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VDX
What is your source for powders for sintering?
I have found small quantities of PLA or other powders very limited
Tnx
by
cozmicray
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General
Please get some socket head bolts and a set of hex drivers
Phillips head screws for wood working (maybe)
Bed
See Digital Dentist:
UMMD 3D Printer Bed Design
You may need Kinematic Leveling with steel / aluminum interfaces
aluminum lead screw block to steel bed to aluminum bed plate
thermal differences
by
cozmicray
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CoreXY Machines
Looks like a guided MIG welder.
A MIG welder's best friend is a grinder?
by
cozmicray
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Developers
ReBuild?
What is being rebuilt?
What existing parts must you reuse?
What are your NEW requirements?
I have been in search of what factors are important for a good printer?
I am amazed at the performance of the CR-10 I purchased
and just can't figure out what they did right to make a great 3D printer?
by
cozmicray
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CoreXY Machines
Cool
do you hear
"Hello Mr and Mrs America and all the ships at sea"
Some one born in 2000 would never know what it is?
Put an arduino w blue-tooth in it, so you can listen to it with your air pods
and a stepper motor on dial drive, so you can tune it from an app!
by
cozmicray
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Look what I made!
John Harrison was a carpenter who build his H1 clock in 1735.
A clock maker that showed precision could be done by hand tools
and he went on to get Longitude prize.
One of his clocks has been running with great accuracy for 300 years
He taught his neighbors to file gear teeth and produce gears
So .... a lot can be done with simple tools to make a great project
Also design, design, design
by
cozmicray
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CoreXY Machines
You give little information?
Did you build this printer
Did you look at hictop site and assembly and user manual?
Are you using the local control panel or PC software to control it?
Is the Marlin firmware configured properly?
You might want to look at:
Prusa i3 and variants
by
cozmicray
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General
DD said "The screws should be put as close to the bearing blocks as possible."
so move the screws and rails together to a spot that supports the bed best.
Alignment of 4 rails is tough -- self aligning? bed wobble around?
Good engineering -- accepting design that works and using it!
QuoteMorbi
Ok! Thank you for your response!
So basically, I keep the linear rails where they are and p
by
cozmicray
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CoreXY Machines
My DaVinci v1
Case 58 x 42 x 40 cm enclosed case
heated 220 x220 mm bed
replaced hot end and extruder
--- micro swiss like hot end with bowden extruder (I have Vstruder on it now)
Repetier firmware (Marlin also works well)
Prints great
--- meets all your requirements
except
your printer is a useless pile of junk now?
by
cozmicray
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General
Have you heard about 3MF file format for 3D printing
Here is a little video on 3MF vs STL
What do you think?
by
cozmicray
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General
Leave that printer intact!
Get / Build another printer!
Creality 10 or Ender 3
you will have a very large use base!
by
cozmicray
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Controllers
The "hershey text" extension in Inkscape gives single stroke fonts
A good resource:
by
cozmicray
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Reprappers
Perhaps a sprial bevel gear
they are very smooth and used in Hi torque applications (differentials)
?What is the best (smoothest) right angle gear configuration?
Have to also consider the locking of the gear?
by
cozmicray
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Look what I made!
012 to 032 in below video shows printing of this house
looks like a lot of labor around
27 hours to print
27 days to finish?
3D printed house cost around $10,000 to create (printed portion only)
by
cozmicray
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General
Quoteetfrench
Actually, shoulder bolts were not designed for bearings although many people use them for this. Most shoulder bolt shoulders are .002" to .004" undersized which makes for a very loose fit in a bearing. McMaster-Carr has precision shoulder bolts which are -.001" to 0" and would be a better choice.
What were shoulder bolts designed for?
??
by
cozmicray
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Reprappers
You did not specify what type / kind of extruder / hotend you will be using?
