Art, I profile mill and bore holes in most of the parts I make. The bored hole locations are critical. I aways have some small amount of nut backlash. Instead...
I'd actually like the reverse! On my machine, moves with G0 seem to have zero measurable backlash, whereas G1/2/3 moves have some measurable backlash.. --C.S....
I can't seem to get my Geckos up and running and I've looked for the reason for several days now. I have my CNC machine up and running using another board so I...
Not sure I understand the "????", Jan, but I'll try to clarify what I
wrote.
The "ground" or "-" of the 5VDC supply should NOT be commoned with the
ground or...
In a message dated 1/2/2006 3:46:19 P.M. Central Standard Time, awander@... writes: The "ground" or "-" of the 5VDC supply should NOT be commoned with...
Matt, One thing to keep in mind. The return from the 5 volts needs to be at the same ground as the output for the step and direction signals. Bob Campbell Bob...
I know what you mean; I had the choice between socks / aftershave or an 8-day cruise. Tough choice, I really had to think about it.:-) Finally got back at noon...
Hi Jim: Cant be done. The Backlash is a driver function and pretty unfriendly. I hope to remove it this year and replace it with a complete overhaul. As soon...
Dear Sir, my gerber sabre 408 router machine 3pc servo driver not working, can i buy your gecko 340 servo drive card to replace(the servo motor is dc 58v 8.1A...
... I'm not sure what you are referring to. I have a board that adapts a Gecko 320 or 340 to my step pulse generator board. With that board there is no need ...
Hi Jon, Aren't you being just a bit impolite here, this is not the first time that you use the Geckodrive forum to plug your own products! Statements like "I ...
This is a mirrored post from the CAD/CAM/DRO/EDM list but thought I'd post it here...Sorry if your on both lists.. Well now that the holidays are over.. time...
... Sorry - I failed to see that the message I replied to was posted through group! I had no intention of posting such a reply to the group, please accept my ...
... You don't need to worry about the ESR when using a rectified mains (it's more an issue for SMPS design). The ripple current rating seems sufficient for...
SJH, thanks for the reply, I had asked Mariss earlier what a person should use to spec the power supply. There was some discrepency as to round or square motor...
... The difference in performance between 20x and 15x the supply voltage may not be all that great, especially with Geckos. With other drives, it might be....
Ok to add to the confusion, I went to Plitron's website to get some spec's. On their site for calculating the power change thru the rectifier [to spec a toriod...
... The above formulae seem correct, although the 0.8 should in theory be sqrt(1/2) = 0.707. The '+2' fudge factor accounts for the rectifier diode drop (if...
In another forum it was commented that any stepper is physically limited to 1/4 step accuracy due to the way a stepper's rotor is designed. So is this true...
It is actually worse than that. Depending on load a stepper can only be relied on to be within +/- 0.5 step. However on low loads they are considerably closer...
I disagree. Static microstep accuracy depends on good motor linearity and a drive that generates accurate sine and cosine phase currents. Unloaded accuracy...
Hi All, There has been some discussion regarding the requirements for driving Gecko's, ACT Logic is not stocked by anybody here and I was wondering if an op...
... an ... will ... require ... Hi Greg, I have had success with a simple transistor like the BC547 to drive the Gecko Opto-isolator. (one for step and one for...
All has been fine with my RF-45 conversion until the other day. X started to fault when using MIDI to enter G0 code. Now the Z axis is doing the same thing....
My own experience with the G210 at 10x microstepping feeding a leadscrew 1rev = 0.00075mm (Siex X2 stock metric) with a 1um dial this setup can easily tick...
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