#linuxcnc-devel Logs

Jun 27 2018

12:24 PM rene-dev_: skunkworks fully assembled, apart from the hv caps and iram module
12:34 PM skunkworks: hmm - how does one go about that?
12:34 PM skunkworks: You spec the board and what you want populated? (I have never orderd pcb before - let alone populated ones)
12:43 PM rene-dev_: yes, they get gerbers, bom, and a placement file
12:44 PM rene-dev_: and they make the pcb, and source all the parts for you
12:45 PM skunkworks: that seems like cheating
12:45 PM skunkworks: ;_
12:46 PM skunkworks: I forget - will these do brushed?
01:15 PM hazzy-lab: skunkworks: They will do practically any motor known to man :D
02:02 PM rene-dev_: skunkworks yes
02:03 PM rene-dev_: it will even do those wired 2 phase hf spindle motors
02:03 PM Tom_L: what type of control? pwm, analog etc?
02:03 PM rene-dev_: smart serial
02:03 PM Tom_L: work for a spindle control?
02:03 PM Tom_L: or just servos
02:03 PM rene-dev_: yes, Im using it to control the spindle of my haas vf0
02:03 PM Tom_L: nice
02:04 PM Tom_L: pretty straighforward hal interface?
02:04 PM rene-dev_: position mode of async is supported, but a bit experimental
02:04 PM Tom_L: do you have fully assembled boards available?
02:05 PM rene-dev_: yes, just a few lines of hal: https://pastebin.com/u2x3d6Hm
02:05 PM rene-dev_: currently not, but probably soon, when the next batch is delivered
02:06 PM Tom_L: what sort of supply range?
02:06 PM Tom_L: power..
02:06 PM Tom_L: ie will it take mains power direct
02:06 PM rene-dev_: the haas is running on 350v, the brake resistor kicks in st 375v
02:06 PM rene-dev_: yes, powerstage is fully isolated
02:07 PM Tom_L: what sort of motor feedback?
02:08 PM rene-dev_: 2 feedback ports, which support resolvers, encoders with sin/cos interpolation, yaskawa, mitsubishi, sanyo denki, fanuc incremental, fanuc abs, hiperface
02:08 PM rene-dev_: working on endat
02:09 PM Tom_L: nice
02:09 PM Tom_L: i've been hunting for a ~2kw motor solution for my spindle
02:10 PM Tom_L: ~1-2kw
02:10 PM rene-dev_: it will do about 15A continuous, and 20 for a bit
02:10 PM Tom_L: should be plenty for this small mill
02:59 PM skunkworks: rene-dev_: thanks!
04:28 PM skunkworks: rene-dev_: thoughts on this servo for stbl?
04:28 PM rene-dev_: skunkworks what servo?
04:29 PM skunkworks: http://electronicsam.com/images/matsuura/20180627_162606.jpg
05:07 PM skunkworks: rene-dev_: ^
05:09 PM andypugh: Doesn’t that say 60A ?
05:09 PM Tom_L: is that for AC servos or anything?
05:09 PM andypugh: Tom_L: AC servos, brushless motors, AC induction motors.
05:10 PM Tom_itx: https://store.dmm-tech.com/products/dht-0-75kw-ac-servo-motor
05:10 PM Tom_L: something like that work on it?
05:11 PM andypugh: skunkworks: Ah, no, my mistake. Mo 10 Nm / Io 14.5A / 60K temperature rise.
05:16 PM andypugh: Tom_L: I am not sure. DMM use magnetic absolute encoders and I am not sure if STMBL has an interface for it.
05:17 PM andypugh: skunkworks: I think it ought to work, yes.
05:18 PM Tom_L: andypugh have you use DMM stuff in the past?
05:18 PM andypugh: Never, but I looked into them once.
05:19 PM Tom_L: i wonder if their modbus is compatible with lcnc
05:19 PM Tom_L: that's a foreign topic for me
05:21 PM andypugh: I am pretty vague on Modbus too.
05:45 PM skunkworks: andypugh: thanks! what are the odds of geeting a few of the next batch?
05:47 PM andypugh: I think Rene is in the process of placing an order for more than 100 of them.
05:47 PM andypugh: Though how many of those already have their hats and coats on is something I am not sure about.
06:51 PM skunkworks: thanks