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The qrptech Samuel L Jackson and Jennifer Garner Effect

 

Q:? What's in your wallet?
A:? Nothing.? I spent it all on lab equipment and parts.

Last year I purchased, from Amazon, a 12" shear.? Warning.? This puppy is
heavy and not for those with knee and hip problems.? Get a couple of HS
football players to come over for milk and pie to help you out. Free
shipping.? Priced about $125 USD.? Brand is covered up by fixture.

A few days ago I took a hand held router and made a platform to securely
hold the PCB material for cutting.? No plans available.? One of a kind.
I have 20kg of PCB material gathered over 30 years from abcfab on ebay.
He used to be in NE, but may have now relocated to FL.

My plan to use as much as possible by the end of Sept.

People may be thinking, how does the village idiot know how large to
make a board for a project.? Well, he doesn't.? Just make sure it's
large enough.? Shear away the unused portion when done.? Some of the
left overs can be used for little critters.

Thanks to all of you for sharing what you use.? It helps the rest of
us save some time and money.? Time being the most important commodity.

Enjoy,

chuck, aa7fo

P3240002.JPG

 

Cuck, et al
?
Some may find this YouTube Video useful
?
"How To Make A Metal Project Enclosure"
?
?
?
?
 

I have a? way using the shear and a Harbor Freight brake that you might see in
some of the old projects.? Attached is the lower section of one in use.

thanks,

chuck

On 3/24/25 16:03, Pete WB9FLW via groups.io wrote:
Cuck, et al
Some may find this YouTube Video useful
"How To Make A Metal Project Enclosure"

3297.jpg

 

That's a nice-looking little rig Chuck, and a good-looking front panel too!
?
Dave
AA7EE
 

I have the brake and considered buying the shear.? How well does the shear work?? What thickness aluminum can it handle?? Is it good for PCB material?
Thanks !
Jim WB4ILP?

On Mon, Mar 24, 2025, 6:04 PM chuck adams via <chuck.adams.phd=[email protected]> wrote:
Q:? What's in your wallet?
A:? Nothing.? I spent it all on lab equipment and parts.

Last year I purchased, from Amazon, a 12" shear.? Warning.? This puppy is
heavy and not for those with knee and hip problems.? Get a couple of HS
football players to come over for milk and pie to help you out. Free
shipping.? Priced about $125 USD.? Brand is covered up by fixture.

A few days ago I took a hand held router and made a platform to securely
hold the PCB material for cutting.? No plans available.? One of a kind.
I have 20kg of PCB material gathered over 30 years from abcfab on ebay.
He used to be in NE, but may have now relocated to FL.

My plan to use as much as possible by the end of Sept.

People may be thinking, how does the village idiot know how large to
make a board for a project.? Well, he doesn't.? Just make sure it's
large enough.? Shear away the unused portion when done.? Some of the
left overs can be used for little critters.

Thanks to all of you for sharing what you use.? It helps the rest of
us save some time and money.? Time being the most important commodity.

Enjoy,

chuck, aa7fo
 

I use the PCB on all my PCB work.? It'll handle anything that I have from abcfab and
that is about everything he sells.? :-)

I have used it on 0.030 Al and it is rated for 1/4" max, but there is no way I am ever
going to need that.? I will buy an 18" brake in a month or two to go back to making
enclosures again.

You see the platform I made to be able to cut at 90.00000 degrees? OK, close.
There is a AA7FO secret.? Get some C clamps and use some boards to clamp
in place to hold the right edge and the opposite edge from the blade.
The torque generated is impossible to oppose by hand and the board will
rotate by a degree or two when the edge gets to the last part of the cut.
Been there.? Done that.

Here is the check, and I wrote this up decades ago.? Take a scrap piece of
PCB.? Cut all four edges in order or rotation, either CW or CCW. Then
measure the corners to see if they are indeed 90.0 degrees.? You've
got the technique down pat if you get close enough.? I know, it's an
OCD thing.? I attribute to two years in kindergarten and knowing
how to stay in the lines.? :-)

FYI

chuck,? aa7fo,? local sales rep for everything you need

The shear is a Vevor at $133.99 on Amazon, but they probably
all come from the same sweatshop.

If I make a video for youtube, will more than 6 of you watch it?

