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| Aluminium CNC build (TEP mill converted) by Craynerd |
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| Brass_Machine:
Hi Chris... I am going to go out on a limb and suggest it is the TB6560. I had one for my CNC... That just isn't a good board. I even supposedly had one of the "good" ones. I had problem after problem. Some left me scratching my head... kinda like what is going one with you. I bit the bullet and got a C10 breakout board with some real drivers. what a world of difference! I hear even more so with some of the more expensive stuff like the geckos. Eric |
| raynerd:
Eric, I think you are very much right here in that the TB6560 is terrible. I have another question and this might be stupid but what would something like this BOB - give me over this LPT quick connect: http://www.routoutcnc.com/lptcon.html I have 3 x m452 drivers that I could borrow from other things in my workshop and I also have the LPT quick connect above. I have a 24v supply and also a 5 v supply. I believe the m452 like Arc Euro sell are opto-isolated inside the driver themselfs... so actually what is a BOB giving me extra other than perhaps a pull up resistor for inputs and maybe a relay for the spindle. Could I actually get my three drivers going with the LPT quick connect ?? Can anyone see any problems with this..... sorry if this is a dumb question. I`m just struggling to see what a BOB actually does for £50, above what my quick connect does (I have the quick connect for a project I attempted about 3 years ago and it is sat on a shelf doing nothing). Chris |
| Rob.Wilson:
Hi Chris I am using this BOB ,,,,,,,,,,, only a few quid more http://www.zappautomation.co.uk/zp5aint-p-499.html?cPath=143 ,,,,,,, you get a true High /Low signal on the PP pins and a few other things ,,,,,, fink thats right :palm: http://www.ebay.co.uk/itm/CNC-5-Axis-Breakout-interface-Board-for-Stepper-Motor-Driver-Mill-/260948751632?pt=UK_BOI_Industrial_Automation_Control_ET&hash=item3cc1c1f510#ht_2763wt_1110 a few quid cheaper Rob |
| raynerd:
Hi Rob, thanks for the link. I`ll make a decision tonight and get one ordered! Another question for you cncer`s! I`m questioning my wiring of my stepper motors: http://www.sanyo-denki.com/Data/Servo/catalogs/F2.pdf page 53 of PDF pages but p52 at the bottom of the document page under bipolar winding. The colours represent my colours red, orange, blue and yellow. In terms of colours and A-, A+, B-, B+ - how would you guys be wiring it? Chris |
| David Jupp:
I would arbitrarily assign one coil to be A, say Orange and Blue wires - the other coil must therefore be B. I don't thik it actually matters too much what you do after that (though good to be consistent across all drives). I would take say the first row from the excitation order table and assign +/- based on that -> Orange A+, Blue A-, Yellow B +, Red B-. If direction of rotaion is wrong, either change the sense of your direction control output, or swap the +/- connection on one phase only. |
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