5 Dec
2018
5 Dec
'18
2:42 p.m.
last night at sudoroom i did some things to get solder paste flowing from the
TAZ 3 3d printer.
i brought in a compact air compressor and adjusted its power switch to click
off around 100 PSI (since it was failing to reach its design pressure in a
reasonable amount of time and we only need like 40-50PSI for solder paste)
i'm not sure if it's still working because it cut out apparently due to heat
the last time i was running it, but possibly just because of duty cycle. It
needs a fitting installed into the outlet to plumb it to the solenoid.
Fittings are in the box behind the printer and there's teflon tape in the
"tape" box on the shelves in sudoroom.
i installed a three-port solenoid on the 3d printer which plugs in instead of
the extruder resistor / temperature sensor. It contains a 47KΩ resistor to
simulate a thermistor (to avoid a fault code) and it wires the nozzle heater
wires to the three-port solenoid (which is rated at 24VDC matching the
printer's power supply)
I piped the 3-port solenoid to a syringe and mounted a syringe holder on the
print head assembly in a reasonable place. A syringe of solder paste is in the
sudoroom fridge and can be used. Needles of various sizes are in the cardboard
box behind the 3d printer.
the air compressor's outlet needs to be plumbed to the flexible black hose
going to the 3-port solenoid. The solenoid needs to be mounted to the print
head (a twist-tie should work).
unfortunately the 3D printer's firmware seems to be cycling power to the nozzle
resistor when a temperature is selected, probably because of PID parameters, so
we will have to look for a set of commands (or modified firmware) to activate
the solenoid properly during the dispensing process. This printer doesn't seem
to have wires for a print head fan, which is how we connected the solenoid in
past implementations of this setup. There will need to be a script or
modification to rpt2pnp to issue the right commands for this setup.
as a reminder the software for creating g-code to dispense solder paste from
the .rpt file output of a KiCAD circuitboard project is here:
https://github.com/hzeller/rpt2paste
note that it's superseded by
https://github.com/hzeller/rpt2pnp
which may be newer. the latter was confirmed to (apparently) correctly process
the .rpt file from the project we'll likely dispense solder paste onto first:
https://github.com/fitzdoingprojects/big_battery
i'll be gone for two weeks but if anyone wants to make progress on this project
please write back and i'll help as much as i can.
-jake
18 Dec
18 Dec
6:47 p.m.
New subject: 3d printer solder paste dispensing at sudoroom using rpt2paste
seriously no one had anything to say about any of this?
On Wed, 5 Dec 2018, Jake wrote:
last night at sudoroom i did some things to get solder
paste flowing from the
TAZ 3 3d printer.
i brought in a compact air compressor and adjusted its power switch to click
off around 100 PSI (since it was failing to reach its design pressure in a
reasonable amount of time and we only need like 40-50PSI for solder paste)
i'm not sure if it's still working because it cut out apparently due to heat
the last time i was running it, but possibly just because of duty cycle. It
needs a fitting installed into the outlet to plumb it to the solenoid.
Fittings are in the box behind the printer and there's teflon tape in the
"tape" box on the shelves in sudoroom.
i installed a three-port solenoid on the 3d printer which plugs in instead of
the extruder resistor / temperature sensor. It contains a 47KΩ resistor to
simulate a thermistor (to avoid a fault code) and it wires the nozzle heater
wires to the three-port solenoid (which is rated at 24VDC matching the
printer's power supply)
I piped the 3-port solenoid to a syringe and mounted a syringe holder on the
print head assembly in a reasonable place. A syringe of solder paste is in
the
sudoroom fridge and can be used. Needles of various sizes are in the
cardboard
box behind the 3d printer.
the air compressor's outlet needs to be plumbed to the flexible black hose
going to the 3-port solenoid. The solenoid needs to be mounted to the print
head (a twist-tie should work).
unfortunately the 3D printer's firmware seems to be cycling power to the
nozzle
resistor when a temperature is selected, probably because of PID parameters,
so
we will have to look for a set of commands (or modified firmware) to activate
the solenoid properly during the dispensing process. This printer doesn't
seem
to have wires for a print head fan, which is how we connected the solenoid in
past implementations of this setup. There will need to be a script or
modification to rpt2pnp to issue the right commands for this setup.
