2017-4-3 · Thsi is how i do retrofits: Have a detailed look at the machine- do nothing just think how and what should be done- have another more detailed look as now i have an idea how it should be done so i have to check if all that is OK- do more thinking- odrer stuff- have another look as now i have at least 2 weeks to wire and program everything in my head only- get the parts and start the actual ...