View Full Version : Board and Motors package - opinions sought
01-05-2014, 01:10 AM
I would appreciate any comments about the TB6560 board, especially how it would cope with the motors in this kit.
CNC 3rd 4 Axis TB6560 Driver Kit & 425 Oz-in Stepper Motor For Router& Milling | eBay (http://www.ebay.co.uk/itm/CNC-3rd-4-Axis-TB6560-Driver-Kit-425-Oz-in-Stepper-Motor-For-Router-Milling-/191132865786?pt=UK_BOI_Industrial_Automation_Contr ol_ET&hash=item2c806814fa)
I am about to embark on a build, I have the bulk of the materials needed, the rails and ballscrews, but not the electronics.
I have the idea that this board could be a chip fryer. What says anybody ?
The other doubt I have is that this is actually UK stock, and if it is sent to me from China, would HMRC and FedEx want payment ?
01-05-2014, 01:54 AM
Well it's a bit late to say don't even think about it, so here's a few links to help:
In short, they have their place - but a respectable CNC router is not it. The problem is the rated voltage of the TB6560 IC is too low to drive the motors often connected to them well - especially the ones in that kit. Here's why (http://www.mycncuk.com/forums/general-discussion/3861-my-cnc-sessions-now-like-laundry-day.html#post25191). If the motors in the link you've given are the correct torque rating for your machine, then you'd be far better off getting these motors (http://www.cnc4you.co.uk/index.php?route=product/product&path=20_26&product_id=363) as their inductance is lower, so they can be driven at a sensible voltage (75V) and get good performance. Look for individual drivers to match the motors - search on the forum and I expect you'll find more posts about this than words in this post.
01-05-2014, 10:33 AM
It is certainly too late to begin thinking about it, I started that process some time ago. I was looking back through posts about the TB6560 and wondering if the horror stories were the result of overdoing the capabilities of the board (well that's fairly obvious) so I was just wondering if there was any merit in them as they are all over eBay like a rash.
I am getting surer that my credit card will be travelling to MK to see CNC4YOU.
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