Found an exploit.
You can line up the first 2 cubes against the button that drops the laser cube to jump up to the platform that has the laser cube.

best mono portal map oat in my opinion

What a fun setup! I was surprised by the number of chains. I can't help but wonder what that cube sitting in its own room in a trigger is doing, haha.

Awesome puzzle! Took me a while to remember the sendificator mechanics, and then a lot of F6/F7 to minimize alignments, and a TON of thought to figure out what to do. After watching the video I realized that I had spent excess time by not stacking the cubes, but sendificating them individually . Overall, one of the most rewarding screenshots for me thus far: Success!!! . Much fun, thanks as always.

Very interesting concept fumbly, glad I knew what I was doing (ish) fairly early on :)

https://www.youtube.com/watch?v=C0jHlghhRo0&t=9117s

I also encountered the bug bullfrog mentioned. Can it have to do with he laser bug? I mean, it's a laser cube that is sent with a laser, maybe for a short time the bug applies, so the other cubes stay in mid air.
In terms of the whole map... it's not my cup of tea. The idea is nice and the title matches perfectly. If you know the sendificator (I do), you basically know what to do. But all the different moves plus alignment problems plus mediocre visibility plus the fragility (I used A LOT of F6/F7)...make it not slightly but massively tedious imo. I think I did some steps differently than in the walkthrough, not easier, just some other way around. I don't have the motivation to check this in particular :-/
With almost 50 more or less clueless minutes it's a medium-hard for me.

excellent map

Honestly this would have been a lot harder if I didn't know about sendificators and ghost cubes

Creative! I had never seen that mechanic before, although to be fair I'm not very familiar with the sendificator to begin with. The solution here is definitely quite clever and takes some thought. Overall a highly interesting puzzle, thumbs way up!

Unless I'm doing it the wrong way, "I had no noticeable alignment problems" either :)

Nice map Fumbly! I don't mind the repetition because the logic is cool

I had no noticeable alignment problems but I did try to be precise, especially when placing the laser cube. Seeing what was going on in the basement was limited for me also. A great Ah-Ha moment for me when I figured out one of the steps the vertical stack Really enjoyed it overall. Cheers.

Nice map! (A bit more back-and-forth than I would have liked, but that's fine.)

Brilliant map. I can see why people may have found some moves repetitive or finicky, but I really enjoyed figuring it out. Faved!

really smooth and fun sendificator map great work :)

I seem to agree with everyone else: great concept, good look but running half blind with a rather finicky mechanic was a bit tedious. I too used noclip to check, realign cubes. Still

Excellent puzzle and, as far as I know, quite unique – definite thumbs up. Something really odd happened, but I couldn’t seem to repeat it.

Blind run part 1: https://www.youtube.com/watch?v=nuBPrU8PJ8s
Blind run part 2: https://www.youtube.com/watch?v=EGA14doKB6k

Very fun map! I do enjoy the cubes creeping . One major con I would say is getting that laser cube to aim just right plus the physics of the cube to behave just right is a bit annoying on my part . But this one of the toughest sendificator puzzle I have ever played. :)

Solution: https://youtu.be/QL5JGgp_i6A

i did alot of running up and down until i figured out the cube placements on the sendificator. great use of all the mechanics.

Cool map. Some of the laser alignments were a bit annoying, but I don't think I've ever seen so much logic squeezed out of a sendificator before. Well done!

Interesting map. I found it a bit finicky to execute due to laser misalignments but I don't mind noclipping to set some cubes straight all that much. The concept was quite unique, I also don't recall seeing it anywhere before. I like it and look forward to seeing it being used in more places, especially if it is done like in this map, where it forces additional logic and not just additional moves. Still, I must say that towards the end I found it to have become a little tedious to do the same kind of thing so many times. The layout, albeit quite simple, still confused me for a fair while. Maybe it was because of limit visibility in some places, maybe I'm just tired. Anyway, sorry for my ramblings. I enjoyed the map overall. Thumbs up :]

Big thumbs up. I had some of the same qualms as Narkodes about visibility, and actually making sure the cubes sendificate right without adjusting them with noclip or save/loads was a bit finicky, but this is a fantastic showcase and usage of chain-sending cubes through the sendificator to get a cube onto an otherwise unsendificatorable position . No idea if anyone's made a map about the concept before, but I think I'll be calling the technique the "Centipede Technique" from now on thanks to this map. Favorited for sure.

Great map! In the end I was a bit confused, but overall it went smoothly with a playtime of ~20 minutes. If you want, you can watch my blind run, although I don't believe that I did something unintended. I think there should be a monitor or glass (be careful), so that the player can check if the sendifications worked as intended. It made me nervous and I had to noclip to the target room everytime. I can upload my blind run videos if you're interested.

Very interesting and creative map, and a little tougher than I was expecting. I solved basically as intended with a few extra steps, but all the key concepts were there. Big thumbs up.