Advanced Search

You can look for a "10v reference". Those will output 10V, can be had reasonably inexpensively (either as boards or single parts, based on a 30-second eBay search), and should work so long as you're not drawing much current. That's what I was going to use to control my spindle until I decided that avoiding analog would be ideal (it's a servo, so quadrature input is what I ended up going with).

If a 12V supply will let you adjust it low enough (or a 9V supply high enough), that will also work, and you're not going to harm it at all by doing so unless the manufacturer did something really strange. That's probably the easiest approach.

Series diodes should also work as long as you don't have varying loads. Not a fan of that solution mostly because it's not "right".

If you're up for soldering, plenty of adjustable regulators out there- eg www.digikey.com/en/products/detail/stmic...ronics/LM317T/591677 You can probably find breakout boards for something that will give you 10V by just changing a resistor.

All that said, I would leave it as-is if it's working- the fewer parts/wires/etc. the better IMO. It's your machine, though, so if you think 0-10V would be better or you'd have fun doing it or something, have at it.

Guys, try the attached.  No idea if it works, but it's not giving any errors and outputs data.

I do know about the pot on the PSUs but wasn't sure dialing it down 2volts was a great long-term choice. Dropping in a few diodes makes sense, I'm guessing the current draw on a VFD control would be minimal. I should have a bunch of 1n4001 laying around here somewhere lol.

Thanks
M

Most decent power supplies do have an adjustment pot, clearly visible and marked on DIN rail mount types, not clearly visible on the mesh metal cased ones.
It is much easier to use two diodes in series wired to positive of 12V on one side and to Mesa +10V on the other side, that will drop the voltage by 1.2-1.3V and should be perfectly fine for the VFD. Mind the polarity, the line on the diodes goes towards the Mesa board.

For no real good reason I'd like to change my lathe from using 0-5v to control the spindle to 0-10v.
The VFD is an old VFD05-D230 and it has the options of 0-5V, 0-10V and 4-20mA and supplies it's own 5v if you are using a potentiometer so it looks like I just wired my 7i76 (old version connected to a 6i25 via DB25 cable) in place of the pot. I can't find any way that VFD will supply 10vdc so I need to use an external power supply but most are 5 or 12 (when I say most I mean all the ones I have here and the quick look at meanwell online. Digikey ones quickly jump to well over $100)
I know 0-10 is closer to standard but what are you using for supplies? Is a 12-10 buck converter ok? Can I "turn down" a meanwell 12v to 10 without killing it?
Just asking what some options are
Thanks
 

There has been a major re-write of the linuxcncrsh interface. 

• C-style string handling has been replaced with std::string and C-style arrays now use std::vector (that should fix the buffer overflows ).
• Many commands have been streamlined in what they allow as arguments so that similar commands use similar arguments (like -1 for 'all' and defaults)
• Output of commands has been streamlined to use identical format for same type of information
• Axis and joint indicators are now checked whether they actually are available and result in an error if they are not
• Error checking is consistently done on arguments and messages returned when something is amiss
• Heartbeat from the servo-thread (motion controller) is used to prevent RT <--> non-RT races
• GET INI - now works and you can read any INI file entry
• GET INIFILE - works and returns path of INI file
• GET PROBE now issues an MDI G38.2 because it [cw]ould not work otherwise.
• GET CLIENTS returns who is connected
• SET DISABLE lets you downgrade own connection from being enabled and also allows other clients to be downgraded
• SET JOINT_HOME (alias: SET HOME) now works in conjunction with SET JOINT_WAIT_HOMED to wait for completion
• SET JOINT_UNHOME lets you unhome any joint
• SET TIMESTAMP lets you enable date+time stamped responses
• Files read/loaded are now using a functional path (as set by the 

  -d

   command-line option). The default is 

  $HOME/nc_files

  . You can pass your own ':' separated list to the 

  -d

   option

Several GET/SET commands were removed or deprecated:

• COMM_MODE - removed - the communication is always ASCII.
• CONFIG - removed - was never implemented
• SET_WAIT - removed - was already deprecated (replaced by WAIT_MODE)
• COMM_PROT - deprecated - API versioning is overrated and is non-functional anyway
• UPDATE - deprecated - emcStatus updates are better left to be automatic
• UPDATE_STATUS - deprecated - emcStatus updates are better left to be automatic.

