TB1 - Elmer's OC Reversing valve

[Tin Falcon]

Ok guys I am finally pushing forward on the reversing valves. Making the valve blanks was pretty straight forward. turn the material to diameter, drill the center chamfer the side and part off. I then machined the pot chuck and faced off the back side I did 16 just for extra margin.
Today I finally got to the interesting part milling the slots. Ir i was just going to do one or two the obvious choice would have been to set them up on the mill. but I had to be different. the first thing I did was make an indicator holder. The other thing was make a spindle nose protector that doubles as an indexer the index stop is attached to the indicator holder. As for milling I set the hand piece for the dremel in a QC boring bar holder. Once the contraption was in place i centered the end mill in the hole of one of the parts then lowered the holder the required amount and set up my thread stop as a cross slide stop . So I pop in a blank in plunge cut .020 crank the cross slide between the stops and repeat to depth. Then rotate the lathe spindle 180 and do it again.
Tin

 

[Tin Falcon]

Guys I was planning on making the studs for the reversing valve the mini lathe was the tool of choice.
to make a long story short on or about 7-29 a power sure took out the control boards on my mini mill and mini lathe. I did not discover this untill 7-4 .
I can send 4- 40 screws in lue of the studs and the pieces for the ball and handle stem or I can finish . This next week I will be working long hours and out of town a couple days.
My apologizes for procrastinating, not meeting the dead line and setting a poor example.
My intentions were to have the assembly done for all.
I plan on meeting up with Brass machine next week end to exchange what parts I can. Sorry for any inconvenience. please pm or email your wishes.
Tin

 

[Powder keg]

We all get Busy Tin. No need to apologies. Just finish mine up when you get a chance.

Later, Wes

 

[Brass_Machine]

Finish up Tin. This isn't a race, but a fun thing to be involved in. Wes is still waiting for screws... I am having some personal problems that have tied me up as well. I have to finish up... I hope to tomorrow or Monday. I think we all understand that life gets in the way sometimes. If we make it stressful, then it isn't fun anymore.

Know what I mean?

Eric

 

[joe d]

Tin: finish the parts when you finish the parts. THEN I'll build. There is no-one hanging over our shoulders with a deadline for this, it's for fun!

Joe

 

[Jadecy]

Don't feel any pressure from me. I just sent a message because I thought I might have missed something. I haven't had time to keep up with the board this summer. This is supposed to be for fun! There is no hard date that I am aware of so just do what you can when you can! ;D

 

[Tin Falcon]

Thanks for the support guys.
I did manage to get out in the shop and push things forward a bit. I wanted to get the studs out of the way but things happen . anyway I did grind a new boring bar from a HHS bit. This is a first I have a similar one but this is the first one i have ground like this. i then counter bored the valve disks did a little more machining on the or chuck and counter bored a small handful of 4-40 brass thumb nuts one for each engine and a couple extra. So I feel like I am moving forward again. thanks for the patents. An I would be amiss without posting at least one photo
Tin

 

[CrewCab]

Just a comment from an "outsider" as I'm not involved in the build .......... but ......

imho ........... I think you guys are doing a first class job but ...... the teamwork and support between you all is just as good as the engineering ..... well done ... :bow:

CC

 

[Powder keg]

So, Did you get your lathe and mill problem fixed? That stinks to have them both go out, at the same time.

Wes

 

[Tin Falcon]

well here is an idea of how things are going to look . I put the parts together with a 4-40 by 3/4 screw I was going to trim it to 5/8 but do not have the mini screw cutters available at this moment. another pebble in the road of life. I was surprised it actually feels pretty good no noticeable slop i think the spring is keeping thinks centered it could actually work this way with out making studs. . this thing only turns 90 degrees once in awhile . I still need to make and attach the handles.

Wes :no problem not fixed the South Bend was fortunately not affected. Only the little modern import stuff with the electronic motor controls. I was planning on turning some 1/8 stock down to .116 to make the studs and take advantage of the higher spindle rpm on the little lathe.
Here is the pic of the assembled parts

Tin

 

[Powder keg]

Sweet!!!

 

[Tin Falcon]

left the house for work at 4 am this morning got home about 10:30 tonight needless to say no machining on the parts today . And no time to work on the circuit boards.
Tin

 

[Tin Falcon]

Just a follow up note. The mini mill and mini lathe were finally back up and running sometime in September/October .A tech at work helped me out and about $10 in electronic parts fixed things.
The valve assemblies were finally all delivered IIRC sometime in February in a kit form (Some assembly required. )Several moths late.
The TB was a great experience.
May do it again once the mill cnc project is done.
Tin

 

[Tin Falcon]

A photo of everything together
Tin