as a reminder the software for creating g-code to dispense solder paste from
the .rpt file output of a KiCAD circuitboard project is here:
https://github.com/hzeller/rpt2paste
note that it's superseded by
https://github.com/hzeller/rpt2pnp
which may be newer. the latter was confirmed to (apparently) correctly
process
the .rpt file from the project we'll likely dispense solder paste onto first:
https://github.com/fitzdoingprojects/big_battery
i'll be gone for two weeks but if anyone wants to make progress on this
project
please write back and i'll help as much as i can.
-jake
6:56 p.m.
New subject: 3d printer solder paste dispensing at sudoroom using rpt2paste
holidayz...
On Tue, Dec 18, 2018 at 6:47 PM Jake <jake(a)spaz.org> wrote:
seriously no one had anything to say about any of
this?
On Wed, 5 Dec 2018, Jake wrote:
last night at sudoroom i did some things to get
solder paste flowing
from the
TAZ 3 3d printer.
i brought in a compact air compressor and adjusted its power switch to
click
off around 100 PSI (since it was failing to reach
its design pressure in
a
reasonable amount of time and we only need like
40-50PSI for solder
paste)
i'm not sure if it's still working because it cut out apparently due to
heat
the last time i was running it, but possibly just
because of duty
cycle. It
needs a fitting installed into the outlet to
plumb it to the solenoid.
Fittings are in the box behind the printer and there's teflon tape in the
"tape" box on the shelves in sudoroom.
i installed a three-port solenoid on the 3d printer which plugs in
instead of
the extruder resistor / temperature sensor. It
contains a 47KΩ resistor
to
simulate a thermistor (to avoid a fault code) and
it wires the nozzle
heater
wires to the three-port solenoid (which is rated
at 24VDC matching the
printer's power supply)
I piped the 3-port solenoid to a syringe and mounted a syringe holder on
the
print head assembly in a reasonable place. A
syringe of solder paste is
in
the
sudoroom fridge and can be used. Needles of various sizes are in the
cardboard
box behind the 3d printer.
the air compressor's outlet needs to be plumbed to the flexible black
hose
going to the 3-port solenoid. The solenoid needs
to be mounted to the
print
head (a twist-tie should work).
unfortunately the 3D printer's firmware seems to be cycling power to the
nozzle
resistor when a temperature is selected, probably because of PID
parameters,
so
we will have to look for a set of commands (or modified firmware) to
activate
the solenoid properly during the dispensing
process. This printer
doesn't
seem
to have wires for a print head fan, which is how we connected the
solenoid in
past implementations of this setup. There will
need to be a script or
modification to rpt2pnp to issue the right commands for this setup.
as a reminder the software for creating g-code to dispense solder paste
from
the .rpt file output of a KiCAD circuitboard
project is here:
https://github.com/hzeller/rpt2paste
note that it's superseded by
https://github.com/hzeller/rpt2pnp
which may be newer. the latter was confirmed to (apparently) correctly
process
the .rpt file from the project we'll likely dispense solder paste onto
first:
https://github.com/fitzdoingprojects/big_battery
i'll be gone for two weeks but if anyone wants to make progress on this
project
please write back and i'll help as much as i can.
-jake_______________________________________________
sudo-discuss mailing list
sudo-discuss(a)lists.sudoroom.org
https://sudoroom.org/lists/listinfo/sudo-discuss
10:27 p.m.
shoot, I was hoping to have the board 100% tested and working before
paste/pick'n'place more, but I've been pretty swamped the last two weeks.
I finished up the firmware today, and tested most of features. I'm pretty
confident the board is good to go, but theres a small chance some
components values could still change
On Tue, Dec 18, 2018 at 6:56 PM robb <sf99er(a)gmail.com> wrote:
holidayz...
On Tue, Dec 18, 2018 at 6:47 PM Jake <jake(a)spaz.org> wrote:
seriously no one had anything to say about any of
this?