Direct, Bowden, ---- looks like E3D Titan
Original FT-5 hung extruder / hotend below a horizontal linear rail
713 maker makes a beefy aluminum mount
[713maker.com]
"I will likely try one of the configurations I show since I have a couple extra guides (crappy ones) on hand."
It appears your designs were a forgon
by
cozmicray
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Extruded Aluminum Frames
The linear rails and rods on X, Y may over constrain the X-Y movement
The CR-10 is so simple, ---- 3D printers were max frustration until I got CR-10
300 x 300
Wish I knew what components make for frustration free printing
Coupling wobble has induced many artifacts in prints
Get the right SCR for AC bed one rated for 220 and the current your heater will pull
maype a separate switch on it
by
cozmicray
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Extruded Aluminum Frames
You should perhaps start with requirements -- then get parts that build to the requirements
See DD build
If I see the orange as printed parts -- those parts may be the best use of metal
I must say my CR-10 is a rock solid printer with little frustration -- just can't figure out what is important to make it a great printer?
You stated MGM linear rails on all axes -- your pictures show on
by
cozmicray
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Extruded Aluminum Frames
So CO2 is a whole new ball game -- not a diode laser!!!!
The trigger is a TTL link
" TTL (Transistor-Transistor Logic). For a TTL input this means that anything
below 0.8 volts is a “zero” and anything above 2.4 volts is a “one,”
and that it presents a load of less than 1.6ma to the driving circuit"
Your resistor is limiting the current thru the TTL switch.
The pulse width is determined by
by
cozmicray
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Laser Cutter Working Group
???Arduino Mega/Ramps 1.4 - Re-Arm/Ramps 1.4???
Will those run at higher than 5000mm/min
I use arduino / GRBL
PWM 2W laser to control power out and engraving
I don't understand needing > 5000mm/min unless you
need project done is 10 msec?
by
cozmicray
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Firmware - Marlin
Comgrow is a professional 3D printer distributor, we provide high quality and cost effective 3D printers to everyone of you.
Customers could buy the printers directly on www.comgrow3d.com. The printer will be shipped from China.
So I think Comgrow may have a EU presence but who knows?
I don't think Comgrow adds anything but you might want to drop them an email
to see if the give special support
by
cozmicray
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General
Perhaps you could try
Spiralize contour in Cura
Configuration >> Extrusion >> Spiralize Contour
by
cozmicray
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Experimental
What software are you using to produce G-code?
How does the software turn laser ON/OFF and set power?
My experience with GRBL laser engraver
I guess people do it in Marlin?
For a while I used a micro switch on Z axis to close when Z < 0 and fire laser
Laser/Spindle Configuration
Laser web lets you set laser ON/OFF command produced in G-code
#
by
cozmicray
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General
60ml Syringe Extruder for Liquid Deposition Modeling
Bowden Syringe Extruder
by
cozmicray
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Printing
Maybe Folgertech FT-5
by
cozmicray
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General
Why is this in "Prusa i3 and variants"
will you be converting i3?
Printing and milling Two extremes
......Printing -- little forces on mechanics all axes
......Milling --- extreme forces on the mechanics all axes ---- important
by
cozmicray
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Prusa i3 and variants
Folgertech buildplate material
Aluminium composite material (ACM), are flat panels consisting of
two thin aluminium sheets bonded to a non-aluminium core.
The standard ACP core is polyethylene (PE) or polyurethane (PU).
The older FT-5 used Melamine sheets
Now all use ACM
See
by
cozmicray
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General
Folgertech:
FT-5, FT-6 Kits
by
cozmicray
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General
How to:
attach bowden extruder directly to hotend
without E3D type connection?
E3D type heat sink on right (in photo below) with stepped transition
Bowden extruders at left, Bowden hotends in center
Threads in all are the type found on PTFE tubing adapters
Mount must:
be a heat break to keep extruder cool
have a 1.75mm bore to conduct filament into hotend
all metal (avoid PTFE)
Ideas
by
cozmicray
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General
Page 1 of 35
Pages: 12345