Check out HobbyCNC.com
Type: Posts; User: WoodWorkerB
Check out HobbyCNC.com
I can suggest HobbyCNC.com
I’ve had good luck and fun with my design: https://hobbycnc.com/product/diy-cnc-router-plans/
You can download the plans without the measured drawings for free to check it out.
Consider http://HobbyCNC.com. Build it yourself and save.
I have compiled a list of all the reasons I’ve seen “missing steps”: https://hobbycnc.com/sp_faq/missing-steps/
might find a clue there.
BrianV
I made one. Inexpensive and works well.
DIY Cable Carrier Tray - WoodWorkerB
To put a fine point on it, mactec54 is very right. It may not have been your issue, but his input is still valid.
For your consideration: https://hobbycnc.com/product/diy-cnc-router-plans/
Regards, BrianV
Cool. The offer to test and/or replace the regulators is still on the table. Just let me know. I want you to use the board and be happy with it. Now might be the right time if you're not using it....
Yes. U5 "feeds" the regulated 24 Volts to the input of U4 (the 5volt regulator). So if U5 was damaged, outputting less than, say 5.5V, then that would indeed cause U4 to read low.
Let me know if...
First off, the fan connector is FOR A FAN ONLY. The regulators on this board are designed to run the board only.
The MAXIMUM (and I'd be afraid to go there) you can pull from the +24V Fan connector...
Group Members,
In the rare chance you have a problem with a HobbyCNC board, do feel free to contact me directly through the HobbyCNC.com website.
Just sayin'.
Brian V, HobbyCNC
Dear rotccapt,
Could be a couple of things.
1) seems we can eliminate the power supply as you tried several (smart move)
2) there are a couple of FAQs on my website that may give some...
Consider HobbyCNC.com
I have
- HobbyCNC Pro (same driver chips).
- 1/4-20 drive screw
- 36V unregulated linear power supply
- 300oz in motors
- 1/2 microstepping
I can push it to 40ipm, but that's pretty much...
Yes, the HobbyCNC boards operate with just two pins (per axis), Step and Direction. These are TTL level signals.
Yes, the stepper will lock when power is applied - if you've set the motor current...
Frankenmill! It's alive! What a beast. Nice work.
You are NOT suggesting to connect the safety ground ( typically the green wire) to some point within your power supply system are you? The purpose of this wire is to ground any part of the chassis or...
Looking good. Keep the photos coming!
BrianV
How long is your parallel cable? I provide a 6 foot one with my combo kits, and 15 feet would be considered "long" for a parallel cable. The parallel standard is a single-ended, un-balanced circuit...
It would be unlikely for the other axis to induce movement in your x-axis.
When you are running the tests, is the X-axis 'locked' (you can't move it by hand)? It should be locked.
The inputs are...
HobbyCNC works with Mach and LinuxCNC.
Reliable and not cheap import junk.
If you are talking about the 24v fan voltage on a HobbyCNC board, then NO WAY! 2 amps is a helluva lot. That output is only to drive a small fan at a few tenths of an amp.
HobbyCNC.com + LinuxCNC.com
Did you verify you have a proper Parallel cable? ALL pins wired straight through. Did you verify it with a voltmeter? I know this is was required when I installed my HobbyCNC board (though it does...
I had a 'bad' mechanical limit switch that would trigger randomly and stop (screw-up) my run. I found it by running a demo program (with no stock and no tools), and I tapped on each switch with a...
Both those solutions make me queazy. May work fine, or it may be a lesson in getting cheap import solutions to work. (though not the same product, this should be a 'red flag': repair TB6560)There is...
... and you'll learn another ton-or-two once you get it all running! Thing looks like a beast. Keep us updated.
In my experience, the Sanken 7078MPR chips are robust and reliable.
Take a look at my stepper driver boards: HobbyCNC.com. They are perfect for low-cost DIY system.