I’ve built, used and still use a number of 2D/3D machines over the last decade or so – printers, laser engravers and mechanical cutters. None of these have been critical to my livelihood, but all have been fun to build and operate. None has ever come close to the level of company support that Carbide 3D has provided – especially at this price point. I work in an IT department and we pride ourselves on supporting our users – but we’re not there.
There are definite pros and cons to providing a complete solution like my current 5Pro and VFD spindle. Designing, building and maintaining everything from the CAD/CAM software, electronics and electrical, mechanics and tooling – plus the extensive training/tutorials – leaves a LOT to support. That only gets worse as the legacy support needs grow with time and as the type of user expands with the type of machine marketed. There is a pyramid growing at both ends.
This is my opinion only:
The mechanical design and parts used are generally excellent, and if well-maintained the machine should last a lifetime. You already go a long way by providing maintenance parts kits. I’d also like to see an honest list based on frequency of support requests for the screws that tend to work loose and the parts that will wear out regardless of maintenance (but quicker if not maintained). Ideally provide it along with the symptoms and signs if they loosen or wear. A self-support list (or wiki) for these common things may save a significant numbers of calls. We (as forum users) may even be able to help.
The software and software maintenance are exceptional. Ditto for the tutorials. It really doesn’t leave a lot of space for improvement.
The electricals and electronics are by far your weakest area.
From what we get to see on the forum, they represent a frequent (and expensive) source of service calls. Many are avoidable.
I don’t expect to buy a $5000 package and have loose wires bundled with a few twists of adhesive tape, extensions 4 feet long for the 2 feet model, need gender changing pigtails for the VFD cable, have unlabeled connectors for the BitSetter/BitZero, etc. And Micro-Fit crimped connector pins aren’t meant to carry heavy cable weights.
My first connector problem came with the machine’s arrival. It was fixed by replacing the attached Y1 limit switch (no connector attached, just 3 bare wires) with the provided spare – without needing to place a service call. This was just poor QA. It happens. Providing the spare saved you a call. Kudos!
My only support request was around 6 months into use. It was for a wire gradually pulling out of a badly crimped Molex connector pin on the switch connector to the controller, aided by the weight of the harness. Carbide provided a rapid replacement (entire wiring harness) - helped by knowing the problem and my sending the supporting information and pictures along with the service request email. It also prompted me to expand my own toolkit with Mini-Pin and Micro-Pin connectors, pins and a good crimping tool – just in case.
These kinds of details should have been ironed out in development. Expandable cable covering is cheap and protective. Cable support to take cable weight off the crimped connectors is a lot cheaper than tying up service reps and replacing cable harnesses and attached drag chains.
All of us on the forum see the problems with the electronics – with the posts on the forum concerning a variety of control boards including the Warthog, the VFD controller and the front panel board. From my viewpoint, they go a lot deeper than the acknowledged assembly problems. Here are just a few examples.
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Rather than marking the heatsink as “Hot” on the Warthog (and it certainly is very hot), fix the underlying problem. My other controllers’ 4 x TMC2160 drivers run similar motors at 24V and the same currents with significantly smaller heatsinks and all run below 45C. Heat and heat cycles are the enemy of electronics reliability.
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Unless the aim is to deliberately lock out use of 3rd party VFDs and spindles, fix the spindle output circuit on the Warthog to not need a workaround on the VFD board (and to reduce its complexity and likelihood of failure).
Fixing these (and other) design problems would potentially free up your service reps and cut down on the shipping of expensive replacement parts. I’m sure there are many of us here who would willingly volunteer to help with suggestions.