For the bom, I use a excel spreadsheet
The way I go about it is to upload the bom to mouser, that is generated by the Ecad in a format such as
Mouser pn| qty
Schematic Components are created that contain info like, mfr pn, mouser pn, digi-key pn etc
That gets loaded using the cut and paste bom tool
It creates a project. I use the customer part number field for ref. Designators, they get saved to a database. You can then export the project bom to excel, download and massage it to eliminate the fields that you do not need. Change the font size to 7, change field widths so that you can print or generate a bom in landscape PDF to fit on a page. I use bullzip as my printer which creates a pdf
I have been doing smt since the 80’s I could write many tips, where to start, tools, solder, technique, install replace, lots of ground to cover, anything specific you need to know?
The way I go about it is to upload the bom to mouser, that is generated by the Ecad in a format such as
Mouser pn| qty
Schematic Components are created that contain info like, mfr pn, mouser pn, digi-key pn etc
That gets loaded using the cut and paste bom tool
It creates a project. I use the customer part number field for ref. Designators, they get saved to a database. You can then export the project bom to excel, download and massage it to eliminate the fields that you do not need. Change the font size to 7, change field widths so that you can print or generate a bom in landscape PDF to fit on a page. I use bullzip as my printer which creates a pdf
I have been doing smt since the 80’s I could write many tips, where to start, tools, solder, technique, install replace, lots of ground to cover, anything specific you need to know?
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Here is an example of the BC-1 AFE BOM (derived from) the Mouser shopping cart link to order the parts
https://www.mouser.ca/ProjectManage...jectGUID=e92aefb6-b381-4e90-8aac-81538a5e4ec9
This one is for Samual Groners low noise lab grade pre-amp, its smt using precision MELF resistors, the cats a$$ 🙂
https://www.mouser.ca/ProjectManage...jectGUID=3a263434-d02b-4f65-859b-ffa8831c6f0a
If you have no file representing your BOM to upload to Mouser, you create a new Mouser project and use "add to project" function.
Part of an EE's job is proper documentation, know one really liked it because its clerical, word processing, no real hands on fun.
You know you have good documentation if know one asks questions which are not answered in the docs.
Enjoy
https://www.mouser.ca/ProjectManage...jectGUID=e92aefb6-b381-4e90-8aac-81538a5e4ec9
This one is for Samual Groners low noise lab grade pre-amp, its smt using precision MELF resistors, the cats a$$ 🙂
https://www.mouser.ca/ProjectManage...jectGUID=3a263434-d02b-4f65-859b-ffa8831c6f0a
If you have no file representing your BOM to upload to Mouser, you create a new Mouser project and use "add to project" function.
Part of an EE's job is proper documentation, know one really liked it because its clerical, word processing, no real hands on fun.
You know you have good documentation if know one asks questions which are not answered in the docs.
Enjoy
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Most resistors are 0805 except for 1/2 and 1 W (2010's). Caps are 1206/1210/1806 , most values can be sourced in multiple packages.
LED's are too many to list , so I made the pads to do 1.5mm to 3.5mm. As long as the Vf is 1.8 to 2.1V , this will determine the CCS's
resistor value. I simulate with a modern 2V red now. Actually , the led's are the most critical component ,as they determine the Ic of the whole
circuit. Most 2V LED's Vf varies between 1.7-2V in the 2mA range , this affects the sensitivity of the servo .
Cascoded VAS LED's can be any color - cool !
Semi's are TSOP-6 for the duals - bigger 1mm spacing. SOT-23 for all small singles (FJV992/1845).
SOT-89 are the big 1.5A VAS devices.
3 pin-connector to Vbe out on leads. They do this on the Wolverine , works best.
Whatever LED we get , we will have to test it at 12V-2mA (4.7K) to get it's forward Vf. Recalculate the CCS emitter resistor to get
in the ballpark of 1.8mA (3.6mA total) for the LTP's. Both Spook and Hellraiser are similar and all the other currents will fall in line.
A slight tweak of "VAS Ic" will set the main current to 3.8-4mA by "bleeding" extra current through the Hawksford LED's.
