Show all posts by user
Safety...
Gonna need a new heater
something like this (maintain 24v supply)
16" X 16" 400 X 400mm 24V 200W w/ 3M JSR2 Kapton Heater Heating Pad Mat
200W will not put too much of a strain on the 15amp Ender power supply
and a piece of 400mm x 400mm glass for the top
and a piece of something for the bottom bed
If you want it to heat up faster 120V AC heater and Solid State Relay to control it
other
by
cozmicray
-
General
Better to get laser with TTL trigger
Power laser via 12V supply
ON / OFF PWM via TTL
Return it get a laser with TTL trigger
by
cozmicray
-
Laser Cutter Working Group
I have a CubeX Duo that I have not upgraded yet.
Did you preserve the extruder PC board above and behind extruders
It appears to have some components on it?
Do these play well with other extruder drivers?
why RUMBA and 24V?
by
cozmicray
-
Reprappers
Perhaps if you want comments
post a couple of jpegs of your design
No one likes to unzip a bunch of scad files
and open them up to look at
by
cozmicray
-
CoreXY Machines
Flyingbear p902 has huge bed cantalever
they even dicontinued it with p905 that supports bed on two ends
Consider linear rails
read thru:
a lot of good build techniques there
The digital dentist knows how to build a printer
by
cozmicray
-
Extruded Aluminum Frames
use a voltage divider
or
put a 5V zener diode in circuit
How can I use a 12 V input on a digital Arduino pin?
fizzzz zap :::::::: magic smoke released!!!!
by
cozmicray
-
Laser Cutter Working Group
Laser Supply is connected to 12V power supply.
TTL trigger (H2) hooked up to D9.
When M106 issued D9 5v Laser ON
M107 D9 0v Laser OFF
Test laser with 12v supply ON
apply 5v to TTL -- laser should come ON
remove 5V Laser OFF
****** Ding Ding Ding
D9 high current capable 12V output
did 12v fritz your Laser TTL trigger
======================
Here they use pin 6 (a pin that can be
by
cozmicray
-
Laser Cutter Working Group
What Firmware Marlin 1.1.9
What Software?
------ send g-code to printer
------ Generate laser paths and control laser ON/OFF
Find a pin that you can PWM at 5V
hook that up to laser TTL
Find g-code that controls that pin
Tell software the command to control laser
by
cozmicray
-
Laser Cutter Working Group
Grbl Controller 3.6.1 sends G-code to your control board
What inkscape laser plugin are you using?
The plugin will determine the Laser ON/OFF and power level
G -code commands
by
cozmicray
-
Laser Cutter Working Group
$1000 budget
Prusa i3 mk3 kit $750
then add the Prusa i3 MK3 Multi Material 2.0 upgrade kit $300
Great printer --- lots of support out there
by
cozmicray
-
General
I would like to know of a PLA powder supplier?
Small quantity
One that you don't have to purchase a metric ton?
by
cozmicray
-
Printing
Laser should be connected to 12V supply
from DZT 's Store website ---- PWM/TTL:support . TTL 0v off ,5v on
so supplying 5V to the TTL should trigger (turn ON) the laser
The TTL is modulated by a PWM signal from controller to get various power output
(longer pulse width --- more laser ON time)
What firmware and software are you using?
Many of SW programs allow selection of how laser is t
by
cozmicray
-
Laser Cutter Working Group
Why are you using this FYSETC great unknown board
with Atmega2560 CPU (8 bit)
and unknown firmware Klipper (not much of a user base to get help )
six drivers (but there is only ONE motor on Z-drive)
?? are you modifying Z to Three motor drive??
the FYSETC F6 V1.3 board detailed at:
https://wiki.fysetc.com/F6_V1.3/
Klipper (Rasp-Pi part) will be running under OctoPrint in Rasp-Pi
feeding
by
cozmicray
-
CoreXY Machines
FWIW
Have a friend that has been seeking to get
PLA and a dissolvable support to work on all kinds of machines.
The only one successful Prusa multi-material machine
by
cozmicray
-
General
"linear rails run in pairs are hard enough to keep perfectly parallel and true to each other
adding a third would add another level of complexity which I'm not sure I would have the patience for."
One linear rail would replace your dual rod guide .... so only three rails
2 rods parallel --- parallel to two other 2 rod assemblies ---- I see six vectors going every witch way ---
?? Over -
by
cozmicray
-
CoreXY Machines
That looks like a pure
DIY design with ---- wood, MDF and plastic corners
I don't think the logo means much
fire up SketchUp, OpenScad, Fusion 360
and do your own
by
cozmicray
-
Reprappers
Prusa i3 MK3
upgrade to Multi Material 2.0 squirt out 5 materials
How many people out there successfully squirt ABS with PLA support?????
by
cozmicray
-
General
I have a
Hulamin m61 6061 T651 AMS 4027
aluminum plate (41 x 39cm)
Is this OK for printer bed?
I can't find 0.5AA spec
"M61 is a machinable plate that offers gauge and flatness tolerances to tighter than 0.5AA specifications"
Tnx
by
cozmicray
-
General
What format are attached pixs?
What is purpose all the space above minimum Z?
Why not linear rails on Z?
Frame should probably have corner bracing.
Have you studied the Digital Dentist post:
and
UMMD
by
cozmicray
-
CoreXY Machines
Wally development
Some designs were proposed to make Z Axis linear.
Don't know if anybody implemented them?
Inventor went on to better designs!
by
cozmicray
-
General New Machines Topics
I've got a Vaeder V-struder feeding filament on DaVinci 1.0
The belt solution, which drives
filament using belts. This allows for great torque on your filament, without
slipping or damaging the filament. The geared solution gives enormous torque
from even a simple stepper motor.
by
cozmicray
-
General
The TTL trigger is not a voltage dependent control.
The trigger pins normally are pulse width modulated (PWM) to control laser output
More time ON ( at 5V) the greater the laser ON - more power.
So you have to set up your control pin to PWM
or select a pin that can set PWM frequency
Read
by
cozmicray
-
Laser Cutter Working Group
On wally a movable pulley on bed was no problem to lift bed
When motor turned OFF -- stage fell to bottom --- really need stepper with brake
Correcting arc to linear NOT trivial in slicer code or post processor
Here is python code by Nick Seward (inventor of wally) to correct arc in Z motion
Good Luck
by
cozmicray
-
General New Machines Topics
The Z movement is an arc.
? Slicer post processing to correct ?
Wally 3D printer used a parallel arm to move table
Wally really never worked
I have one sitting on a shelf gathering dust!
by
cozmicray
-
General New Machines Topics
Some better videos of the mechanisms working would be nice?
How do you align bed with XY gantry ? Bed leveling?
Tnx
by
cozmicray
-
CoreXY Machines
notice Genova engineered backbone into
their gutter bracket to take the load like T-beam
by
cozmicray
-
Printing