/diy/ - Do It Yourself

Thats the thing, really anything is doable, its just if you want to invest the time to do it. I made parts for my paintball guns and rifles. Wheel spacers for an atv, parallels, tap handle, vice, vice stop, tapping guide, bench block, emery cloth handle, and a plethora of breech loaded air guns that fit onto my blow off nozzle. I wouldn't try a firearm suppressor nor a bowl for smoking "tobacco". You teacher has seen it done, and will know what your up to shortly after your first couple of cuts. Just make something that pertains to your other interests. If you don't care about what your making, it will just end up a half finished hunk of shit in the bottom of your box.

>>404557
Have you made
>a millstop aka vice stop
>a spring loaded tap guide
If no, make both of those, they will come in handy.

>>404605
>spring loaded tap guide
I just looked up what that was. I've never used one before. I always just chucked up a countersink and kept light pressure on the quill. I might give it a try.

One im most interested in though would be projects that will utilize both machining and welding. In my welding class we arent really going to make any projects. All we have done so far is weld up test plates. There have been rumors we might get to build a walking bridge for the city but nothing definite.

>>404686
Your instructor should have a print, if not, I'll post one tomorrow. The little hole on the top of all the taps? That's what it's for is the tap guide. You put it in the mill or lathe to keep your tap straight, just like you mentioned with the countersink. Also, never do that in industry, you'll get your shit slapped.

try making a stirling engine. Try finding a simple one and make it on a a smaller scale then try making more advanced ones.

if you haven't already make yourself a nice hammer or something

>>404557
how did you get the handle on the tap wrench in your picture?

>>407179
there is an internal threaded post i made, i also cut a flat in the middle of it for the set screw on top. The flat however isn't in the blue prints i drew up for myself. It was an after thgouht

>>407218
thats a nice piece of turning at first glance i did not see the threads. nice job

>>407218
did you CNC it? and how did you do the split in the pin with a saw?

>>407318
No, every thing was done on a manual engine lathe.

The only part done on a manual mill, was on the stem making the 4 slits with a 3/32 mill saw. I also had to single point turn the external threads on the stem because i didnt have a 3/4 16 die. Luckily i had a 3/4 16 tap to make the internal threads on the nut.

>>407588
I lied, i also drilled and reamed the hole for the handle in the stem

>>407218
Please for the love of god take a class on how to draw prints. It took me a good 2 minutes to figure out what the fuck you were doing.

>>407711
actualy i find it quite clear

you did center the back and right? to center the tap on the mill or lathe?

>>407863
clear to me too

nice work

>>407866
>>407863
That's because you're not used to actual ANSI standard prints. He's missing so much stuff on it.

>>407711
This. That drawing doesn't even deserve to be called drawing.

>>407921
>>407925
and yet it has everything needed to make his project
you don't need proper prints for everything

>>407921
>>407925
you are probaly not people who make the stuff are you? i mean you have got everything you need it's not crowded with useless information.

honestly if you couldnt make it with this drawing i dont think you should be standing behind a lathe, or any machine for that matter.

>>407711
The only parts that are not dimensioned are the radiused ball ends on either end of the handle. I didnt put a dimension on them because they don't need it. Its purely for aesthetic purposes so its a non critical dimension, hence its being silly to put a dimension on it.

And you could argue the relief cut for the threads, but the size of the relief cut is determined by the size of your threads. Being at least .030 inches smaller than the minor diameter of the threads, so you do not get a feathered thread that could break. So again it would be silly to dimension that as well. There isn't a single piece of information missing that would make it impossible to make

And even then this was purely a guideline, and i did not follow it strictly. For instance i believe the overall length of the handle was 6 inches, and i made some other tweaks on the fly.

Anyway enough on the print. Here is something i haven't posted on here before. Its a meat tenderizer i made in class.

Again keep your suggestions on any welding/machinist projects i can do

>>407957
i uploaded the wrong picture. Here is the correct one

>>407218
I dont have a picture of the internal post on the handle but here is something else i made as a proof of concept with an internal threaded post.

The threads on this little puzzle were single point cut, since using a die would be impossible to get the threads to match.

