Removing aluminum tabs

jbc
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Removing aluminum tabs

Post by jbc » Sun May 15, 2016 11:46 pm

I have been cutting .25" aluminum and have learned the value of having tabs (since I don't have a vacuum table).
But one thing that always bugged me was how to remove the tabs.
I've used a Dremel to remove them in the past and then followed up with a grinder.
I was fine with the solution until recently.

I designed my house numbers and cut them out on the always reliable SO3.
I didn't want to damage the edges of the numbers so started thinking about a jig saw.
That worked well as I could get into tight places and all, but not the most stable as you moved the jigsaw around the part.
A flat surface would help a lot.

So I started my search....
I found the Rockwell blade runner x2 ($100)
(Other folks might make a table to use with their existing jigsaw installed upside down but time is precious.)

It worked better than I expected. Being able to move the part instead of the jigsaw was a huge improvement.
Now I don't care about having too many tabs.

I hope others find this useful.

Jbc
Attachments
Rockwell and Numbers Adjusted.jpg
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jbc
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twforeman
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Re: Removing aluminum tabs

Post by twforeman » Mon May 16, 2016 1:54 am

Neat solution!
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xfredericox
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Re: Removing aluminum tabs

Post by xfredericox » Mon May 16, 2016 8:30 am

i already was thinking about buying a new jigsaw, so now you've given me another reason to do so and bolt the old one under my work table!

I do have a bandsaw, but cant get into a cutout obviously so this wouldbe a great addition
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WillAdams
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Re: Removing aluminum tabs

Post by WillAdams » Mon May 16, 2016 11:37 am

I’ve been considering this one: http://knewconcepts.com/power.php — though the manual version is more my style: http://knewconcepts.com/precisionMk3.php
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bharbour
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Re: Removing aluminum tabs

Post by bharbour » Mon May 16, 2016 11:43 am

I've used my scroll saw to do that.
No longer have a Shapeoko, but use a machine of my own design...
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MidCitySlim
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Re: Removing aluminum tabs

Post by MidCitySlim » Mon May 16, 2016 10:46 pm

Hey, cool font on those numbers... May I ask what it is?

Also, I just started dabbing in Al milling. Can you give me an idea with what bits and milling parameters you have been successful?

jbc
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Re: Removing aluminum tabs

Post by jbc » Mon May 16, 2016 11:03 pm

MidCitySlim wrote:Hey, cool font on those numbers... May I ask what it is?

Also, I just started dabbing in Al milling. Can you give me an idea with what bits and milling parameters you have been successful?
I basically went through the fonts I had in illustrator and chose the ones I wanted (four different fonts) and modified the '5' and the '4' to what I had in mind. The '5' was modified the most. I outlined all of the fonts and saved as a DXF so the font info was lost. Sorry.

As far as the feeds and speeds go I tried using other people's feeds and speeds and ended up with different results.
Other people here could help you more but I found using feeds and speeds calculators helped the most.
I use GWizard to get the feeds and speeds. You will be further ahead after getting to know one of those types of programs than trying to get good results from what others have done.

How many flutes? Diameter of bit? Material? How your machine responds? How hard do you want to push it?
Are you wanting a rough cut or finish? Slot or pocket?
I bought GWizard and once I got my machine setup in it and working how I like it it takes the fear out of changing tools/bits.
And thanks for the kind words on my design.

Jbc
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xfredericox
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Re: Removing aluminum tabs

Post by xfredericox » Wed May 18, 2016 9:19 pm

Well I made one.

Very happy with it :-)

http://www.manmademayhem.com/?p=1298
Visit my blog for updates on my current SO2/lasercutting/... projects.
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jbc
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Re: Removing aluminum tabs

Post by jbc » Wed May 18, 2016 9:47 pm

xfredericox wrote:Well I made one.

Very happy with it :-)

http://www.manmademayhem.com/?p=1298
Nice blog!
Yea I love this tab remover. My 'purchased unit' helps with making my 1/8" waste boards too as I don't have a table saw.

Also I liked what you did with the 360 degree light box you talked about on your blog site..

I came across an instructables http://www.instructables.com/id/Build-a ... ite-Resol/ connecting an Arduino to a stepper for timed rotations used with a camera to take pics which are then uploaded to 123Dcatch. Which of course turns your capture into a 3D model.
It was a little overly complicated but well done. I thought if you could just set the stepper to move every 'X' seconds you could coordinate taking pics with an app to capture everything on your iPhone.

I had a friend make a small Arduino sketch that lets you (through an LCD screen) tell the stepper how long to wait before moving, and how far to move (steps).
With all of that setup I can set another app on the iPhone, 'Fast Camera' to match the steppers actions to make an automated set of stop action frames.
Which is then uploaded to 123D catch.

I needed a light box to keep the light consistent. Your 360 light box will do nicely.
Thanks.
jbc
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xfredericox
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Re: Removing aluminum tabs

Post by xfredericox » Thu May 19, 2016 7:26 am

already on it :-)
Attachments
2016-05-19 09.22.36.jpg
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