On Wed, 5 Dec 2018, Jake wrote:
last night at sudoroom i did some things to get
solder paste flowing
from the
TAZ 3 3d printer.
i brought in a compact air compressor and adjusted its power switch to
click
off around 100 PSI (since it was failing to reach
its design pressure
in a
reasonable amount of time and we only need like
40-50PSI for solder
paste)
i'm not sure if it's still working because it cut out apparently due to
heat
the last time i was running it, but possibly just
because of duty
cycle. It
needs a fitting installed into the outlet to
plumb it to the solenoid.
Fittings are in the box behind the printer and there's teflon tape in
the
"tape" box on the shelves in sudoroom.
i installed a three-port solenoid on the 3d printer which plugs in
instead of
the extruder resistor / temperature sensor. It
contains a 47KΩ
resistor to
simulate a thermistor (to avoid a fault code) and
it wires the nozzle
heater
wires to the three-port solenoid (which is rated
at 24VDC matching the
printer's power supply)
I piped the 3-port solenoid to a syringe and mounted a syringe holder
on the
print head assembly in a reasonable place. A
syringe of solder paste
is in
the
sudoroom fridge and can be used. Needles of various sizes are in the
cardboard
box behind the 3d printer.
the air compressor's outlet needs to be plumbed to the flexible black
hose
going to the 3-port solenoid. The solenoid needs
to be mounted to the
print
head (a twist-tie should work).
unfortunately the 3D printer's firmware seems to be cycling power to
the
nozzle
resistor when a temperature is selected, probably because of PID
parameters,
so
we will have to look for a set of commands (or modified firmware) to
activate
the solenoid properly during the dispensing
process. This printer
doesn't
seem
to have wires for a print head fan, which is how we connected the
solenoid in
past implementations of this setup. There will
need to be a script or
modification to rpt2pnp to issue the right commands for this setup.
as a reminder the software for creating g-code to dispense solder paste
from
the .rpt file output of a KiCAD circuitboard
project is here:
https://github.com/hzeller/rpt2paste
note that it's superseded by
https://github.com/hzeller/rpt2pnp
which may be newer. the latter was confirmed to (apparently) correctly
process
the .rpt file from the project we'll likely dispense solder paste onto
first:
https://github.com/fitzdoingprojects/big_battery
i'll be gone for two weeks but if anyone wants to make progress on this
project
please write back and i'll help as much as i can.
-jake_______________________________________________
sudo-discuss mailing list
sudo-discuss(a)lists.sudoroom.org
https://sudoroom.org/lists/listinfo/sudo-discuss
19 Dec
19 Dec
2:07 p.m.
New subject: 3d printer solder paste dispensing at sudoroom using rpt2paste
I just kept it to myself, stencils are better.
Also, did you sacrifice the 3d printer to accomplish this?
On Tue, Dec 18, 2018 at 6:47 PM Jake <jake(a)spaz.org> wrote:
seriously no one had anything to say about any of
this?
On Wed, 5 Dec 2018, Jake wrote:
last night at sudoroom i did some things to get
solder paste flowing
from the
TAZ 3 3d printer.
i brought in a compact air compressor and adjusted its power switch to
click
off around 100 PSI (since it was failing to reach
its design pressure in
a
reasonable amount of time and we only need like
40-50PSI for solder
paste)
i'm not sure if it's still working because it cut out apparently due to
heat
the last time i was running it, but possibly just
because of duty
cycle. It
needs a fitting installed into the outlet to
plumb it to the solenoid.
