Author Topic: Rat Gat (Read 61062 times)

Cutter · « **Reply #220 on:** November 09, 2015, 05:16:10 PM »

Here\'s the model for the front legs and feet.

I going to thread both ends of the tube, connect

that way. Haven\'t started the rear leg yet, but it will

have some vertical adjustment and at a straight angle back.

Not compound like the front.

Cutter · « **Reply #221 on:** November 10, 2015, 03:26:42 PM »

I changed the foot pad diameter from 2\" to 2-1/2\".
No function, just looks better to me.

Roller · « **Reply #222 on:** November 11, 2015, 06:46:47 PM »

Truly a challenge for a manual machinist, I\'ll see if I can do it!

Frank

joboxxer · « **Reply #223 on:** November 13, 2015, 01:44:42 PM »

Back to the bolts. Are there threads in the top of the .400 hole? And is that a smaller hole at the bottom of the .400 hole? What size spring do you use on the hammer shaft?

Cutter · « **Reply #224 on:** November 13, 2015, 03:31:54 PM »

Joboxxer,

The threads on top are 3/8-24 , the flat bottom hole 5/16

Lee Spring Co. # LC 040D 15 M

(.04 dia. 1-1/2 long music wire)

I have a sample bolt that\'s been around the country

twice, it should be back next week if that would help

send me your mailing address

Cutter · « **Reply #225 on:** November 14, 2015, 10:54:28 AM »

She\'s in training

Cutter · « **Reply #226 on:** November 15, 2015, 07:07:13 PM »

I started on the front feet today, got the top side of one,
next one tomorrow.

Cutter · « **Reply #227 on:** November 15, 2015, 07:09:08 PM »

A little trouble posting this time

Cutter · « **Reply #228 on:** November 16, 2015, 08:04:05 PM »

Threaded 1-1/16 - 18 with single point thread mill.
The tubing is 1\" ID

Cutter · « **Reply #229 on:** November 19, 2015, 09:04:22 PM »

Close enough

Dave · « **Reply #230 on:** November 20, 2015, 03:37:28 PM »

Simply amazing!

Cutter · « **Reply #231 on:** November 21, 2015, 04:04:41 PM »

Next, the upper bracket model, less threads.
I\'m threading it, just tired of drawing

Dave · « **Reply #232 on:** November 21, 2015, 07:54:12 PM »

To put things into perspective, how long did it take to draw that part up and how much machining time to cut it?

Sparky_NY · « **Reply #233 on:** November 23, 2015, 06:01:07 AM »

6000 hours of educational time leaning to drive the cadcam and the cnc machine, 10 minutes to draw, 10 minutes to machine LOL

Its the old story of how people with a LOT of experience make things look easy.

Cutter · « **Reply #234 on:** November 23, 2015, 11:18:37 AM »

Thanks Sparky, but at 75 I\'ve slowed down considerably.
If supplied a 2D print it would take under one hour, but this
is all about what I want so I keep making changes.
I think one day for the machining process.
I\'m in the 55th year of my apprenticeship, thatâ€™s 110,000 hrs.
OK, enough of my bull shit.
Here\'s a stick drawing , surfaces created from those entities

Sparky_NY · « **Reply #235 on:** November 23, 2015, 11:28:14 AM »

Pretty obvious from the quality of the stuff you make that this isn\'t your first rodeo.

I\'m watching and learning AND appreciate the free apprenticeship !

Cutter · « **Reply #236 on:** November 23, 2015, 04:38:46 PM »

This is where it can get a little hairy.
52 layers/parts with 617 surfaces.
The older members will recognize the modified bulldog

Cutter · « **Reply #237 on:** November 24, 2015, 02:19:28 PM »

Now, there\'s a pair of legs

Roller · « **Reply #238 on:** November 24, 2015, 06:53:35 PM »

I think Betty Grabel had better legs, although she had only two! LOL

Sparky_NY · « **Reply #239 on:** November 25, 2015, 06:36:38 AM »

Cutter,

How are you machining all those nice evenly spaced holes on those legs and the barrel shrouds you make? Rotary 4th axis with tailstock?

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Author Topic: Rat Gat (Read 61062 times)