>>407961
that is a realy fun concept for a puzzle indeed.
alot of people around our school weld a bonfire "box" (for a lack of a better word) or an small oven or stove. maybe you could weld a weather vane. realy if you mastered welding and the lathe and milling machine the possibilities are great. have you ever done some grinding on the bench grinder?

>>407961
Heh, one of my classmates made one of those. Just shorter. I think he cut hexes on both end too to make it look like an average bolt.

Pretty cool seeing your little projects. I may steal some of them to do when I am in between assignments for school.

Ah yeah. Make one of these. Mainly a mill project, but whatever. Also, you need to get two indicators I guess for it.

Here's a product vid of a similar one in action.

http://www.youtube.com/watch?v=0-D1gNYPi3A

Couple of guys in the shop have made mill tramming indicators like this, and it really saves a lot of time.

>>407933
>you are probaly not people who make the stuff are you?
I am. If I was handed that print I'd throw it at the guy who handed it to me.

> i mean you have got everything you need it's not crowded with useless information.
No, it's missing 4 dimensions, the only indication it's round is the thread call out, it's drawn as an assembly instead of separately and dimensioned in that state which is unacceptable. I can't even make a proper print with so little information.

Was it good enough for him specifically? Maybe. Does it deserve to be called a proper print? Fuck no.


>>407933
>honestly if you couldnt make it with this drawing i dont think you should be standing behind a lathe, or any machine for that matter.
I could, but it wouldn't be right because I have to guess several dimensions.

>>408072
Uhh, you realize that this print was made for his own benefit right? Like, he didn't need a lot of the information, because he knew it already. It's not like he drew the print for others to make. That's like criticizing someone for having unintelligible notes. Shit wasn't meant for others in the first place.

You could make me some metric screwcutting gears for a South Bend 9B...

>>408072
It has every dimension neeede to make it. If you can't tell that it's a round part from the drawing maybe you should quit and go back to school.

i made this bolt action pen in my machine shop it is 3 seprat parts

>>408124
>It has every dimension neeede to make it.
See pic

>If you can't tell that it's a round part from the drawing maybe you should quit and go back to school.
>the only indication it's round is the thread call out
Thread call out is gone. This is now a flat part. Even with that, the thread could be the only round feature.

>>408157
My bad thought you were referring to the drawing at >>407588
Still shape of the ball ends doesn't matter.
The real issue is the threaded portion part down the shaft. Thats a weak point that will eventually fail.

>>408165
No, that one's fairly good except for some stacking tolerances

>>408072
mate sometimes things are not done strictly according to rules because sometimes you should not whine about it but just make it. if it takes longer to define the round part than it takes to make one and you only need to make one then why the fuck bother?

>>408561
Professionalism. It just looks like shit.

bump

Make yourself a nice tool box. Weld it together and machine some nice handles or trays or whatever you want. I might be able to find some blueprints somewhere.

I can tell from your machining you are building yourself a nice skill base. If your welding is as good as your machining you will be able to build anything you would ever want pretty much.

>>408072
>I am. If I was handed that print I'd throw it at the guy who handed it to me

you sound like an absolute joy to be around.

What kind of jobs can you get if you know machining AND welding skills? Are there jobs that use both?

>>410884
The job shop I work at has 2 welders/machinist.
They take turns on the jobs that require welding and get paid more

>>410732
Engineers and drafters get payed fucktons of money to make prints and do them right. If they have the audacity to hand me an incomplete print that wastes my time, the company's time and their time well then excuse me for being a bit angered. The teachers at my college were notorious for this. Some were so bad I was asked to remake them by one of the good ones.

>>410962
no reason to get your panties in a twist over a guy who made a drawing for his own personal use, so it didnt need to be as detailed.

Anyway, don't let the autists who frequent 4chan get you down. Any real machinist would know what your drawing meant and would know that the dimensions that were excluded are not essential to the function of the part and are purely aesthetic. Like i said before the drawing was for his own use so why the hell does he need to clarify to himself its a round part? Im fairly certain he knows since he designed it.

bump for interest