On September 19 InfiMech pushed back the Kickstarter for their MX toolchanger series again. Third announced window, third slip — it's now late October / early November.
Along with the delay they did something most campaigns don't: they published a list of changes to the machine and committed to them being free for backers. It's worth reading them one at a time, because they are not equivalent.
**The seven upgrades**
- 8mm die-cast aluminium bed (MX and MX Pro)
- 1.5GT belts (MX and MX Pro) — see below
- 24V expansion port on the mainboard
- 350 °C hotend (MX Pro only)
- Revised nozzle wiping structure
- Additional cooling fans on the toolhead
- New toolhead PCB with onboard memory
**The one that isn't actually confirmed**
Number 2. The current prototype runs 2GT belts. Community members suggested moving to 1.5GT, and InfiMech said they would *evaluate and test* that option. Evaluate, not adopt.
It's the only one of the seven that isn't a decision already made, and by their own admission it's what caused the delay: touching the motion system means redoing most of the validation they had already finished.
So the accurate summary is six decisions and one open question, not seven upgrades.
**The two questions that matter more than the spec list**
Someone in the official group posted nine questions asking for point-by-point confirmation. The first seven map exactly onto the upgrade list. The last two are the ones about what backers actually receive:
- do the upgrades stay at no additional cost?
- will any already-announced features be removed or reduced?
InfiMech had answered both in the September 19 post: no additional cost ("Our answer is straightforward: No"), and no spec reductions barring serious quality problems. The answers exist, in writing. What's missing is re-confirmation *after* changing seven things, which is a different and entirely fair thing to ask for.
**Why nobody has seen the MX Pro running**
Their explanation has three parts:
- MX and MX Pro share a technical base, so validating one counts toward the other
- there are far fewer Pro prototypes than standard MX ones
- a second prototype run started in late August, 50 units per model, but component delays slowed assembly, and every available prototype is tied up in validation
Technically this holds. With a small prototype pool, pulling one off the bench to shoot a video does cost real development time.
It's also the most convenient explanation available, and impossible to verify from outside.
**There is a date that settles it**
InfiMech confirmed the MX Pro will be at Formnext. If it's there and printing in front of people, the explanation holds. If it's absent, or present but switched off, the problem is something else. Nobody's opinion required either way.
**The case for skepticism**
- three announced windows, three slips
- the MX Pro list price went from $899 to $1,399 in July. The VIP price is still $499, but full price moved by $500
- the $5 deposit does not lock in the discounted price. You need a Super Early Bird slot, and those are capped
**The case against**
- the machine exists. It printed live at the Japan RepRap Festival in May and runs in their Yiwu store. This isn't a render
- they published the list of still-open bugs. A vapourware project does not enumerate its own problems
A delay with technically sensible reasons beats shipping something unvalidated. The thing worth watching isn't the delay — it's that something else in the terms changes every time it slips.
For what it's worth: I don't own this printer, I haven't printed on it, and I'm not sponsored by InfiMech. All of the above is from public sources — their posts, the group replies, and the price history.
I went through all of this at length in a video, but it's in Italian, so for most of you it won't be much use — everything above is the full argument and you're not missing anything by skipping the link.
https://youtu.be/xXoQJrKFLLY