Fittings are in the box behind the printer and there's teflon tape in the
"tape" box on the shelves in sudoroom.
i installed a three-port solenoid on the 3d printer which plugs in
instead of
the extruder resistor / temperature sensor. It
contains a 47KΩ resistor
to
simulate a thermistor (to avoid a fault code) and
it wires the nozzle
heater
wires to the three-port solenoid (which is rated
at 24VDC matching the
printer's power supply)
I piped the 3-port solenoid to a syringe and mounted a syringe holder on
the
print head assembly in a reasonable place. A
syringe of solder paste is
in
the
sudoroom fridge and can be used. Needles of various sizes are in the
cardboard
box behind the 3d printer.
the air compressor's outlet needs to be plumbed to the flexible black
hose
going to the 3-port solenoid. The solenoid needs
to be mounted to the
print
head (a twist-tie should work).
unfortunately the 3D printer's firmware seems to be cycling power to the
nozzle
resistor when a temperature is selected, probably because of PID
parameters,
so
we will have to look for a set of commands (or modified firmware) to
activate
the solenoid properly during the dispensing
process. This printer
doesn't
seem
to have wires for a print head fan, which is how we connected the
solenoid in
past implementations of this setup. There will
need to be a script or
modification to rpt2pnp to issue the right commands for this setup.
as a reminder the software for creating g-code to dispense solder paste
from
the .rpt file output of a KiCAD circuitboard
project is here:
https://github.com/hzeller/rpt2paste
note that it's superseded by
https://github.com/hzeller/rpt2pnp
which may be newer. the latter was confirmed to (apparently) correctly
process
the .rpt file from the project we'll likely dispense solder paste onto
first:
https://github.com/fitzdoingprojects/big_battery
i'll be gone for two weeks but if anyone wants to make progress on this
project
please write back and i'll help as much as i can.
-jake_______________________________________________
sudo-discuss mailing list
sudo-discuss(a)lists.sudoroom.org
https://sudoroom.org/lists/listinfo/sudo-discuss
3:52 p.m.
New subject: 3d printer solder paste dispensing at sudoroom using rpt2paste
On Wed, 19 Dec 2018, Morgan Allen wrote:
I just kept it to myself, stencils are better.
Also, did you sacrifice the 3d printer to accomplish this?
no the 3D printer is fine. i also tested the hot end and it's working fine.
the solder paste solenoid plugs in instead of the hot end so it may need to be
swapped but that's easy. the solder paste syringe holder doesn't interfere
with printing.
curious why you say stencils are better when you've never used a 3D printer to
dispense solder paste.
-jake
On Tue, Dec 18, 2018 at 6:47 PM Jake
<jake(a)spaz.org> wrote:
seriously no one had anything to say about any of
this?
On Wed, 5 Dec 2018, Jake wrote:
last night at sudoroom i did some things to get
solder paste flowing
from the
TAZ 3 3d printer.
i brought in a compact air compressor and adjusted its power switch to
click
off around 100 PSI (since it was failing to reach
its design pressure in
a
reasonable amount of time and we only need like
40-50PSI for solder
paste)
i'm not sure if it's still working because it cut out apparently due to
heat
the last time i was running it, but possibly just
because of duty
cycle. It
needs a fitting installed into the outlet to
plumb it to the solenoid.
Fittings are in the box behind the printer and there's teflon tape in the
"tape" box on the shelves in sudoroom.
i installed a three-port solenoid on the 3d printer which plugs in
instead of
the extruder resistor / temperature sensor. It
contains a 47KΩ resistor
to
simulate a thermistor (to avoid a fault code) and
it wires the nozzle
heater
wires to the three-port solenoid (which is rated
at 24VDC matching the
printer's power supply)
I piped the 3-port solenoid to a syringe and mounted a syringe holder on
the
print head assembly in a reasonable place. A
syringe of solder paste is
in
the
sudoroom fridge and can be used. Needles of various sizes are in the
cardboard
box behind the 3d printer.
the air compressor's outlet needs to be plumbed to the flexible black
hose
going to the 3-port solenoid. The solenoid needs
to be mounted to the
print
head (a twist-tie should work).
unfortunately the 3D printer's firmware seems to be cycling power to the
nozzle
resistor when a temperature is selected, probably because of PID
parameters,
so
we will have to look for a set of commands (or modified firmware) to
activate
the solenoid properly during the dispensing
process. This printer
doesn't
seem
to have wires for a print head fan, which is how we connected the
solenoid in
past implementations of this setup. There will
need to be a script or
modification to rpt2pnp to issue the right commands for this setup.
as a reminder the software for creating g-code to dispense solder paste
from
the .rpt file output of a KiCAD circuitboard
project is here:
https://github.com/hzeller/rpt2paste
note that it's superseded by
https://github.com/hzeller/rpt2pnp
which may be newer. the latter was confirmed to (apparently) correctly
process
the .rpt file from the project we'll likely dispense solder paste onto
first:
https://github.com/fitzdoingprojects/big_battery
i'll be gone for two weeks but if anyone wants to make progress on this
project
please write back and i'll help as much as i can.
