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I should have mentioned that you have to find another way to reverse the axis direction. Simplest way is to change the "Direction" signal from active-high to active-low (or vice versa) when you change the step polarity.Quote:
Originally Posted by neilricketts
hi my stepper drivers are these http://www.ebay.co.uk/itm/CNC-Single...EAAOSwnH1WXWIT the two led clearly state pwr/alrm
Cheers Neil
I've literally these last 10 minutes just come in from the shed from dismantling two of these which were not working correctly (new design, first time I've tried these). From the outset, though they are called TB6600 - they certainly don't have a Toshiba TB6600 on board - instead, some surface mount QFP device with a splodge of heat-sink compound with a best-hope bonding to the heatsink. Also, the alarm alternates for every received clock signal - it's not a fault, but it's a poo design.
I actually came to this site on the offchance someone was selling some drivers, failing that I'm online to get something a bit more respectable.
hi doddy i am glad someone else is having the alarm light flickering on and off. I am in the market for some better drivers at a reasonable price. I am considering these if i can find someone who has used them.
http://cgi.ebay.co.uk/ws/eBayISAPI.d...e&talgo=origal
http://www.ebay.co.uk/itm/2625479434...%3AMEBIDX%3AIT
Would you let me know what you decide to go with.
Cheers Neil
Doddy As you know its hard to beat the AM882 drivesQuote:
I actually came to this site on the offchance someone was selling some drivers, failing that I'm online to get something a bit more respectable.
...or to find them in the UK.Quote:
Originally Posted by Clive S
Gnngh!, I've spent the last week and then some crafting two folded steel sleds (one power, one control) that fit in the mount-frame of a Starmill... now anything larger than the original drivers isn't going to fit and I'm back to the start, making a tray to take all the gubbins.
Time to go find a cat to kick.
Hi does anyone know of good supplier of shielded 2 or 4 core cable.
Cheers Neil
Search for 1mm or 0.75mm cy4 cable like https://quickbit.co.uk/Cable/CY-Cabl...-0-75mm-4-core or https://www.cse-distributors.co.uk/a...Y_4C_0_75.htmlQuote:
Originally Posted by neilricketts
edit only connect the screen at one end to a star point
hi clive s thankyou for the links i will order some first thing monday. Just wondering has anyone any experience with these stepper drivers
http://www.ebay.co.uk/itm/CNC-Single...3D251425126351
Cheers Neil
As I have said before you need to up the voltage on the power supply. I would do that first. Those drives you linked to are 50V drives so you should be able to run them at at 40VQuote:
Originally Posted by neilricketts