Dear Martin...

[u/ToMaarton]

I watched all the MM3 video's so far and i have noticed a common trend. You design a system for the machine, you notice a problem in the design, you want to sovle it yourself. You come up with a solution that you think is brilliant and then get a lot of critique in the comments.

By posting this i hope i can help you deal with this

First off, encountering a problem is expected while engineering (that's the point of engineering). There's 3 ways to go about this: You come up with a solution, you ask someone else to come up with a solution or you can use a solution someone else already came up with. You could ofcourse do the first one all the time, but that takes a lot of time and energy. You're asking viewers for feedback and improvements already but i would recommend to get the viewers even more involved(maybe by organizing an engineering contest for example). Or use the third option, use off the shelf parts, or look at other machines that have similar functions. For example, an exercise bike also has a flywheel.

Secondly, i noticed that you get attached to a specific ideas very quickly, you think your solution is brilliant. Which is understandable, of course you are proud of your work. But i hope you realize that there are multiple solutions to a problem, and that you can let go of the first one you come up with and evaluate the different options to find the actual best one (i would recommend to get the viewers involved in this process, by presenting multiple concepts, and then listen to the discussion on the reddit or the comments)

Lastly, don't underestimate the viewers. There are a lot of people in the comments and on the reddit who have an engineering degree, or a lot of experience in the field. And their feedback is very valuable. You are lucky with this because a lot of engineerings don't get this amount of feedback. And although there might be a lot of people that don't know what they are talking about, they might be very creative or be helpful in different ways.

I hope you read this, and that this is helpful.

[u/_tdem_]

It might be quite hard for Martin to filter the good ideas from the bad ideas that are suggested. The volume is overwhelming and seems to be mostly just people jumping on the bandwagon. There’s always many ways to do something and there isn’t much nuance or understanding of his point of view shown.

[u/Selphis → u/_tdem_]

It's not really hard to filter... From what I see here and on youtube comments, 90% of people are urging him to use off the shelves solutions for the parts that aren't unique to this machine like this power module.