Hi MelvinBruce~
Saw your configuration and recognized it as being
nearly identical to the controller I built for my
Techno-Isel project. In fact, I used the same
diagram you show in photo #1...
Type: Posts; User: johnohara
Hi MelvinBruce~
Saw your configuration and recognized it as being
nearly identical to the controller I built for my
Techno-Isel project. In fact, I used the same
diagram you show in photo #1...
OldSalt1945~
You mentioned in your first post:
Before chasing down hardware related issues that may or may not be causing your problem, I suggest reloading
version 0.9i. If the problem...
Got it. Thanks.
Please ignore the blank stare -- and the sound of crickets.
~john
Hoss~
Is it my imagination or is this thread missing a ton of postings?
If I remember correctly it once had 3000+ posts and over a million views.
Looking at page 78, the posting dates end in...
Will post to this thread next week.
~john
MrJBeast~
I just finished building a new cnc controller for my DaVinci but I'm out of town until next week -- which is why I asked. The
configuration is arduino based, uses 485 oz/in. steppers,...
MrJBeast~
What is your timeframe? We're in January, I'm assuming the kids are back in class. Days, weeks?
~john
Somewhat off-topic I guess, but Dan Gelbart's entire video series on YouTube is well worth the time.
He's very generous with his knowledge and expertise and I highly recommend it.
~john
AR1911~
Missed the "H" in the first part number. Apologies.
KL23H2100-35-4B vs. KL23H2100-30-4B
That will let you check the pdf file for each drive to compare specs.
The link I provided...
AR1911~
Pplug is right. The config that AT gave you is a strong one. If you go this route I'd get the KL23H2100-35-4B stepper motors
instead of the KL232100-30-4B. The 3.5A version of the these...
Defeng~
I believe you should ship whatever product you have to those who paid money and then waited patiently for over a year to hear from you.
We all understand health-related issues, and my...
As far as I know, grbl is designed to run on AVR 328p microcontrollers only.
~john
Jedi1990, mcphill~
All things considered, you may be better off getting another PC breakout board. Wantai Motor has them on eBay for $15.00.
Search for "Wantai Breakout Board." Looks like they...
CNC4breakfast, mx270a~
Just read mx270a's post all the way through.
I was going to use 3-in-1 oil as well but decided against it due to its viscosity. Plus, I had no idea what
"Severely...
CNC4breakfast~
Here's a correct link to the maintenance manual. Sorry, I think there's a typo in the previous post.
...
CNC4breakfast~
I carefully checked the msds sheets for the products I chose. The maintenance documents I
downloaded from Techno-ISEL seemed very specific about what grease and oil to use. It...
CNC4breakfast~
Here's a post from my thread earlier this year. Hope it helps.
http://www.cnczone.com/forums/techno-cnc/210880-johnoharas-techno-isel-davinci-post1440946.html#post1440946
~john
jmsiefer~
Btw, you can test the EasyDriver without using grbl. Straightforward actually.
~john
Hi jmsiefer~
How is the laser turned on and off?
The EasyDriver uses 4 wires to drive the stepper coils (2 wires for each coil). Each time you step the drive it energizes the pins.
~john
Mark Celebuski at Trinic LLC in New York is another guy whose generous with his expertise. Does nice work too.
"I don't believe that anyone should expect to earn a living in any business without...
Ironically, there's a lot of expertise from people who cast countertops. They have the same issues with flow, air,
recipes, forms, etc. Granted, a cnc machine's accuracy is a big consideration, but...
Hi snowluck~
The mineral casting thread on cnczone is long and very detailed. It takes a lot of time to get through it.
Before you go down that road may I suggest that you practice with...
Purchased a SongYong Hybrid Stepper Motor and a Pololu High Current Motor Controller.
The controller has a TI DRV8825 stepper motor driver -- 4.5V, 2.0 A per coil. The
stepper's holding torque is...
Pplug~
I have the serial cable supplied with the machine. Matched the baud rate with the dip switches, etc.
Plan B.
~john
225288
Bolt left side gantry column to base. Brushed a little oil on each bolt.
225290
Re-attached Y-Axis, ballscrew and limit switch.
225292
Attached protective covers.
225294
Hi Pplug~
I was surprised too. Expected it to have sawdust inside but nowhere near that much. The
maintenance manual recommends greasing the ballscrew *through* the rubber flaps.
You are...
A lot more work involved here. As I suspected, the x and y axis assemblies are identical
with the exception of how the y-axis attaches to the gantry columns. To clean this
I decided to disassemble...
X-Axis is clean, greased and oiled.
224936
224938
224940
Cleaned and polished the covers and end plates too.
224724 224726
Four bolts on the bottom hold the x-axis in place.
224728
224730
224734
Hard to clean without removing the assembly. Needs to be done.
Got a chance to clean, re-grease, and re-oil the z-axis.
It took me a while to understand the types of compatible grease and oil. The
maintenance manual listed a number of options. I had to...