-jake_______________________________________________
sudo-discuss mailing list
sudo-discuss(a)lists.sudoroom.org
https://sudoroom.org/lists/listinfo/sudo-discuss
4:03 p.m.
New subject: 3d printer solder paste dispensing at sudoroom using rpt2paste
I've this amazing ability to compare experiences, like 3d printing for
example, is generally of shit show of tweaking and battling cobbled
together machinery. So just the idea of doing battle with Yet Another
Attachment doesn't sound fun.
Then on a time scale of this, even a relatively complex stencil take 5 min
to raster on a laser cutter and it's done no matter how many boards you're
doing. Where as dispensing time grows linearly with each board. Also scales
with people. Got a lot of boards and people? Run off another stencil.
Printer does not scale. Fews like a solution looking for a problem to me.
On Wed, Dec 19, 2018 at 3:52 PM Jake <jake(a)spaz.org> wrote:
On Wed, 19 Dec 2018, Morgan Allen wrote:
I just kept it to myself, stencils are better.
Also, did you sacrifice the 3d printer to accomplish this?
no the 3D printer is fine. i also tested the hot end and it's working
fine.
the solder paste solenoid plugs in instead of the hot end so it may need
to be
swapped but that's easy. the solder paste syringe holder doesn't interfere
with printing.
curious why you say stencils are better when you've never used a 3D
printer to
dispense solder paste.
-jake
On Tue, Dec 18, 2018 at 6:47 PM Jake
<jake(a)spaz.org> wrote:
> seriously no one had anything to say about any of this?
>
> On Wed, 5 Dec 2018, Jake wrote:
>
>> last night at sudoroom i did some things to get solder paste flowing
> from the
>> TAZ 3 3d printer.
>>
>> i brought in a compact air compressor and adjusted its power switch to
> click
>> off around 100 PSI (since it was failing to reach its design pressure
in
> a
>> reasonable amount of time and we only need like 40-50PSI for solder
> paste)
>>
>> i'm not sure if it's still working because it cut out apparently due to
> heat
>> the last time i was running it, but possibly just because of duty
> cycle. It
>> needs a fitting installed into the outlet to plumb it to the solenoid.
>> Fittings are in the box behind the printer and there's teflon tape in
the
>> "tape" box on the shelves in
sudoroom.
>>
>> i installed a three-port solenoid on the 3d printer which plugs in
> instead of
>> the extruder resistor / temperature sensor. It contains a 47KΩ
resistor
> to
>> simulate a thermistor (to avoid a fault code) and it wires the nozzle
> heater
>> wires to the three-port solenoid (which is rated at 24VDC matching the
>> printer's power supply)
>>
>> I piped the 3-port solenoid to a syringe and mounted a syringe holder
on
> the
>> print head assembly in a reasonable place. A syringe of solder paste
is
> in
>> the
>> sudoroom fridge and can be used. Needles of various sizes are in the
>> cardboard
>> box behind the 3d printer.
>>
>> the air compressor's outlet needs to be plumbed to the flexible black
> hose
>> going to the 3-port solenoid. The solenoid needs to be mounted to the
> print
>> head (a twist-tie should work).
>>
>> unfortunately the 3D printer's firmware seems to be cycling power to
the
>>> nozzle
>>> resistor when a temperature is selected, probably because of PID
>> parameters,
>>> so
>>> we will have to look for a set of commands (or modified firmware) to
>> activate
>>> the solenoid properly during the dispensing process. This printer
>> doesn't
>>> seem
>>> to have wires for a print head fan, which is how we connected the
>> solenoid in
>>> past implementations of this setup. There will need to be a script or
>>> modification to rpt2pnp to issue the right commands for this setup.
