. This morning it was -2 outside, and 51 in the shop. So far the heat hasn't been coming on at all overnight. Will be adding another 6" of insulation to the existing 9" sometime in the next month. During the day when working the heat comes on infrequently, so hoping to get by on one propane fill (400gal) for the winter. Cheers, Mike

 

[pontiac428]

Are you going to whack your head on the Gorton when walking along the other side of the wall now? Just teasing, that's a great idea and it looks like you nailed the measurements. A tip for moving a very heavy machine on skates- use a digging bar (basically a 5' prybar) and walk the machine into position by taking 6" bites at a time using the bar as a big lever between the floor and the toe of the machine. I use a piece of scrap lumber to protect the floor while doing this.

 

[FOMOGO]

That thought had crossed my mind (what's left of it), but will be placing other equipment under it to keep it safely away from my cranium. I did use a 6' spud bar during the move. Cheers, Mike

 

[Tim9]

I was so happy with my little brass bolt to lock down the carriage, but all that joy went away when I went to use the South Bend and needed to reverse the gear train’s Reverse Tumbler. It’s a pet peeve I have of the 9” South Bend. The Light Ten and the Heavy Ten’s both have a locking lever.
But the 9” has a 3/8” bolt and one must find the 3/8” wrench.... loosen the lock down....move the lever....and then lock the bolt again.
I looked at a few pictures of modifications, and they run the gambit. I saw a mod on PM.... kind of simplicity at its best, which was just a big wing nut.

Anyway, I wanted a simple knob that is quick similar to my Clausing. Love the Clausing.

So, here’s my modification. Took a little fine tuning to get the two holes drilled just right. If I had to do it again.... I’d slot the brass plate which has the two holes. And then I’d have another thinner plate which has two screws holding it to the main plate. That way I could individually adjust backlash of the reverse tumble gears.

 

[Weldingrod1]

Nice work! I hated that bolt too!

Sent from my SM-G892A using Tapatalk

 

[Tim9]

Nice work! I hated that bolt too!

Sent from my SM-G892A using Tapatalk

Thanks man. And yeah it’s not a huge thing. Every time I thought about it.... I’d tell myself, do I really want to spend a few days making something thats not needed.

But, I’m glad I did make it now because it’s done. I’ll never have to deal with loosing my thoughts while looking for a wrench.

By the way. The hand lever I made is a spring loaded locking pin. Pull out, move up or down... release.

And.... I cleaned the old locking bolt threads and put a couple of drops of Blue Loctite 241 on the threads. The bolt is just screwed in enough to hold the reverse tumbler so it doesn’t move outward. Only other thing is to make two Delrin gears for the reverse tumbler so it doesn’t make so much noise. And I probably should also make another detent for the neutral position.

 

[extropic]

Thanks man. And yeah it’s not a huge thing. Every time I thought about it.... I’d tell myself, do I really want to spend a few days making something thats not needed.

But, I’m glad I did make it now because it’s done. I’ll never have to deal with loosing my thoughts while looking for a wrench.

By the way. The hand lever I made is a spring loaded locking pin. Pull out, move up or down... release.

And.... I cleaned the old locking bolt threads and put a couple of drops of Blue Loctite 241 on the threads. The bolt is just screwed in enough to hold the reverse tumbler so it doesn’t move outward. Only other thing is to make two Delrin gears for the reverse tumbler so it doesn’t make so much noise. And I probably should also make another detent for the neutral position.

Since you mention making some new gears, it looks, to me, like at least one of the gears, in your photo of the tumbler,
is badly worn showing very thin teeth. That wear may be the cause of excessive noise. If you're going to set-up to make new gears, you may as well make new steel ones also.

 

[Tim9]

I’m glad you picked up on the gears. Good eye !

And you are absolutely correct in that one gears looks to have very thin teeth compared to the other gear. I examined them...and one has the obvious signs of being a 70 year old gear. The one with the thinner teeth looks much newer. But, the thinner teeth of the newer gear isn’t the noisy one.

Now....the odd thing is my lathe is much noisier when the older gear is meshing.

Anyway, I had a broken tooth on my other 444z . So while I was making a Delrin replacement, I made two of them. I’m pretty sure I have the other one.....somewhere. Hopefully I can find it...otherwise I’ll make two new ones. I do remember that the Delrin was much quieter.

to be continued....

 

[rwm]

The for/rev tumbler on my new South Bend 10K uses a very similar arrangement with a locking pin. Nice work.
Robert