On 3/25/25 05:01, Jim WB4ILP via groups.io wrote:
I have the brake and considered buying the shear. How well does the shear work?? What thickness aluminum can it handle?? Is it good for PCB material?
Thanks !
Jim WB4ILP
 

I have also considered buying a combination slip/roll/break/shear for many projects.
?
Hey Chuck, I am also curious about that front panel. Very nice lettering and layout. Please tell us your secrets.
?
-Albert
KI4ORI
 

thanks for sharing the photo. i have been trying to figure out how to build a platform for shearing PCB, built two versions that didn't work as well as I would like. question: what did you use the router to do? i suspect something on the shear side of the platform but it is hard to see in the photo.
?
cheers, bill k7wxw
 

btw, if you really like to live dangerously, you can cut PCB with a micro table saw like this proxxon i bought for other projects: ?
?
easier to make square corners. also easier to lose a finger. proceed with caution.
?
cheers bill k7wxw
 

I have a band saw to cut boards, but it doesn't have the depth for large areas.
The hand held router allows me to cut boards to size and not take up a large
area in the garage for a table saw, and it's much cheaper.

The router came in real handy for the lip of the platform that butts up against
the left part of the shear mechanism.? The blade comes down against a steel
plate, the shiny thingy next to the right edge of the flat surface.

ASCII diagram:

-----------------------------
??????????????????????????? |
??????????????????? ---------
??????????????????? |
??????????????????? |
--------------------|

The missing section lower right is routed out.? If I remember
it required a dado blade for the table saw and I hated that
work.? Fingers are critical to moving and solder parts.

I'm not an expert at woodworking and at one time I had several large pieces
of equipment that were asking if I wanted to lose parts. Downsizing sucks,
but we can't take it with us.

I'll see if I can do a better set of photos.? Went to ACE hardware after
lunch today and got 3 1/2" nuts and bolts to bolt the shear down. That
will also further prevent any slight variation in board cutting.

cheers yourself,

chuck, aa7fo,? who also loves lower case from the unix days

On 3/25/25 16:08, bill K7WXW via groups.io wrote:
thanks for sharing the photo. i have been trying to figure out how to build a platform for shearing PCB, built two versions that didn't work as well as I would like. question: what did you use the router to do? i suspect something on the shear side of the platform but it is hard to see in the photo.
cheers, bill k7wxw
_._,_._,_
 

Thanks Chuck,
The Vevor is the one I looked at.? I can't imagine cutting .250 aluminum with it but should be OK for 1/16 or maybe even 1/8.
I'll watch the video and I think there would be many ithers interested.
Jim WB4ILP?

On Tue, Mar 25, 2025, 10:04 AM chuck adams via <chuck.adams.phd=[email protected]> wrote:
I use the PCB on all my PCB work.? It'll handle anything that I have
from abcfab and
that is about everything he sells.? :-)

I have used it on 0.030 Al and it is rated for 1/4" max, but there is no
way I am ever
going to need that.? I will buy an 18" brake in a month or two to go
back to making
enclosures again.

You see the platform I made to be able to cut at 90.00000 degrees? OK,
close.
There is a AA7FO secret.? Get some C clamps and use some boards to clamp
in place to hold the right edge and the opposite edge from the blade.
The torque generated is impossible to oppose by hand and the board will
rotate by a degree or two when the edge gets to the last part of the cut.
Been there.? Done that.

Here is the check, and I wrote this up decades ago.? Take a scrap piece of
PCB.? Cut all four edges in order or rotation, either CW or CCW. Then
measure the corners to see if they are indeed 90.0 degrees.? You've
got the technique down pat if you get close enough.? I know, it's an
OCD thing.? I attribute to two years in kindergarten and knowing
how to stay in the lines.? :-)

FYI

chuck,? aa7fo,? local sales rep for everything you need

The shear is a Vevor at $133.99 on Amazon, but they probably
all come from the same sweatshop.

If I make a video for youtube, will more than 6 of you watch it?

On 3/25/25 05:01, Jim WB4ILP via wrote:
> I have the brake and considered buying the shear. How well does the
> shear work?? What thickness aluminum can it handle?? Is it good for
> PCB material?
> Thanks !
> Jim WB4ILP
>

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