Re: BitX Volume Knob 3D Print File
In Cura one of the buttons on the left side when viewing the knob will be for scaling. It's been a while but as I recall there are tool tips for the buttons. It'll pop up a dialog which is self explanitory.
Vince.
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On 03/02/2018 05:09 PM, Michael Hagen wrote: Those Knobs were designed for the FemptoBit 2000 GHz Radio! Made for
Flea Hams!
It is all in scaling, Cura may think the units are MM?. In inches the
tuning knob is 1.2". The volume is 0.625". So if you don't see those
sizes your software is set up wrong. Some programs automatically
scale. Others printed the knobs and had the same problem. They fixed
it in Cura with settings. I use Simplify3D, so I can't help with Cura.
I am sure someone on this list uses Cura?
Hit YouTube also?
Keep going, I have 3 3D printers and it is a Hit and Miss every
print. Wait until you find yourself getting up in the middle of the
night to check how your part is going!
73's Mike
On 3/2/2018 1:18 PM, Roy Appleton wrote:
Michael, I'm a 3D printer noobie and literally just got a monoprice
printer this week. I've tried to load your two knobs stl files that
you shared into Cura to generate the necessary gcode. The first knob
(tuning) comes into Cura as a speck with zero minutes of run time. The
volume knob comes in with an error message saying that it was resized
and it also has zero minutes of run time. I've downloaded a stl file
from another source and it comes in correctly and shows what I guess
is a normal runtime of 1 hour and 58 minutes.
Your knobs where going to be my first attempt to print something
because they seemed small and useful for one of my BITX radio! :-))
Any suggestions?
Thanks,
Roy
WA0YMH
On Mar 2, 2018 6:55 AM, "Michael Hagen" <motdog@...
<mailto:motdog@...>> wrote:
I was asked yesterday for STL files for Knobs for Bit X.
This is the volume knob with the small shaft hole. You could
drill it out for 6mm pots?
--
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058 <tel:%28909%29%20918-0058>
PayPal ID "MotDog@..." <mailto:MotDog@...>
Mike@... <mailto:Mike@...>
--
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID "MotDog@..."
Mike@...
--
Michigan VHF Corp.
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Re: ubitx cw listening width modification
I have the Sotabeam cw DSP filter as a peripheral, using it on another rig, and it is good. ?I tried it on the uBitx and it is a definite improvement. ?However, I'm also going to try my old favorite, the Hi-Per-Mite SCAF from Four Square QRP Group (). I have one with for each of my rigs and love it. ?The excellent QCX transceiver uses it as well.
Howard K4LXY
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Re: BitX Volume Knob 3D Print File
Those Knobs were
designed for the FemptoBit 2000 GHz Radio!? Made for Flea
Hams!
It is all in scaling,
Cura may think the units are MM?.? In inches the tuning knob
is 1.2".? The volume is 0.625".? So if you don't see those
sizes your software is set up wrong.? Some programs
automatically scale.? Others printed the knobs and had the
same problem.? They fixed it in Cura with settings.? I use
Simplify3D, so I can't help with Cura.? I am sure someone on
this list uses Cura?
Hit YouTube also?
Keep going, I have 3?
3D printers and it is a Hit and Miss every print.??? Wait
until you find yourself getting up in the middle of the night
to check how your part is going!
73's Mike
On 3/2/2018 1:18 PM, Roy Appleton
wrote:
Michael, I'm a 3D printer noobie and literally
just got a monoprice printer this week. I've tried to load your
two knobs stl files that you shared into Cura to generate the
necessary gcode. The first knob (tuning) comes into Cura as a
speck with zero minutes of run time. The volume knob comes in
with an error message saying that it was resized and it also has
zero minutes of run time. I've downloaded a stl file from
another source and it comes in correctly and shows what I guess
is a normal runtime of 1 hour and 58 minutes.?
Your knobs where going to be my first attempt to
print something because they seemed small and useful for one
of my BITX radio! :-))
Any suggestions?
Thanks,
Roy
WA0YMH
--
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID "MotDog@..."
Mike@...
|
Mike,
Once the Arduino IDE opens up and you can see all the code, make sure you have the Raduino plugged into a USB port and then go to the upper tab named 'Tools" and choose "Board" then select Arduino Nano. Next, goto "Tools" and select "Port", now select your USB port you have the Raduino plugged into. Now you are ready to see if the code will compile. Click the check mark in the upper left hand corner and wait until it finishes saying 'compiling sketch'. If everything is okay it will report 'Done compiling'. If you have made it this far you are ready to upload the new firmware to your Raduino. Now click the --> button at the top of the window and it should upload the Sketch into the Arduino. When it's done it will say 'Upload complete' and you are good to go. Let us know how you get on.
