Share tips you have come across

Use an old heavy coffee cup to hold your small hand tools.

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WOW. I gotta catch up on these!!

This all points out that mechanical stuff like mounting and connecting devices and acquiring and using tools is one of the hardest things, especially for newbies.

I've spend more time and effort on the mechanical considerations of This Project than I have on code. SO FAR..

http://www.ebay.com/itm/321985115125
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Sealing plastic bags.

Anti static bags. Take your least used (crappiest) soldering iron tip, adjust temperature to 500'C, clean tip. Lay a bag (to be sealed) on a flat surface with a silicone baking sheet under the bag. Place a metal ruler at the point of required sealing. Draw the iron tip at ~1 second per inch along the straight edge.

For zip lock freezer bags, turn the temperature down to ~400'C.

You will have to experiment with speed for your conditions. .

No measuring.
Making inserts, panels etc. to fit the inside of a box or enclosure.

Attached is a PDF which discusses the process of making an inside template.

Attached is the PDF file with all the instruction images.

You can use 3Ms correction and cover-up tape in this process.

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Making inserts.pdf (580 KB)

I guess there are others who have the same crappy soldering iron holder.

Attached is the 1:1 PDF for the sides and the back which you can use to cut out your own inserts.
I just eye balled the front piece.

Soldering Iron side pieces.jpg

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SolderingIronInsert.pdf (1011 Bytes)

Hi,
At work I have to calibrate a device that requires its Program ROM to be removed and a calibration ROM fitted, just to cal the device.
The Cal ROM is plugged and unplugged about 100 times a year, so to protect its bendable/breakable leads we have it fitted into a machined DIP socket and we then plug the machined socket into the ROM socket.
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Unfortunately we cannot do it to the Program ROM due to PCB clearance problems so the Program ROM is removed and fitted with the appropriate tools

So if you do not have ICSP provision on your custom PCB and need to swap out your 328 to a UNO PCB to program it , fit it with a machined DIP socket to protect its bendable pins.

150120173143rr.jpg

Tom… :slight_smile:

Tom The sacrificial socket is a good idea.

I remember getting EPROMS back from the field with #22AWG wire soldered to broken pins ??? Good old days.

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I'll catch up soon....

Attached is a PDF discussing making holes for mounting components in panels.

Attached is the PDF file with all the instruction images.

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Round Holes in Panels.pdf (580 KB)

Links to previous threads:

Test Lead Stuff

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Small Wire Segments

Two2.jpg

Heat Shrink Ideas

Heat Shrink.jpg

Making up DuPont connectors

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IDC Cables

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Managing Your Wiring

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LarryD: Test Lead Stuff

I was meaning to post the dupont multimeter probes I made like that to this thread. Mine are dedicated leads instead of having the connectors like yours. I find those super useful and like how easy they are to use when breadboarding a circuit, rather than having some large probe handles with thick wires getting in the way.

pert:
I was meaning to post the dupont multimeter probes I made like that to this thread. Mine are dedicated leads instead of having the connectors like yours. I find those super useful and like how easy they are to use when breadboarding a circuit, rather than having some large probe handles with thick wires getting in the way.

In some situations, I use connectors made by the JST people.
Doing this helps keep the number of dedicated cables down to a minimum.

Using the male header end, it’s great to plug your cable into the test equipment then straight into a breadboard.
Not having to hold test leads or use alligator clips on breadboards is very convenient.

Cables.png

Hi Larry,

PDF discussing making holes for mounting components in panels.

Where did this come from? Any sources for those tools?

I just bought a step drill to make 7/8" holes for large pilot lights. A greenlee chassis punch is now up to $50 or so :-(

I'll grab some of the rest of this!

terryking228: Hi Larry, Where did this come from? Any sources for those tools?

I just bought a step drill to make 7/8" holes for large pilot lights. A greenlee chassis punch is now up to $50 or so :-(

I'll grab some of the rest of this!

These are tools I use for chassis work. I put the PDFs together to present the topics.

I got the Body Reamer from Banggood. Must have tool. I think this one.

Hole punch from http://www.firemountaingems.com/itemdetails/h203955tl Brad bits from Leevalley. Unibit and Diamond Needle Files from eBay, not sure which seller. Other tools at local Bolts Supply houses.

Greenlee. ???

Reminds me of the old tube days and making metal chassis for circuitry. ;)

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We all do it now and then.
If you have a few extra plugs and a spare hour, make up a Voltage/Current test cable.
This speeds up testing and gets rid of those ugly alligator clips.

Meters.jpg

Meters2.jpg

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PCB vice.
You may have to tweek the clamps with a file to adjust the fit.

These are obviously for low profile SMD component boards before headers are soldered. :wink:

These are handy to hold your PCBs while you solder components on the board.
At $7.00 they are reasonably priced.
The two holes in the base are for securing the fixture to a heavier sub-surface.

PCB vice.

Board Vice.jpg

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LarryD:
PCB vice.
You may have to tweek the clamps with a file to adjust the fit.

These are handy to hold your PCBs while you solder components on the board.
At $7.00 they are reasonably priced.
The two holes in the base are for securing the fixture to a heavier sub-surface.

PCB vice.
Board Vice.jpg

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Getting ready to make one of these. Just need to get in the garage and do it.

What do you have for putting solder paste on small pads?

tinman13kup:
Getting ready to make one of these. Just need to get in the garage and do it.

What do you have for putting solder paste on small pads?

I was going to make a solder paste dispenser but found this one, bought two.

The designer said he was coming out with a new version in 2017.

Retired but new one coming.

The problem I have is the needle is 4x bigger than the pad I'm trying to paste. I've resorted to using a toothpick and pluck some out of the end of the needle and dab it where I want it. I've been playing with a lot of 0402 smds and am trying some 0201s on my next board. They don't need much paste. Many of the ic's (LQFP) I'm using really don't want much solder.