>>>
>>> as a reminder the software for creating g-code to dispense solder paste
>> from
>>> the .rpt file output of a KiCAD circuitboard project is here:
>>>
>>> https://github.com/hzeller/rpt2paste
>>>
>>> note that it's superseded by
>>>
>>> https://github.com/hzeller/rpt2pnp
>>>
>>> which may be newer. the latter was confirmed to (apparently) correctly
>>> process
>>> the .rpt file from the project we'll likely dispense solder paste onto
>> first:
>>>
>>> https://github.com/fitzdoingprojects/big_battery
>>>
>>> i'll be gone for two weeks but if anyone wants to make progress on this
>>> project
>>> please write back and i'll help as much as i can.
>>>
>>> -jake_______________________________________________
>> sudo-discuss mailing list
>> sudo-discuss(a)lists.sudoroom.org
>> https://sudoroom.org/lists/listinfo/sudo-discuss
>>
> 
20 Dec
20 Dec
10:15 a.m.
New subject: 3d printer solder paste dispensing at sudoroom using rpt2paste
interested in making some smd Sudouinos once it's up and running. zero
bandwidth for software development rn on top of limited coding skills
myself.
On 2018-12-19 2:07 pm, Morgan Allen wrote:
I just kept it to myself, stencils are better.
Also, did you sacrifice the 3d printer to accomplish this?
On Tue, Dec 18, 2018 at 6:47 PM Jake <jake(a)spaz.org> wrote:
seriously no one had anything to say about any of
this?
On Wed, 5 Dec 2018, Jake wrote:
_______________________________________________
sudo-discuss mailing list
sudo-discuss(a)lists.sudoroom.org
https://sudoroom.org/lists/listinfo/sudo-discuss last night at sudoroom i did some things to get
solder paste flowing from the
TAZ 3 3d printer.
i brought in a compact air compressor and adjusted its power switch to click
off around 100 PSI (since it was failing to reach its design pressure in a
reasonable amount of time and we only need like 40-50PSI for solder paste)
i'm not sure if it's still working because it cut out apparently due to heat
the last time i was running it, but possibly just because of duty cycle. It
needs a fitting installed into the outlet to plumb it to the solenoid.
Fittings are in the box behind the printer and there's teflon tape in the
"tape" box on the shelves in sudoroom.
i installed a three-port solenoid on the 3d printer which plugs in instead of
the extruder resistor / temperature sensor. It contains a 47KΩ resistor to
simulate a thermistor (to avoid a fault code) and it wires the nozzle heater
wires to the three-port solenoid (which is rated at 24VDC matching the
printer's power supply)
I piped the 3-port solenoid to a syringe and mounted a syringe holder on the
print head assembly in a reasonable place. A syringe of solder paste is in
the
sudoroom fridge and can be used. Needles of various sizes are in the
cardboard
box behind the 3d printer.
the air compressor's outlet needs to be plumbed to the flexible black hose
going to the 3-port solenoid. The solenoid needs to be mounted to the print
head (a twist-tie should work).
unfortunately the 3D printer's firmware seems to be cycling power to the
nozzle
resistor when a temperature is selected, probably because of PID parameters,
so
we will have to look for a set of commands (or modified firmware) to activate
the solenoid properly during the dispensing process. This printer doesn't
seem
to have wires for a print head fan, which is how we connected the solenoid in
past implementations of this setup. There will need to be a script or
modification to rpt2pnp to issue the right commands for this setup.
as a reminder the software for creating g-code to dispense solder paste from
the .rpt file output of a KiCAD circuitboard project is here:
https://github.com/hzeller/rpt2paste
note that it's superseded by
https://github.com/hzeller/rpt2pnp
which may be newer. the latter was confirmed to (apparently) correctly
process
the .rpt file from the project we'll likely dispense solder paste onto first:
https://github.com/fitzdoingprojects/big_battery
i'll be gone for two weeks but if anyone wants to make progress on this
project
please write back and i'll help as much as i can.
