Quarantine Projects!

[C-Bag]

I'm not sure it makes it have more turning capacity than the Bedair BT. I know I looked at it years ago when I was trying to get ideas but can only find one by another guy. I like the offset because it made sense to me. Check out Jere Kirkpatrick's you tube channel, that's where I got the idea.

Even though I'd never done any ball turning and on the 9x20 it sets it to the front of the carriage where the support is. Mine is way beefier than the one I saw on the Bedair page and because the pivot is so big it can support the cutter out to almost 4" radius so I guess in that respect it has more capacity. But it can't swing 4" over the pivot in convex/ball mode but in concave mode might. Dunno, this is all new to me.

 

[cascao]

Well, that my first COVID project

Not know the name in english. It's for keeping door from closing with wind

 

[Tio Loco]

Showing my age to quote Red Skelton: 'Busier than a setting hen in a doorknob factory'

My humble take on a ball turner: https://www.hobby-machinist.com/threads/radius-turner-from-boring-bar.83317/

Whipped up a grinding station to get all of the grit away from the lathe. The casters allow it to be swiveled 180° for access to the Tormek and the Proxxon miter saw.



Dug out the 3D printer, installed a new nozzle and throat, re-routed wiring into a cable chain, and re-calibrated everything.



Then printed an AXA indicator mount.



Personally, I'm extremely thankful for my little hobby shop. I cannot imagine quarantining in an apartment.

 

[C-Bag]

Like all your projects. I looked at the boring head BT design and thought it was cool but wasn't sure about the cutter. I like your solution with the round carbide, never seen that before. Didn't know about those. I also like the workstation and everything in my cramped shop is mobile workstations including my work benches. I feel you get more use being able to access all sides. I also do the wire shelves for the mobility and that they don't accumulate schmootz on them. I'm also grateful for my cramped shop and being useful helps me keep my anxiety down.

 

[C-Bag]

Well, that my first COVID project

Not know the name in english. It's for keeping door from closing with wind

Nice! It has a very complicated name in English......door stop I thought this was the first of a large scale chess set, never would have thought it a door stop.

 

[Weldo]

Hey @C-Bag where did you get the plans for the ball turner? You have me curious now! Although I confess to not knowing what you mean when you say one design has an offset and the other design does not. To what exactly are you referring?

@cascao that thing looks awesome! How did you do the color?

Personally, I'm extremely thankful for my little hobby shop. I cannot imagine quarantining in an apartment.

This. For sure. We are all blessed with some work space no matter how small and the tools/skills to keep busy.

Also to @Tio Loco, how does the indicator holder fare against the wedge of the toolpost? Do you have to be ginger with it?

 

[Weldo]

I changed the oil in my truck this morning. Greased the U joints and cleaned the windshield. New wipers even!

With the truck squared away it was time to hit the shop! I had this broken bicycle pump since last summer. A friend was tossing it and said it still worked. I can work with that!

You can see the broken base. I removed the gauge and hose for ease of working.



I was considering welding a plate to the bottom but it turned out to be pot metal. So I had to use fasteners somehow.



I cut out a piece of aluminum bar with a 10" chop saw and sanded to shape. Then I clamped the pump base to the plate and drilled pilot holes through both at once so the locations should be exact.

After pilots I opened up the holes in the base to 11/32" and drilled the plate to 0.257" for 5/16-18 threads.



It worked out pretty well! I also figured out that the pump body was threaded to the base. I removed it to drill the holes on the drill press. Also lately I've been starting taps in the drill press. Not under power, but I'll chuck up the tap and turn the chuck by hand, holding down pressure lightly with my other hand. Once the tap slips in the chuck I un-chuck and finish by hand.



Seems to work!

 

[C-Bag]

I don't generally use plans. I gather ideas looking at others builds or commercial samples. I don't know if there is a name for what I call the pivot. It's the round thing the cutter and handle mount to that rotates the cutter in order to cut the radii. All the similar type of BT I've seen the pivot when mounted would be in the center of carriage.

 

[Tio Loco]

@Weldo, seems pretty solid. I didn't crank down on it full bore as that's not necessary, it just needs enough pressure to hold it stable. I printed this with 20% infill, based on Blondihacks notes in her version. This is a different version which seems a bit more flexible as to what indicator can be used.

If you wanted to make it super strong, you could up the infill. I think at 100%, Cura was projecting a 19hr. print vs 4hr. at 20%. Here's an aborted print (forgot to add supports) at 20%

 

[Logan 400]

My wife has a yard art fan that had a 7/16 shaft rod to support it. Every time the wind blew more than 10 mph she would have to stand it up again. This is the new stand and wife is happy.
Jay