If users who are using linuxcncrsh and the master branch could feedback any comments or problems, that would be appreciated. 
(please comment in this thread:  forum.linuxcnc.org/41-guis/58443-linuxcncrsh-updates#343698 )

Please comment here about any issues found with: forum.linuxcnc.org/29-forum-announcement...pment-version#343699

 

So wie ich das lese, willst du den Motor als Spindel einsetzen....
Wenn ich all deine Wünsche berücksichtige, landest du bei Kollmorgen. Das sprengt aber dein Budget 

hmnijp wrote:

Marcos wrote:

A “HAL-only second planner” is technically possible, but then you own all the safety, limits, interlocks and coordination logic yourself — and it tends to become fragile fast.
 

If the toolchanger robot only requires point-to-point motion and doesn't require circular or linear interpolation, then extrajoints can be used. Basic safety chains, homing, and limits will work as for other regular joints. However, for motion planning, you need to connect the simple_tp or limit3 components. Their motion calls should be implemented in custom M-code (e.g., M100 P1.2 Q23 ...).

oooh. yeah we can 100% just have single axis at a time motion for this.
thanks, ill look into this.

The devices is starting to take shape here

 
 

As a bit of background on the chuck/no-go safety model:At work I requested a machine with a control that includes an integrated safety zone around the chuck (something I had seen on Heidenhain controls).
In the end, I was assigned a lathe with a Siemens control, and I’ve been very satisfied with it — it works well in practice and I can program effectively on it.However, the concept of having the chuck geometry considered in the motion/safety logic stayed in the back of my mind.
Since that idea seemed useful for safe at-the-machine programming, it eventually found its way into LatheEasyStep’s design.

Hi all,
here is a short update on the latest changes in LatheEasyStep:

Step list loading issue fixed
In some embedded QtVCP scenarios, the operation list stayed empty after loading a single step or a full program. The operation list binding is now more robust.

Safer retract/free-travel logic (lathe-specific)
Retracts are now context-aware per operation:

simultaneous X/Z where safe
groove/keyway: retract X out of material first, then Z
drilling/threading: retract Z clear first, then X
Current tool position relative to stock/chuck is now considered.
Extended chuck / no-go safety model
The program header now supports chuck-related parameters (size, workpiece type, clamping mode, profile) with automatic no-go zone calculation.

New machine/workshop profiles
Quick presets apply typical parameter combinations automatically (e.g. chuck + clamping mode + profile).

Preview improvements
The chuck safety area is now shown in the preview as a dedicated colored zone, including a legend entry.

Save/load extended
New header fields (chuck/profile/no-go/machine profile) are now properly persisted and restored.

My C enable was commented out by accident

Marcos wrote:

A “HAL-only second planner” is technically possible, but then you own all the safety, limits, interlocks and coordination logic yourself — and it tends to become fragile fast.
 

If the toolchanger robot only requires point-to-point motion and doesn't require circular or linear interpolation, then extrajoints can be used. Basic safety chains, homing, and limits will work as for other regular joints. However, for motion planning, you need to connect the simple_tp or limit3 components. Their motion calls should be implemented in custom M-code (e.g., M100 P1.2 Q23 ...).

Hi,

Now that we won't be getting any support from the German PLC forum, I did some searching myself and found this interesting project. In my opinion, it could serve as a good template, as all the code I've seen so far uses a similar topology.

I would also like to emphasize that there is no need to reinvent the whole concept. We already have functioning components (CIA402; homecomp.comp) that form a good basis. Many thanks to @rodw and @MobiusToast for their excellent pioneering work. What is missing now is the further development of these components.
I fear that even this thread, with its good approach, will ultimately be forgotten.

For my part, I will take a different path.
Since I continue to have homing problems and have now ruled out EMC and configuration errors, I think the problem lies with the A6 itself. Yesterday, it took 3 minutes for the x-axis to start the reference run! 
I will now try to expand my system to include battery-buffered encoders.
At least according to the documentation, this should be possible. This would make homing obsolete.

 

Hallo Linuxcnc Freunde,

habe festgestellt das bei dem Handrad XHC-WHB04b-6 die Lead Funktion nicht richtig funktioniert.
Habe an der Treiberdatei pendant.cc die Zeile 346 hinzugefügt. Die "oder" Funktion für die 9b oder 1c wurde ja schon mit einegbaut. Danke an alle dafür.

Bei mir funktioniert diese jetzt und lässt sich aktivieren.
Hoffe konnte ein bisschen weiter helfen. Leider muss dazu Linuxcnc neu erstellt werden mit dem make Befehl.

Habe versucht die Datei mit hoch zu laden, hat aber nicht funktioniert.

[edit]