When I was dishwasher shopping last, this feature alone cost almost $200. As in I could get exactly the same dish washer with exactly same features, other than the auto open, and pay $200 less.
Buy the cheaper one, get the extra part - probably a movable door latch, at least that is how my mother's Miele does this - and build it in the device yourself. You may have to add something to actually make the thing move since the firmware in the controller probably does not have this function enabled on down-specced versions [1] either by changing the firmware or by adding a simple circuit (hooked up to that beeper...) which actives the moving latch at the right moment.
[1] ...like our Bosch washing machine which clearly has the display and touch buttons for more precise program options (custom temperatures etc.) but does not enable these by means of a different piece of firmware. There will be a day when I'm bored enough to hack the thing to do my bidding...
In the time it would take to procure all necessary parts and tools, and perform the labor, most people could've earned enough wage to just pony up the $200 for a streamlined solution.
Not to mention avoiding the risk of voiding the warranty on a brand new appliance, or a house fire by mucking about with electricity in a device that also has water shooting around in it.
By all means though, to all the tinkerers out there, knock yourselves out...
> a house fire by mucking about with electricity in a device that also has water shooting around in it.
If a corporation can do it properly, there is no reason to assume OP cannot. It is a little over the top to insist their house will catch fire just because they added a latch to a dishwasher (on the outside of the shell, which is what contains the water).
Because corporations have giant amounts of resources under their control, and are able to spend hundreds of millions to create something large like Disneyland. I don't know about you, but the resources I have access to don't have anywhere near that level of money.
This is not about Disneyland, it is about a single dishwasher. I don't see how the scope is insurmountable for a single person when that is the subject.
What water pump and heater do you use? do you just grab some lame thing off the shelf that's the same as existing machines (at which point, what's the point of building your own if it's just going to be the same), or do you spec out expensive custom hardware with a custom motor that has bespoke winding arrangement that manages to accomplish what you set out to do? and an induction heater that's exactly right for the expected water for? And then, what do the panels and buttons look like? Is it a Janky looking electrician's special with protruding wires and buttons that aren't suitable outside of industrial use, or do you injection mold buttons that are right?
Okay, fine, none of that adds up to Disneyland money, but we're still talking some 6-figures for this project that may never be recouped. Maybe that's an amount of money that you're able to swallow without a corporation's help. Seems a lot easier with help though.
I have to say, very likely overpriced, but worth every cent.
Right now I need to set an alarm to go open the door when the dishwasher is hot to avoid it cooling down and then taking forever to dry. With the auto-open you never forget, are never busy (you can start it at night and it is dry in the morning) and don't need to be distracted from what you are doing.
I can't say for sure which dishwasher I have since it came with the house, but knowing the previous owner it's from IKEA and one of the cheaper models.
I can totally see manufacturers try and segment the market with a convenience function like this though.
[1] ...like our Bosch washing machine which clearly has the display and touch buttons for more precise program options (custom temperatures etc.) but does not enable these by means of a different piece of firmware. There will be a day when I'm bored enough to hack the thing to do my bidding...