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I was putting a flat on my belt steppers when I noticed one of the pulleys had split. I have not had my Rostock running yet. So this pulley has only had normal belt tensioning load put on it. Now I'm concerned that this will happen when I do get it running? Should I order replacement plastic, or are there metal ones available?
[img]https://sphotos-b.xx.fbcdn.net/hphotos- ... 6100_n.jpg[/img][img]https://sphotos-b.xx.fbcdn.net/hphotos- ... 2272_n.jpg[/img]

I'd reach out to seemecnc and get a replacement on the way, I think you just found a manufacturing defect. That plastic is pretty stout and shouldn't split easily at all. You're far more likely to grind the teeth off of a belt than you are to break the plastic...

There are metal pulleys available, but a printer shouldn't put a high load on them so there's no need.

Thanks, I will reach out to them. I did find aluminum ones on Ultimachines site for $11per. I'll see what Seeme says.
https://ultimachine.com/content/timing- ... 2-20-tooth

Batteau62 wrote:Thanks, I will reach out to them. I did find aluminum ones on Ultimachines site for $11per. I'll see what Seeme says.
https://ultimachine.com/content/timing- ... 2-20-tooth

I have well over 100 hours on the exact same pulley, I would wait for the free option. You got a bad one.

SeeMeCNC has already replied to my email. They are sending me a new set. Now that's product support with a big dollop of customer service on the side!

well it was the right thing to do, you got a bad product. any respectable company should replace bad manufactured parts If they want to stay in business and have a good reputation.

I have the same problem, made a quick fix turned down the hub put rubberband around the pully and superglue'd it, will do for now

I had the same issue, one was split upon receipt and got a replacement set very quickly. So far I have been giddy with how well their service has been for everything.

I put it all together anyways curious how badly the split would affect it, and it made a significant difference in the action of the cheapskate. Not up and running yet (RAMBO didn't start 100% to guide and I haven't had time to bother with it since) so I can't attest to how it would affect prints, although it would seem to be significant if something as little as slight resistence in an arm can affect prints.

I had the same thing happen to me.

Hm I mailed John at SeeMee CNC about this but still no reply, luckely i orderd a spare set of belt and pully last week from UK got it today, allso got two J-Head MK-V HotEnd 0.4mm Nozzle from China

You're not going to want to hear it but I'll warn you that a lot of the JHead copies are basically unusable, because they don't follow the schematic for critical dimensions like nozzle length, Reifsneider did a piece on his blog comparing them to his originals.

http://jheadnozzle.blogspot.com/2012/12 ... lones.html

Yes well i reed that, how ever the two I've got looks' slightly different so time will tell