-jake_______________________________________________
sudo-discuss mailing list
sudo-discuss(a)lists.sudoroom.org
https://sudoroom.org/lists/listinfo/sudo-discuss 
3 Jan
3 Jan
11:10 a.m.
New subject: 3d printer solder paste dispensing at sudoroom using rpt2paste
If there were a dedicated machine that didn't lose its ability to
absolutely position, I think it would be much better. Ultimately though I
think morgan has a point that fiddly tolerance will be more trouble than it
is worth.
I have a 3D printer I could assign to the purpose if someone were
interested in making a very rigid paste extruder for it.
- - - -
Weblog: http://adammunich.com
With great power comes great responsibility.
On Thu, Jan 3, 2019 at 10:59 AM <hol(a)gaskill.com> wrote:
interested in making some smd Sudouinos once it's
up and running. zero
bandwidth for software development rn on top of limited coding skills
myself.
On 2018-12-19 2:07 pm, Morgan Allen wrote:
I just kept it to myself, stencils are better.
Also, did you sacrifice the 3d printer to accomplish this?
On Tue, Dec 18, 2018 at 6:47 PM Jake <jake(a)spaz.org> wrote:
seriously no one had anything to say about any of
this?
On Wed, 5 Dec 2018, Jake wrote:
_______________________________________________
sudo-discuss mailing list
sudo-discuss(a)lists.sudoroom.org
https://sudoroom.org/lists/listinfo/sudo-discuss
_______________________________________________
sudo-discuss mailing list
sudo-discuss(a)lists.sudoroom.org
https://sudoroom.org/lists/listinfo/sudo-discuss
last night at sudoroom i did some things to get
solder paste flowing
from the
TAZ 3 3d printer.
i brought in a compact air compressor and adjusted its power switch to
click
off around 100 PSI (since it was failing to reach
its design pressure
in a
reasonable amount of time and we only need like
40-50PSI for solder
paste)
i'm not sure if it's still working because it cut out apparently due to
heat
the last time i was running it, but possibly just
because of duty
cycle. It
needs a fitting installed into the outlet to
plumb it to the solenoid.
Fittings are in the box behind the printer and there's teflon tape in
the
"tape" box on the shelves in sudoroom.
i installed a three-port solenoid on the 3d printer which plugs in
instead of
the extruder resistor / temperature sensor. It
contains a 47KΩ
resistor to
simulate a thermistor (to avoid a fault code) and
it wires the nozzle
heater
wires to the three-port solenoid (which is rated
at 24VDC matching the
printer's power supply)
I piped the 3-port solenoid to a syringe and mounted a syringe holder
on the
print head assembly in a reasonable place. A
syringe of solder paste
is in
the
sudoroom fridge and can be used. Needles of various sizes are in the
cardboard
box behind the 3d printer.
the air compressor's outlet needs to be plumbed to the flexible black
hose
going to the 3-port solenoid. The solenoid needs
to be mounted to the
print
head (a twist-tie should work).
unfortunately the 3D printer's firmware seems to be cycling power to
the
nozzle
resistor when a temperature is selected, probably because of PID
parameters,
so
we will have to look for a set of commands (or modified firmware) to
activate
the solenoid properly during the dispensing
process. This printer
doesn't
seem
to have wires for a print head fan, which is how we connected the
solenoid in
past implementations of this setup. There will
need to be a script or
modification to rpt2pnp to issue the right commands for this setup.
as a reminder the software for creating g-code to dispense solder paste
from
the .rpt file output of a KiCAD circuitboard
project is here:
https://github.com/hzeller/rpt2paste
note that it's superseded by
https://github.com/hzeller/rpt2pnp
which may be newer. the latter was confirmed to (apparently) correctly
process
the .rpt file from the project we'll likely dispense solder paste onto
first:
https://github.com/fitzdoingprojects/big_battery
i'll be gone for two weeks but if anyone wants to make progress on this
project
please write back and i'll help as much as i can.
-jake_______________________________________________
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8 comments
6 participants
participants (6)
-
Adam -
hol＠gaskill.com -
Jake -
John Fitz -
Morgan Allen -
robb