I agree. I’m not saying they are making GOOD decisions, just that many if them already have - and others will continue to make - that particular decision. Having a board they can pop in with drivers that will run them just makes them an extra market.
I think careless is probably a good way to describe it. Ignorant in the technical sense, not the insulting/pejorative sense. Just not really actually understanding the trade-offs etc.
My one caution would be that the peak specs on those drivers may not actually be achievable. It’s quite common to see parts specced for their peak performance at 25degC junction temperature, when in reality that’s not actually achievable. It’s not a ‘lie’ as such, it’s just that it’s a convenient condition to use to compare different devices, especially when the application is so different. We use power modules at work that are rated to do ~1000A continuous current at an external case temperature of 25degC. 1000A is 10kW of loss. The module is rated at 150 degree junction temperature and getting 10kW out of it while keeping the case at 25 degrees would definitely need chilled coolant if you’re optimistic and liquid nitrogen if you’re pessimistic… But it’s not actually saying that you can use the module at 1000A continuous, it’s saying that the limitation to your usage of the module is application dependent and based on your cooling. I’ll take a look later today and see if I can figure out how ‘real’ those specs are on the TMC510.
I guess it’s understandable in a way because often it seems cheaper to overspec and overbuild then not have to re-buy anything, but I think in many cases it’s not actually cheaper or even better.
That is all too true. Youtube said this is the way!! Hell i may be guilty of it myself. As youtube is my major teacher!!
Wonder if we could ever pull off a V1 convention? All of us get together and start chatting!! That newtech video really got me going. Seeing what he did with that plywood and seperating and joining esp32 and external drivers, etc.
That seems too low a price for the board. You have a business to run, and you provide outstanding support for your products and to your customers and community.
I have tipped in the past, and will continue to do so when I place orders in the future. Everything in the v1e shop is priced very reasonably and I want to continue to encourage the way Ryan runs his business and supports the community.
There are a lot of old rules of thumb that aren’t keeping up with the advanced 3D printing has brought. Nema 23 and TB drivers used to be the best. But people also only wanted huge spindles and concrete bases and huge gantries. And building it yourself would cost $2000.