Infidel is like the Wolverine , 2Q CCS sets current (resistor dependent). Main VAS CCS has the trimmer - set and forget !
Symasui is fully dependent on the 2Q CCS , I put the trimmer there.
Offset on the Hellraiser/Spooky is servo'ed , trimmer on the LTP's for the Symasui/Infidel , they also had the classic DC NPO cap.
All the IPS's use the standard WIMA 4.7uF/50V poly cap for input.
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I guess I will have to attempt it. I'll start with text file to narrow down what part I actually will use , port that to the Mouser stuff.
I won't get accused of not finishing what I started.
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Whoa , Libreoffice is 1/3Gb ... complete with the kitchen sink ! I don't do google.
Libre portable version is 197mb , not too bad. Still a lot of bloat to see a single XLS file.
I'm used to programs , like my PDF editor ... does it all at 20mb. Plenty of HDD space (10TB) , but
still don't like "bloat".
Edit - Libreoffice portable installs at 798mb ! Kitchen sink and bathtub (whole bathroom) , too.
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Libre portable version is 197mb , not too bad. Still a lot of bloat to see a single XLS file.
I'm used to programs , like my PDF editor ... does it all at 20mb. Plenty of HDD space (10TB) , but
still don't like "bloat".
Edit - Libreoffice portable installs at 798mb ! Kitchen sink and bathtub (whole bathroom) , too.
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pretty simple stuff to make a Mouser project that you can share
that's a good idea to narrow down your parts to the exact one you intend to use 🙂
Cheaping out on s/w tools, ecad, word, disk space, these days? making life difficult for yourself?
What's to steal, your IP, you're putting your design info out in the public domain anyways.
That's right finish your homework.
No MS office, even a really old version is good enough, good luck without it 🙂
pdf editor substitutes for MS word or excel, not likely 🙂
good thing I posted the pdf of the BOM
I don't do google? another puzzle to me, google no worse than anyone else? It's not Meta
What are you doing for documents? Put out a pdf for distribution, but to create?
that's a good idea to narrow down your parts to the exact one you intend to use 🙂
Cheaping out on s/w tools, ecad, word, disk space, these days? making life difficult for yourself?
What's to steal, your IP, you're putting your design info out in the public domain anyways.
That's right finish your homework.
No MS office, even a really old version is good enough, good luck without it 🙂
pdf editor substitutes for MS word or excel, not likely 🙂
good thing I posted the pdf of the BOM
I don't do google? another puzzle to me, google no worse than anyone else? It's not Meta
What are you doing for documents? Put out a pdf for distribution, but to create?
My foxit editor will make a full pictured fancy PDF , it's actually about 55mb installed. I''m not a "luddite" , but I do like to see
what is going on my HDD's (below). I also monitor any software for excess chatter and do not allow updates. I have a (Beeatch PC)
for that BS. I'm glad I am not a typical PC user ....pity the foolz.
I do like Libreoffice , loads fast and no chatter.
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Attachments
OpenOffice is faster and smaller, and have a math editor for equations. Just in case.
And for documentation in general you might like go into the '.markdown' files, pretty cool, flexible and lite stuff.
Yes , <1 sec load time. Smaller , more features,
You can omit features you don't want - cool.
It seems like modern software expects 3.5gb speed. Poor people that just have a regular SSD.
I thought a SATA SSD was fast 2 years ago. Glad I have NVME.
You can omit features you don't want - cool.
It seems like modern software expects 3.5gb speed. Poor people that just have a regular SSD.
I thought a SATA SSD was fast 2 years ago. Glad I have NVME.
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OpenOffice has a preload option (QuickStarter), default is on if I remember right. Obvious it made my laptop startup slower, so turned it off.
Attaching it directly to the heatsink worked perfectly on the Slewmaster. I saw they had to adjust the tempco to make it work being directly connected to the output devices. Likely a cure needing a problem.
Too quick , sort of a "lead tempco". HS is a "lag tempco". (they) did not build slewmasters... he he !!
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