Joel
N6ALT
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Re: Anyone need a genuine uBITX Raduino?
#ubitx
Hi Jim, May I ask what you chose to use in place of your Raduino boards??
Justin N2TOH?
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Stephen:? Glad you scored a couple of the cases.?? Have not seen a better case for the uBitX or BitX40. One of the best things about the case is way it is constructed.
Pulled down all of the cases from the shelf at Skycraft and saw the different configurations. The case I bought had no heat sinking, so I doubt (at least with my case) had any RF capability.? Guess there might have been several different variations/pieces of the IP Video Surveillance System that used the same case. Only a guess....
Bob, W4RJP
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Re: uBITX - U1 Getting Fried - possible cause
#ubitx
Should work fine, as suggested in post 42723 a few days ago:
? ? If really paranoid, perhaps add an 8 or 9v linear regulator (or string of diodes) to reduce Vcc into the TDA2822M.
Though I'd now tend to go for 6v, especially if you have a WX part.
Just because you're paranoid doesn't mean they aren't out to get you.
Jerry
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On Fri, Mar 2, 2018 at 01:13 pm, Paul Smith wrote:
How about stacking a few 1N4001s in series in the power rail to the?TDA2822 ? Not ideal but could provide a couple extra volts headroom and easier to install than a regulator.
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Re: TDA2822 ill treatment test!
On 3/03/18 10:01 AM, Bill KC5SB wrote: Here is what's left of mine.? Sorry for the large image.? Number on my board is 036/03. Batch 3 .. First we have heard that there was another batch in production! I will add your photo to the display of "damaged goods" on ubitx.net! Mike ZL1AXG -- Mike Woods mhwoods@...
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Re: BitX Volume Knob 3D Print File
Michael, I'm a 3D printer noobie and literally just got a monoprice printer this week. I've tried to load your two knobs stl files that you shared into Cura to generate the necessary gcode. The first knob (tuning) comes into Cura as a speck with zero minutes of run time. The volume knob comes in with an error message saying that it was resized and it also has zero minutes of run time. I've downloaded a stl file from another source and it comes in correctly and shows what I guess is a normal runtime of 1 hour and 58 minutes.?
Your knobs where going to be my first attempt to print something because they seemed small and useful for one of my BITX radio! :-))
Any suggestions?
Thanks, Roy WA0YMH
On Mar 2, 2018 6:55 AM, "Michael Hagen" < motdog@...> wrote:
I was asked yesterday for STL files for Knobs for Bit X.
This is the volume knob with the small shaft hole.? You could
drill it out for 6mm pots?
|
Re: uBITX - U1 Getting Fried - possible cause
#ubitx
I have some TDA2822 replacements ordered and will try them, but the adapter with the LM386 is working well, though the adapter will fall out of the socket if the rig is vibrated much. ?If I decide to keep it that way, I may need to figure out a better adapter.
Howard K4LXY
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Re: uBITX - U1 Getting Fried - possible cause
#ubitx
How about stacking a few 1N4001s in series in the power rail to the?TDA2822 ? Not ideal but could provide a couple extra volts headroom and easier to install than a regulator.
Paul ZS2OE
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Re: Broadcast band interference, uBitx
Since Nick's PC board?(VK4PLN) ?isn't available yet, I solved the problem using an inexpensive filter from QRPme. ?I inserted it in line where Nick did. ?Now I can work on the next uBitx challenge. Howard K4LXY 
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Re: TDA2822 ill treatment test!
Here is what's left of mine.? Sorry for the large image.? Number on my board is 036/03. 
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Re: uBITX - U1 Getting Fried - possible cause
#ubitx
Interesting developments.? Dodgy relays and IC's occur every so often due to the vagaries of batch testing but nothing will sink a new product design faster than a consistent QA problem at component level.? Some serious supplier vetting must happen to head off a possible long run issue. My 2 cents worth.
Paul ZS2OE
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I don't use a Mac, but I assume it's the same. Click File --> Open on the Arduino IDE menu. Navigate to the directory named ubitx_20 and click on it. Then double-click on the file named ubitx_20.ino. That should open and load all of the necessary files in their appropriate tabs.
