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/h/ - Hobby Autism

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Onion domain: http://ylcjjrqko7pgobnvzreemm565ea3oj3c7rfqqb4x4twmay6hafv54mid.onion/

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File: 1573956382225-1.jpg (843.88 KB, 1200x800, 3:2, DSC_2474sPERSPECTIVE.jpg)

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 No.214[View All]

Just wanted to post some preliminary progress regarding my AR18 build
i dont have any access to any examples of these because i live in a commie faggot state, but i've started to at least make progress on constructing an upper receiver flat.

im doing this with some knowledge ive deduced and some simplifications as such:
- an AR18 tubular receiver has internal dimensions of 1.25" x 1.25"
- an unbent flat will be approximately 5 inches across
- relative proportions from pictures will be close enough for function

using that i performed progressive rudimentary visual perspective correction for image 1 using GIMP and gridlines to get image 2. i then imported it into autocad and corrected for any rotation. i then visually mapped out the outline to get a general proportions. with this done i scaled the drawing to my 'known' dimension of 5 inches and examined the other dimensions. I then went through them and rounded up or down to units that are convenient to imperial system, and radiused select corners

This would be an iterative process of refining the flat given i dont even have access to an actual rifle. the only dimensions i can think of that will require being really close would be overall length and width. Width i know isn't going to be accurate, given that when bending sheet metal flat dimensions like that wont directly translate to the finished dimensions, but it think its a good starting point. length would be easy enough to change.

257 posts and 84 image replies omitted. Click reply to view.


cut your hair you fuckin hippy holy FUCK


the lady who cuts my hair has been on vacation back to vietnam ;_;


lookin smoov budy, any malfs, misf, or milfs?
how u likin sights?


File: 1666016679218.png (6.86 KB, 500x250, 2:1, Oekaki.png)

1 malfunction, related to >>892
kaki of ejection port cutout, exagerated for effect
basically in battery, theres enough room for the charging handle to walk out because that diameter of the circle i cut was too large
something that happened while shooting was it walked out in front, then when you shot it would shove the handle into the slot and get stuck
i had theorized this might happen, solution was going to be to add a c-clip to the handle so that there was some material still below the sheet metal lip so it wouldn't walk


oh and the sights suck lol. lot of glare, aperature a bit too big. just a strip of sheet metal so i could redo it without too much trouble but… really dont want to lol


ez fixes, not bad for garage ar18 at all, jealous af
gonna at least paint sight? be huge prob if had to use it
at least get gf to steal nail polish


ive got some finishing sandpaper and dremel work i wann do, then i'll blast it, parkerize it, and paint the outside. im gonna use a black hammertone (to hide flaws. also interestingly the SAR80 which is basically a direct offspring came with mottled paint coating by default)



holy digits. holy comment.


stop deleting thangz


File: 1666114935939.jpg (5.02 KB, 97x121, 97:121, shorkcel.jpg)


I reported a duplicated kaki and it was (rightfully) deleted, just line this shit thread should be


fak u you rulecuck piece of shit


>picture of duder
>labeled shorkcel


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no this is dudder


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no we are all duddicus


same fucking person you face blind retard he just has a mustache in that one pic


shorkcel what's your new /h/ project now that this gun is done


Do it again. Better design for tools. Compatibility with off the shelf BRN-180 bolt carrier group, gas system components. Then I would sell or release the plans for free– sell build kits consisting of the trunnion, receiver flat, sight wings, gas block, furniture etc etc
also thinking of trying a clean sheet design




this is a terrible yim
cease immediately


I was thinking more of a vintage car restoration kinda thing


no i hate cars they're a fucking massive time and money pit they're the worst thing ever shitty shitty hobby.


make a sawed off shotgun next


cool post


looking to get blasting and parkerizing done this weekend


reported to the feds for thingken about blastin up in a public park


do you make knives and stuff too


been making hammers and going on dates lately



is that really shorkcel I'm confused


don't be confused


File: 1667365558720.png (168.14 KB, 318x454, 159:227, ClipboardImage.png)

not yet but i'd like to make at least one knife
i bought this a while ago
and my coworker (who is literally fucking blind as a bat, 20/250 vision) made a really nice lookin tanto knife, so i'd like to pick his brain


sometimes you just need a bigger stronger guy to make you feel safe and less confused…


this spigga MATHS


you cant say that word thats OUR word


i degreased parts today
will try to get things blasted and phosphated sometime tomorrow


engineerbro, how to make a lathe without using another lathe?


you just handbuild a 'shitty' one, then you use that one to make a better one
p. basic tbh


use your friends lathe


use a drilldo


fucked up my parkerizing, even ended up getting some of the solution on the grill (its a manganese-phosphate soution) so that shits probly NOT good
literally accomplished nothing except messing up my sandblasting. i'll alternately rub it down with 120 grit aluminum oxide media and a toothbrush, then i'll brush it with some warm acid to try and induce an even layer of rust
then boil it in water. should convert the oxide layer into magnetite
can be done multiple times


sounds fucking hot


the parkerizing is in the range of 190F, the rust bluing ofc is at 212F


wont that just evolve it into magneton?


just tap b during the evolution and it will stop…




Zoomer quit at work so now I'm doing the work of 4 people. Made some really neat simulation tools at work but no progress here


you will ping me in next weeks nfl thread if any progress is made


ok, i'll try and get you something to look at in the next week

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