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Here are the pages from my manual on how to disassemble and re-grease the spindle. Mine is NT40 so a bit bigger and with a different pull stud. But I would think much the same. I've added the page on how to adjust the claws. It's very quick and simple. The whole assembly item 2 is fitted when it's all assembled into the spindle, in my case back in the machine. It simply screws in. When the depth dimension is right ( I used the tail end on my dial calipers) you simply tighten the grub item 1. That presses the ball into the coned recess in the stud and expands the thread onto item 2. The hatched portion where item 2 points to are actually longitudinal cuts in the thread.
Your 30 size tool holder will have a different adjustment length I would think. .In the diagram you can see that as the claws are retracted they are jammed closed by the bore of the spindle. That means that it is more likely any rattle is due to damaged or worn claws I think. The claws are the finer cross hatch.
Cheers,
David

Tuning?
wiki.linuxcnc.org/cgi-bin/wiki.pl?Tuning_LinuxCNC/HAL_PID_Loops

forum.linuxcnc.org/10-advanced-configura...to-example-mesa-7i77

gnipsel.com/linuxcnc/index.html

Manufacturer name and model numbers for the servo drives, servo motors and encoders, also upload your current ini and hal files. 

Thanks for the info guys. They are no longer building the 7i77D as you have all sussed out - so Ill use the 7i77 with a bit of extra logic. I need the X6 servo interface the 7i77 gives and Ive got the current 7i77D built in so Ill pursue that path for the mo . Ill check out the 'U' options though for the future
Thanks again..

Working with a 7i97 board
Cmc drives and dc brushed servo motors
original drives have tac but the encoders are wired directly to the 7i97 board. 

problem I’m having is I’ve only been able to jog forwards. The 7i97 board is sending either plus or minus 10v like it should be but for some reason I only get one direction. 

I’ve switched the signal wires around to see if it would make a difference and the motor still only jogs forward. 


I’ve switched back to the stock 7i97 hal and ini file. Only changes I’ve made to it are 
ip address 
Commented out the z axis since I don’t have one yet. 
frequency I’ve changed to 5000 to match what the manual said. 


Been working on it for a month or so with the same results. Digging through the original machine book only thing I can find that catches my eye is there’s something about uniswitching (not sure what that is) when the machine is using high speed. And h bridge when at low speed for torque. 

I don’t know if that matters or not. I’m lost. 

There are at least three ways to generate a bipolar analog voltage from PWM


1. Using PWM/DIR (typically using an op-amp circuit that
is changed from inverting to non-inverting by a analog switch)
(this has the disadvantage of a glitch when direction changes)

2. Using the PWM generators UP/DOWN mode and summing
a positive and negative filtered voltage.
(this has the disadvantage that the filter time constant
varies with the input)

3. Using the PWM generators offset mode (so 0 = 50%) and an op-amp
filter that has a DC offset of - full scale
(This has the disadvantage that you lose 1 bit of resolution, which may not matter
if you use dithering)

Found one with bad I/O (pin 13)  on P1 but Tormach only uses P2:

store.mesanet.com/index.php?route=produc...t_id=411&search=7i92
 

tommylight wrote:

Does it have an RJ45?
Supposing it does not as none of mine have it, so get an USB to RJ45/LAN adapter, around 7 to 15$.
I have 6 of those adapters from very old 10MBit to new 1GBit ones and all work perfectly fine with Mesa.
And i have a Dock for the Y370 with all the bells and whistles, got it for 30 Euro used!

 

From some quick Google research, I think your Y370 is likely Gen2 (2017), while mine is Gen1 (2016), hopefully that won't be a problem, conflicting information about USB ports on the Gen 1, not sure if it has the fast USB-C port, I think not appears to be , 2x USB3.0 and one USB2.0.
USB3.0 is pretty fast, so will probably be okay if I get a decent Ethernet dongle.

Would like to see your USB to Ethernet dongle, I don't want that to be a bottleneck for the MESA card.

Thanks! Yeah, things are going well, just wrapping it up. Latency is a bit high for me but I ran `rtla timerlat top` and some of the spikes are coming from my Radeon GPU. Others are coming from APIC and hrtimer (CPU interrupts, can't tune these out.)

I'm on a Ryzen system and I've noticed that PREEMPT_RT has much lower latency on some Intel hardware. It'll be interesting to see how latency performs on other hardware with the image.

I just pushed a huge update to my portage configs on GitHub, almost ready to publish the updated installer and root filesystem:

github.com/NTULINUX/gentoo_backup/commit...9333804131fbc352c3d5

@spumco did you ever get this sorted and working?

Yeah, that is the first thing I will check. I just started trying to remove the draw bar unit. I dont have a good cut away or manual for this, so will just disassemble what I can find.

Some slow progress lately.

I have made a new hal component for easier configuration.

The component is multiplexer logic for driving leds for examle. I am running 64 key keypad, 2 potentiometers and 30 leds with a 7i73.

More pictures and videos coming soon, still have some problems with ethercat.

 

Ich glaube, ich habe endlich ein Video gefunden, wie man die Teile zusammenbaut.

gv-vod-cdn.aliexpress-media.com/80ffc57e...d6c56241dfe52c865162

Sind die Systeme OZ und ER in Aufbau und Zusammensetzung gleich oder unterscheiden sie sich?

 

sorry i mean run time

Don't you think that i915 is kept out of the realtime kernel for a reason?
Never mind,  I see you applied the previous patched, good job

My posts here can be deleted to keep it a bit more clean 

Hi,
I have a lcnc 2.9.2 running a basic router using parallel port. I'm trying to set up a z-height probe. I have tried several configs with the same error.
"custom_postgui.hal:6: Pin 'halui.mdi-command-00' does not exist".


#########custom_postgui.hal#######
# Button for automated Z Touch Off with plate
net ztouch halui.mdi-command-00 <= pyvcp.ztouch


########router,ini
HAL]
HALFILE = router.hal
HALFILE = custom.hal
POSTGUI_HALFILE = postgui_call_list.hal

[HALUI}
MDI_COMMAND = O <z_touch> CALL

any ideas on what I'm doing wrong?

thanks


SOLVED !!!!!