2021 POTD Thread Archive

[682bear]

This morning I unwired and removed my 5hp RPC and replaced it with a 7.5hp RPC.

The 5hp was an American Rotary complete RPC... when I decided to upgrade, I bought a 7.5hp Century motor off Craigslist, and just ordered the control panel from American Rotary.



The idler is currently under the chip pan on my 12" Hendey...



I can't believe how much quieter the 7.5 is compared to the 5... but I had the 5hp sitting on a shelf mounted to a wall... the entire wall vibrated when it was running.

I think I'll like this setup better.

-Bear

 

[FOMOGO]

The 5hp probably wasn't balanced as well as your new one. I bought my 5hp used, and the armature shaft was bent, it shook like one of those hippy girls I used to chase, doing the Shimmy. Straightened it out on the press, and replaced the bearings. It was so much better. Mike

 

[Ianagos]

Well I spent a few days leveling my new lathe.
Ended up having to do it twice because the first time I did not rough level it for coolant flow. I just used the level to take the twist out of the bed.

Second time I really got nit picky and tried to make it perfect. I started with a .0005” level then I moved to a .0001” per 10” level to finish it up.

 

[GoceKU]

My day in the shop was spent up to my elbows in dirty diesel oil. This car belongs to my father, is approaching 3/4 million kilometers and it's started to leak oil years ago but its become too much, also it leaves above the inspection pit that i recently built and makes a mess of the covers. Couple of months back i bought parts for it and today is the day to get it done. Started right after work, took the plastics off made me some more room to work, exhaust was easy with the inspection pit under it, put the engine in timing, took off the timing belt, loosen the head bolts, remove the pulley and the engine mount and lifted the head off. It is the originally 29 year old factory head gasket, the valves and other parts look like new, this car has been maintain spectacularly all its life and everything is like new, took a lunch brake then took the head to the big garage and disassemble the valve train, i'll be taking the head to get skimmed tomorrow, the block looks good, but i'll measure it when i clean it.

 

[TIM-RANEY]

This is a new thread that I am starting. We want to know what you made in your shop today. No limits, just tell us what you did.

I am working on a fixture for hand-sharpening machine reamers (<0.75" OD). Not much to show yet. Though I recently finished the restoration of the last two Scherr-Tumico large micrometers of a three (3) piece set: 3-4", 4-5", 5-6". It was an eBay purchase along with a NSK 1-2" mechanical-digital micrometer. The lot was $32....could not pass it up!

 

[DLF]

I made an adapter plate to install the compressor hour meter.

Did not want to drill additional holes, so I made a small mounting plate out of 6mm LDPE sheet. This stuff is a bit difficult to mill clean. Go a bit too fast and you end up with whiskers on the freshly cut edge.

The hour meter is vibration activated and is secured using two M3 threaded inserts.

Sent from my iPhone using Tapatalk

 

[rwm]

Interesting. How reliable is that meter?
Robert

 

[brino]

Interesting. How reliable is that meter?

....and does it remember hours after the battery dies?
(or is it charged by vibration too?)

-brino

 

[Boswell]

Found it Here on Amazon. Says it has a lifetime battery. Then in the fine print it says 2 years of battery so I guess it just means the battery last the lifetime of the battery .
There appear to be other options though that have replaceable batteries or plug in.

 

[Just for fun]

I broke one leg of the 220v to the compressor then added a light bulb and an hour meter. It's easy to tell the the compressor is powered up and also keeps track of the hours.