Jack, W8TEE
From: Mike Lichtman via Groups.Io <tchrme@...>
To: [email protected]
Sent: Friday, March 2, 2018 3:21 PM
Subject: Re: [BITX20] uBit Software
Joel,
? I am new to this and haven¡¯t had time to read Jack¡¯s book that I just purchased.
I am using a Mac and did the steps you listed. Once Arduino is up, what steps are next to load the new
software to my uBitx. 73 Mike KF6KXG
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Joel,
I am new to this and haven¡¯t had time to read Jack¡¯s book that I just purchased.
I am using a Mac and did the steps you listed. Once Arduino is up, what steps are next to load the new
software to my uBitx. 73 Mike KF6KXG
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Re: B40 LM386 and ?B TDA2822 and that 470?F Cap
I agree, voltage to the TDA2822 should be reduced from 12v.
Especially if using a poorly documented clone.
However, that section of the datasheet showing supply voltages and load impedances
appears to be giving the maximum power it can deliver while maintaining under 10% distortion.
The load impedance at which the part would be destroyed is that which would exceed the 1 Amp peak
or 1 Watt max dissipation given in the Absolute Maximum section of the datasheet.?
These limits should not occur at normal listening levels.
I'm assuming the PTT pop is short enough that it won't be an issue.
Jerry, KE7ER
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On Fri, Mar 2, 2018 at 11:09 am, Stig oz8pz-oz8wsp-oz8wsr wrote:
Hi, when reading the datablad for the TDA2822 it only show using up to 9 Volt when using a speaker 8 Ohm.
If only using 4 Ohm speaker, then the max shown is 6 Volt. With 9 Volt and 8 Ohm speaker, max output
power about 800 to 1000 mWatt, and 6 Volt and 4 Ohm speaker about 500 mWatt.
I think the best would be, to use a 7809 power regulator for regulation of the voltage to 9 Volt, and use a 8 Ohm
speaker. The 7809 will reduce the max current to about 1.5 Amps when cold and reduced when the 7809 is
warm. And if no heatsink is put on the 7809, then it will protect the TDA2822 bye reducing the max current.
It is rigth, the datablad sayes max 15 Volt, but there are no examples using 12 Volt, max 9 Volt.
I will make a mod. to using 7809 in my UbitX, just flying over the UbitX. Hope this can help, not burning the
TDA2822. JMHO.
73, Stig, oz8pz
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Re: Add 16 I/O Lines to uBit or BitX
Here is a little PCB that
will add 16 more I/O Lines.
Runs on 4 I2C lines at 5V.?
1.750" x 1.100"? Has 3 Address lines, so you can run a Grundle
of them and
they won't interfere with
SI5351.
Can use Adafruit Library for
Microchip I2C Expander.
I have a few built and a few bare PCBs.
email me if interested.
73's
Mike, WA6ISP
?
--
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID "MotDog@..."
Mike@...
|
Pavel,
All the reports on blown TDA2822's thus far in this form had a logo of "WX" on them.
Can you describe the markings on your chips?
Thanks for the report!
Jerry
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On Fri, Mar 2, 2018 at 10:22 am, Pavel Milanes Costa wrote:
I was some time in the past in almost daily touch with the infamous TDA2822D/M as per my experience they do not like to go beyond 8V or you get it to much heat and one of the channels will fail or you will have it's brains all over the place... like you are seeing here (no plugging/unplugging in my application)
The circuits I fixed had 100uF on the outputs, so I doubt that lowering the 470uF output filter do much to mitigate this.
In vote to point that this IC are clones of lower quality and does not like to go over 8V or they to strange things like this.
Cheers Pavel CO7WT.
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Re: B40 LM386 and ?B TDA2822 and that 470?F Cap
Hi Arvo, Here's the datasheet for this variant:?? There is exsamples in the datasheet, but only using max 9 Volt and 8 Ohm. Stig
On Fri, Mar 2, 2018 at 11:09 am, Stig oz8pz-oz8wsp-oz8wsr wrote:
Hi, when reading the datablad for the TDA2822 it only show using up to 9 Volt when using a speaker 8 Ohm.
If only using 4 Ohm speaker, then the max shown is 6 Volt.
Hi, Stig.? Which manufacturer is showing max supply voltage of 6V for 4¦¸ load and 9V for 8¦¸ load?
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Joel Caulkins/N6ALT
