Centroid is pretty popular, has been around for 30+ years. If you can't find a Centroid Post Processor Use Fanuc 0T http://www.cncsnw.com/PostProcessorsLathe.htm Marc Leonard (cncsnw) has been around

Chris, the benefit of updating to a modern control will be the ease of which you are able to interact with the user interface. The ability to load your parts via USB thumbdrive, and better G code comp

WHERE ARE YOU LOCATED?

You can "ASSEMBLE" an RS485 card? You can buy RS485 cards..... RS485 is a serial protocol standard. However, I believe there is firmware on the card specific to the Emco. Have you ever proven your car

Chris, post either the Ebay item number or a link to the machine. These guys can tell you more, but $1700 for a machine you can't see running seems awfully stiff for me. The fact that it doesn't have

This fellow has never posted before clpe-ru@... Still could be legitimate. But maybe not. Marty

Where are you located and post pictures of your card. Folks, be sure you don't get caught in a scam....I hate to mention it, but buyer beware. Marty

They are good machines, but without the computer and the Emco board that goes in the computer and the software, you are stuck. You may have to do a control retrofit on it. Marty

Good you have done the basic bench test and have Acorn communicating with the PC Since this is the Emco-CNC-Users group, not Centroid Acorn specific,PLEASE go to the Centroid Acorn User Forums and pos

I don't think it will last but it will work with Acorn provided you connect it correctly and belt it to the spindle at 1:1 with a timing belt

https://www.ebay.co.uk/itm/1x-OMRON-1000P-Incremental-Rotary-Encoder-1000p-r-E6B2-CWZ1X-Differential-Signal/323528197269 Its a Chinese knock off of an Omron encoder

You need to follow the minimum software requirements: https://www.centroidcnc.com/cnc_pc_performance_requirements.html SOme have used Windows 7 but Centroid will not support it nor answer any question

You must have a power supply to drive the axis motors (read the manual on the stepper driver to see what range the motors work in). The power supply that comes with Acorn is enough for logic power to

You need stepper drivers. I think you should replace the origins stepper motors but that is me Videos: https://www.youtube.com/playlist?list=PLTOPaz9Cz3ldpY_9CbgpMkj2Xlq-9Qbkh

You can always add the encoder later when you need to do threading or tapping....

Cheaper encoders do not have the bearing support to handle the load from the pulley and belt. They are meant to couple to a jackshaft with a coupler, that support the pulley on either side with bearin

Retrofit is not inexpensive if you want to do it right.... I provided a bill of materials on the link I sent. You can certainly do something else. If you want peck rigid tapping, good internal and ext

Link I sent has a build list with parts and sources

NO. Must be a standard line driver/differential 5VDC encoder. See the link I sent earlier. Acorn uses real encoders for accurate threading and tapping. 1000ppr is fine for the spindle

https://centroidcncforum.com/viewtopic.php?p=41794#p41794