A follow-up to how cheap they can make a sewing machine:
Okay, but,
How expensive can they make a sewing machine?
So, if we start out with a "cheap" machine, what happens when we go up in price.
Welcome to the Brother CS4000. It's a computerized machine and usually runs at like $130 right now. It does all kinds of cool things! The only thing that it doesn't do is last very long.
Well, here's what happens if you take it apart and take out all the circuit boards:
No, there's no missing central component.
If you've never taken a sewing machine apart, this might not look wrong, so let me explain.
This is a Singer Izek, and the same machine with the plastic outer casing removed. Inside, there's a metal frame that all the components are attached to.
See, most modern sewing machines are plastic on the outside, but the plastic is just a cover. The insides have a frame, and the mechanism can function without the shell at all.
That Brother up there doesn't have a frame at all. Everything that should bolt to the frame is just attached to the plastic housing. This is a problem for a lot of reasons. Notably, if the machine is being held up by flexible plastic, then there's no way for the machine to be consistent and precise. Also, the plastic shell serves as a protection, like a bike helmet for your sewing machine. When the components are attached to the outside, your machine becomes very fragile, because hitting or tapping the outside of the machine is the same as hitting or tapping the inside. This is why we don't allow newborn babies to ride bicycles, btw.
Even in a metal-frame machine, there's going to be plastic parts. Putting plastic parts in a sewing machine makes it quieter, more portable, and cuts down on maintenance. People don't fucking do the maintenance anyway, so finding ways to reduce it is going to help the machine run well longer.
Unfortunately, most machines are sold in boxes, where the person selecting the machine has to make a choice by reading the outside of the box. This means things like "This machine has 4672 stitches!" looks good and "this machine has 12 stitches but its brain is not basically exposed to the elements," doesn't. Any description of superiority that requires a human to explain it instead of a catchy tagline just isn't going to sell.
So, when you're looking at the Brother CS 4000 and the Baby Lock Zest, they're about the same price. The Zest has like 12(?)ish stitches, half of which are double-action (the same stitch but it goes forwardbacky instead of just forward) and no width control, and the CS 4000 has more technology in it than we took on the first manned trip to the moon, you might ask why they're the same price. Well, in the Zest, they cut down the features like easy bobbin setting, number of stitches, complexity of internal cams, and other features that you get in higher end machines.
In the CS 4000, they just got rid of...you know...the insides. The. The important parts. Imagine a car where there's no chassis and they just glued the engine to the underside of your hood.
Not all plastic machines are the same.
Anyhow, since I'm possibly unique in the world of budget lolita sewing blogs to be able to make a post about the most expensive sewing machines possible, I'm willing to try to undertake that expedition. Stay posted.