Difficult to say, depends on location, quantities and many other factors, but I would say below 200$.
I had a batch of 50 of the previous (v4) design assembled in China (by PCBAstore.com) and was able to sell the kits (including machined heatsink, fasteners and a laser-cut case) for £88. The assembled PCB came in at £49.50. This was selling at cost.
I haven't looked at the BoM of this new version, and my order was prior to the chip famine.
Don't think so regarding the worms. It uses the Simple Open Source Ethercat Slave code
github.com/OpenEtherCATsociety/SOES
There are no licensed tools used, all open source.
And I guess it is enough that it works as an ethercat slave, you don't need to certify it.
And one thing doesn't need to exclude the other. Just saying that it can be done if one chose to.
If you just make it for yourself, I dont think there is an issue. The moment you sell something ethercat related you made, you have to certify it (very sinplified and there are exeptions). As long as you are considered as an end user, you should be good.
I have to say, an open source cia402 drive would be really cool.
Yes. Unfortunetly you can not compare the prices the last years. Also the stms were really expensive... But I am happy so far. I have 24 IRAMs in total in my stock. So I will try to build the old design in the future.
