Injector

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Trainman4602
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Re: Injector

Postby Trainman4602 » Sun Sep 03, 2017 1:25 am

I think Amazon has them beat
ALLWAYS OPERATING MY TRAIN IN A SAFE MANNER USING AUTOMATIC AIR BRAKES

jma1009
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Joined: Mon Apr 27, 2015 5:18 am

Re: Injector

Postby jma1009 » Mon Sep 04, 2017 5:27 am

Hi Greg,

Your pic of your 'D' bit 9 degrees tapered reamer looks to be considerably greater in degrees than 9. What is the OD and what length is the taper?

I have not found any engraving bits of small enough taper but I do use them sometimes to remove some of the metal before using my injector reamers. The engraving bits have a tendency to chatter because one side has a different taper to the other in effect providing rake on the cutting edge.

Cheers,
Julian

Greg temp
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Joined: Fri Aug 25, 2017 9:16 am

Re: Injector

Postby Greg temp » Mon Sep 04, 2017 5:13 pm

Hi,Julian,yre wright,the angle is steeper than 9 degrees I made a technical error.it came out at 14degrees,put it down to being too late at night,the shank size is 1/4inch,
That one is now in the bin,remade two (the correct angle this time) last night,
Thanks for the heads up on the deburs,
It's better to try and fail than not to try at all,

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Trainman4602
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Location: New Jersey

Re: Injector

Postby Trainman4602 » Mon Sep 04, 2017 5:16 pm

Greg
Where are you getting all these angles from?
ALLWAYS OPERATING MY TRAIN IN A SAFE MANNER USING AUTOMATIC AIR BRAKES

Greg temp
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Joined: Fri Aug 25, 2017 9:16 am

Re: Injector

Postby Greg temp » Mon Sep 04, 2017 7:39 pm

I got the working drawings for a 40oz injector I need to make a 9deg and a 13 deg Dbits,I just stuffed up setting my compound slide on the first one I made,but still a good training excersise
It's better to try and fail than not to try at all,

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Builder01
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Location: Erie, PA

Re: Injector

Postby Builder01 » Mon Sep 04, 2017 8:58 pm

If you are reading the numbers on the top slide angle graduations, or, compound, make sure you understand the difference between the angle on the side of what you are machining, and "included angle". Also, make sure your tool is exactly on center height, or, the surface you machine will not be a true taper.

David

Greg temp
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Re: Injector

Postby Greg temp » Mon Sep 04, 2017 10:06 pm

The problem I had was I just miss read the increments on the compound slide,and the tooling is dead center,
It's better to try and fail than not to try at all,

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Builder01
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Re: Injector

Postby Builder01 » Mon Sep 04, 2017 10:18 pm

Okay, keep us posted on your progress. As you can tell by the number of posts, many are quite interested.

David

Greg temp
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Re: Injector

Postby Greg temp » Tue Sep 05, 2017 5:11 pm

Update on progress,,,D reamers and depth guages done,
Just waiting for the brass to be delivered,will start on the body in the mean time,
It's better to try and fail than not to try at all,

Greg temp
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Joined: Fri Aug 25, 2017 9:16 am

Re: Injector

Postby Greg temp » Sun Sep 17, 2017 3:10 am

Update for those interested,the body is made ,start on the cones this week,
I will post some pictures once I can get them small enough insize to post
It's better to try and fail than not to try at all,

Greg temp
Posts: 23
Joined: Fri Aug 25, 2017 9:16 am

Re: Injector

Postby Greg temp » Mon Sep 18, 2017 2:29 am

The complete body,just the nuts to make then start on the cones.
Attachments
IMG_20170918_191803.jpg
The body
It's better to try and fail than not to try at all,


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