Homemade Rotary Table - Part 1 - MHW Episode 78

In this video, I start work on creating a Rotary Table from a 5 kg Cast Iron gym weight.

#homemade #homemademinilathe #minilathe #lathe #metalworking #machining #homemaderotarytable

[MyMiniHomeWorkshop]

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[Bobs-Wrigles]

I think my ears are burning for some reason, but 1 in 1350 is pretty good odds for guessing😉
Was going to say the same as Sad Panda, most likely mixed scrap from USA melted down in china and cast as weights(not important just gotta weigh somewhere near the right amount)
Was thinking about saying something before about the chrome plating but kept my mouth shut, you know what you're getting into.
And Welcome to the world of machining cast iron, it flies everywhere and gets into everything, might want to check actually where, when you finish this job, recheck your DRO, slides, bearings etc, also best not to use air to clean it out, it just blows it in further from my experience.
Cheers from Aust.

[supatipannobhagavato]

You can find cast iron stock by searching for "ขายเหล็กหล่อ". One of the most common grey cast iron sold here should be JIS FC200 (or FC20 for old designation). Most metal stock sold in Thailand follow JIS as there is a lot of Japanese firm operating factory here. Luckily there is many suppliers with store front operating in my area so it is relatively easy for me to buy.

[pablodiablo]

I tried this on my lathe and there was some serious hard crust on the plate, ended up hitting it with my angle grinder first haha

[Rustinox]

Well, your future rotary table decided to put up a fight.

[EC-USA]

Machining cast iron is horrible. When machining car brake rotors on a brake lathe, I can only ever get a 0.010" cut depth.

A steel shaft is definitely more common. If you were trying to machine the shaft, then truck rear solid axle shafts have a nice hard alloy.

[jojojenkins]

I may be seeing things but you appear to have a f*ck ton of slop in your carriage and/or tool rest. That could explain a lot of the broken inserts.

[pink_love_cat]

I resharpen my inserts with a small hand held multi tool and grinding head

[RB-yqqv]

Hi. I am also of the opinion that it's a alloy cast you have. Have you tried the scrap yard for some old weights or they may have some cast material that is much easier to tool.

[josephf]

Why did you choose cast iron for this project? I’m trying to learn which metals are suitable which projects. Material science is one of my weak spots.

[antonellomadaffari]

Geniale! !!! C'è sempre da imparare da te...👏👏👏

[trollforge]

I had the same problems making a chuck backing plate from a free-weight... one of my viewers suggested that it is not cast but sintered scrap iron...

[TheUncleRuckus]

I'm not sure that is pure cast iron, there might be another alloy mixed in with it as it seems awfully hard. Should hold up nicely though once you get it all machined. 👍👍

[TigerCarpenter]

How did you know how much to turn the chuck to index it