Help identifying connector for Tevo bed cable

martinv

Hi everyone,

My Google-Fu is failing me. Does anyone have an idea of what connector this is in the photo? My measurement of the pitch is 5.9mm (difficult to measure exactly as it's only 2-way).

For the whole story, I have a Tevo Little Monster delta where I have lengthened the rails. So now I have to lengthen all the cables. For the (mains powered) bed I'd rather build a complete new power cable rather than splice the old one. I could change to a different connector and be done with it, but Ideally I'll keep the original as I have a number of these printers and I'd like the possibility of easily swapping the beds.

droftarts

@martinv It looks like Molex Mini-Fit Jr, eg https://www.molex.com/en-us/products/part-detail/39014021, but that only has a pitch of 4.2mm.

Ian

martinv

@droftarts

I measured the pitch again today and get 6.1mm, so maybe it's actually a 6mm pitch. A bit unusual. Notice also the half rounded housing keying. After much searching I've found that the rounded keying is unusual; most keyed connectors seem to use 45 degree angles.

Here's another photo; having real trouble taking a nice shot alas. I'll have a look on Digikey for 6mm pitch housings...

Another thing I could do is instead of making a complete new cable, or splicing the old one with some nasty solder joint would be to use the cable I have to make a short adapter to a new (and importantly, obtainable) connector. Kind of like...

heat bed--->X X<---->known male/known female<------- ... 2m to power supply end.

martinv

@martinv

Ahh rats, I think I found it on Digikey. 6.2mm pitch apparently. Unfortunately it seems to be obsolete.

Molex part 351-43-0201

droftarts

@martinv Good find! Though it unfortunately looks like you're going to have to replace it, I can't find any for sale either. Make sure you get something capable of carrying the heated bed current. Unfortunately I don't have any recommendations.

Ian

martinv

@droftarts

As alternatives, and for which I'll use to make an adapter cable, I found these:

https://www.aliexpress.com/item/1005004265820177.html

They are described as 63080 with 6.3mm pitch. This seems, maybe to be something like a Molex Minifit. Maybe. Who knows with Ali Express. I'll have a close look at it when it arrives. I suspect it will be OK for voltage (230V here) and current (surely at most 2A for the TLM heater).

I would have ordered something nice from Digikey, but in the past I have spent a lot of time and almost lost my sanity trying to find housings, both male and female, and terminals to suit the wire gauge, all which fit together properly and for which I have a crimp tool. The Ali Express store RiccoDi seem to have lots of "sets" including male, female, and terminals which really helps with the headache.

This is the last piece of the puzzle for the printer conversion to 1.5m rails. I really hope it works and produces some at least half way decent prints.

martinv

@droftarts the parts arrived in due course and here is the made up adapter cable. I'm happy with it.

Note to all, this cable carries mains voltage and should be tucked out of the way and safely covered where you cannot touch it. This photo is with the cover removed for photo purposes.