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Have a great invention to help with gardening? Are you the self-reliant type that prefers Building It Yourself vs. buying it? Share and discuss your ideas and projects with other members.

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Old February 22, 2019   #316
Worth1
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While widow shopping I happened upon reasonably priced items I have been wanting.
I knew the site was there but for some odd reason I never looked for what I was wanting.
Metric thread pitch gauge.
ACME thread pitch gauge.
ACME center gauge.
This one allows you to grind and measuer cutting tools for ACME threads.
ACME threads transfer motion and loads repetitiously without wearing out fast.
The threads on your garage door opener if you have one are ACME threads.
ACME threads are on C clamps.
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Old February 22, 2019   #317
Worth1
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Folks I'm in the process of building an X-Y table for my drill press.
I have some of the materials available and just collecting stuff.
The more I think about it the more ideas and so on I get to make it.
One thing I have figured out is the more I think outside the box the more ideas I get.
Much of it will be made from that fine wood I got for free.
So it will be made with a combination of wood and steel.
One thing I want to do is be able to convert the lead screws from decimal to fractions.
One set will be 10 threads per inch the other 8 threads per inch.
The former will allow 0.100 inch per rotation of the dial the latter will allow 1/8 inch movement per one rotation of the dial.
With the dial marked out with 100 marks or graduations each graduation will be .001 of an inch or one thousandths of an inch movement.

Now the 8 threads per inch for fractions.
1/2 rotation is 1/16 inch, 1/4 rotation 1/32 of an inch, 1/8 rotation 1/64 inch and 1/16 rotation would be 1/128th of an inch movement.
Putting 16 graduations on the dial will allow that at 8 threads per inch.
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Old February 23, 2019   #318
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Finally figured out how to make a platform for my rotary table to sit on my drill press.
Had everything sitting in front of me.
Will take a few pictures along the way showing how to use the height gauge to lay out pieces and other things.
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Old February 23, 2019   #319
Worth1
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After measuring laying out lines center punching drilling reaming and threading it is almost finished.
It is tedious to say the least to get it right.
And square it is.
IMG_20190223_18439.jpg

IMG_20190223_4195.jpg

IMG_20190223_7537.jpg
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Old February 24, 2019   #320
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I honestly don't know what got me started on this today but the hard part is finished.
The one big hole up front is for when you lay it down to use it in the other direction.
IMG_20190223_25837.jpg

IMG_20190223_36557.jpg

IMG_20190223_4946.jpg

IMG_20190223_3816.jpg
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Old February 24, 2019   #321
Tomzhawaii
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Is that 316 stainless?
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Old February 24, 2019   #322
Worth1
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Is that 316 stainless?
2 X 5/8 good quality aluminum.
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Old February 24, 2019   #323
Worth1
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Is that 316 stainless?
I ordered 4 12 foot bars of this stuff for a project at work and it was the off fall from that project.
Now that I looked it up it is 6061 "aircraft grade" aluminum.
My fastener choices were 1/2x20 TPI bolts and 5/16 18 TPI Allen head fasteners.
The fine thread may be over the top but fine threads have more tinsel strength.
Each hole in steps.
Scribe lines.
Center punch at intersection of lines.
Place on drill press and center drill.
Drill small pilot holes.
Worked my way up to the F size drill for the 1/16 18 TPI fasteners.
Counter bored and finished bore for the fastener head with a reamer.
On the 1/2 20 TPI I continued on to the final tapping size of 29/64.
Started my taps in the drill press to make sure they are square and then finish by hand.
Lots of taking apart and putting back together before final drilling and assembly.
I only had one shot at it and it is very rigid.
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Old February 24, 2019   #324
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Yes, the quality in your work shows. It is painstaking work. But will last a few decades. My father made me a welding table in the 70's. My brother in law cherishes it. And it looks like the day it was made.
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Old February 24, 2019   #325
Worth1
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Quote:
Originally Posted by Tomzhawaii View Post
Yes, the quality in your work shows. It is painstaking work. But will last a few decades. My father made me a welding table in the 70's. My brother in law cherishes it. And it looks like the day it was made.
Thanks I try my best.
Here is a demonstration of it on it's back drilling 100 evenly spaced holes.
Cranking the handle clockwise and the sector arms counter clockwise.
Each time moving the handle 18 holes in the 20 hole section of the indexing plate.
Think sausage grinding plates or just about anything you wanted.
Even cut ring grooves.

.IMG_20190224_44408.jpg
Closeup of sector arms.
Here is where you would pull the pin rotate the handle clockwise and put the pin in the left sector arm.'
Drill hoke.
Then move the sector arm counter clockwise and repeat.
IMG_20190224_11604.jpg

IMG_20190224_2396.jpg

Last edited by Worth1; February 24, 2019 at 01:30 PM.
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Old February 24, 2019   #326
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Using the degree wheel 5 X 72 = 360.
Start at 0 move to 72 then 144, 216 and last 288.
5 holes.
Just turn the crank and you get a circle.
That is parallax you see in the middle picture.
IMG_20190224_9462.jpg

IMG_20190224_26228.jpg

IMG_20190224_35955.jpg
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Old February 24, 2019   #327
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Absolutely useless trinket.
IMG_20190224_5921.jpg

IMG_20190224_23263.jpg
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Old March 2, 2019   #328
Worth1
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Yesterday I showed a pictuer of the 100 hole experiment and dividing head to a guy that does AutoCad.
His shock was clear as crystal when he realized it was all mechanical and not CNC.
He then replied how fast it could be done with CNC and the math was built into the program.
What he didn't understand was the math at all and replied, yeah but with CNC and so on.
I feel this thread dovetails perfectly with this forum.
Reason why is we are all growing our own food, cooking, fermenting, canning and so on.
Not dependent on others for our well being so to speak.
We are all kindred spirits in many ways.
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Old March 5, 2019   #329
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Worth,
That Autocad and CNC are great. Still, it can't beat your way of doing things. I get the modern , however it loses it's craftmenship. I'm with you.
Tom
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Old March 5, 2019   #330
PhilaGardener
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+1, beautiful craftsmanship, Worth!
It is a real pleasure to follow your projects!
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