Sumitomo and eBay ground edge parting inserts for small cnc lathe

A viewer asked if ground edge parting inserts exist. At first I did not think so, but then I realised I have been using then since 2005 LOL. This is a quick look at the insert I use and one I found on eBay. These really help a small lathe to part off well as there sharpness and rake is ideal for lathes that are low on power.
A little history of these lathes
Manufactured by Hercus in South Australia, these lathes were sold to many educational facilities and to countries all over the world. They were sold in the USA under the name of Rockford Pro 2000. An industrial version of the PC200 is the Novim, which comes with an industrial enclosure for coolant capture.
The lathes began as a “Computurn” model which used electronics by a company called ANCA. These lathes were stand alone cnc lathes, a small version of what might be found in industry.
These were replaced by lathes which had a Hercus control system and used an interface card in a desktop PC to connect with, and control the lathe.
These lathes used the same castings but their appearance was much changed as they no longer contained all the controls for the lathe. These were now all in the PC, apart from a small Pendant which offered some controls when in Manual mode.
Early PC200 models used a CAD/CAM software that ran in DOS on a PC that had an ISA slot (long discontinued on new PCs) and had analogue electronics. The 8 tool turret option on these lathe was operated by a small motor and gearbox and used shot pins to lock the tool in position.
As PC operating systems were upgraded, Hercus released Windows CAD/CAM software. These machines still ran analogue electronics. The last version of the machine used digital electronics and used 32 bit Windows based CAD/CAM. Both these machines used a turret with a motor and worm and worm wheel drive. Options for all these lathes included a Leader air chuck with no through hole, an air operated collet chuck, a 8 position tool turret, a tailstock, a QC tool post and a coolant pump.

[@KlausMichaelKMS]

I like to use inserts that can be found on eBay when searching for MGGN H01 The work very well on my SC4 that is converted to cnc. I mainly do aluminum and brass, no idea how they would hold up in steel. They are dirt cheap and work very well for my applications.

[@smallcnclathes]

I have not used the inserts you speak of but have used inserts for turning aluminium to turn free cutting steel. Work well in a lathe low on power, don't last that long but as you say they are so cheap it does not matter.

[@machineshopinagarage4699]

Thanks for that Nigel much appreciated 👍 and yes you did answer my question, now I have a better idea which one to get. Cheers Ian

[@smallcnclathes]

Glad I was able to help. Nigel

[@colinmuskett5465]

Excellant video as usual

[@smallcnclathes]

Thanks Colin

[@Festivejelly]

I use ground MGEHR style ones, they are meant for cutting aluminium but they work well for brass and steel, but obv wear down a lot quicker.

[@smallcnclathes]

Hi, thanks for your comment, I thought that was the code for the tool holder rather than the insert.

[@Festivejelly]

Yeah it is my bad the insert is MGMN 200-G AK10 and they fit in the MGEHR tool holders.@@smallcnclathes

[@smallcnclathes]

@@Festivejelly I looked them up and what I found looked much like any other inert but polished rather than coated. Nigel

[@smallcnclathes]

Just released another video where you get a mention. Nigel