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/h/ - Hobby Autism

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Onion domain: http://ylcjjrqko7pgobnvzreemm565ea3oj3c7rfqqb4x4twmay6hafv54mid.onion/

File: 1573956382225-0.jpg (394.65 KB, 1200x800, 3:2, DSC_2474s.jpg)

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

File: 1573956382225-2.png (20.86 KB, 905x371, 905:371, Unradiused.PNG)

File: 1573956382225-3.png (129.48 KB, 1131x622, 1131:622, AR18 Flat V1.PNG)

 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.

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

 No.1100

>>1099
cut your hair you fuckin hippy holy FUCK

 No.1101

>>1100
the lady who cuts my hair has been on vacation back to vietnam ;_;

 No.1102

>>1099
lookin smoov budy, any malfs, misf, or milfs?
how u likin sights?

 No.1103

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

 No.1104

>>1102
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

 No.1105

>>1104
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

 No.1106

>>1105
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)

 No.1111


 No.1112

>>1111
holy digits. holy comment.

 No.1115

>>1104
stop deleting thangz

 No.1116

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


 No.1117

>>1115
I reported a duplicated kaki and it was (rightfully) deleted, just line this shit thread should be

 No.1118

>>1117
fak u you rulecuck piece of shit

 No.1122

>>1116
>picture of duder
>labeled shorkcel

 No.1123

File: 1666132237942.jpg (2.22 MB, 3280x2460, 4:3, 1665711074345-3.jpg)

>>1122
no this is dudder

 No.1125

File: 1666139310766.png (27.67 KB, 500x250, 2:1, Oekaki.png)

no we are all duddicus

 No.1126

>>1123
same fucking person you face blind retard he just has a mustache in that one pic

 No.1127

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

 No.1129

>>1127
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

 No.1136

>>1125
iata

 No.1137

>>1126
this is a terrible yim
cease immediately

 No.1146

>>1129
I was thinking more of a vintage car restoration kinda thing

 No.1147

>>1146
no i hate cars they're a fucking massive time and money pit they're the worst thing ever shitty shitty hobby.

 No.1151

make a sawed off shotgun next

 No.1155

>>1151
cool post

 No.1165

looking to get blasting and parkerizing done this weekend

 No.1166

>>1165
reported to the feds for thingken about blastin up in a public park

 No.1167

do you make knives and stuff too

 No.1168

>>1167
been making hammers and going on dates lately

 No.1169


 No.1170

is that really shorkcel I'm confused

 No.1171

>>1170
don't be confused

 No.1172

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

>>1167
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

 No.1173

>>1171
sometimes you just need a bigger stronger guy to make you feel safe and less confused…

 No.1174

>>1172
woah
this spigga MATHS

 No.1175

>>1174
you cant say that word thats OUR word

 No.1178

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

 No.1179

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

 No.1181

>>1179
you just handbuild a 'shitty' one, then you use that one to make a better one
p. basic tbh

 No.1183

>>1179
use your friends lathe

 No.1184

>>1179
use a drilldo

 No.1194

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

 No.1195

>>1194
sounds fucking hot

 No.1196

>>1195
the parkerizing is in the range of 190F, the rust bluing ofc is at 212F

 No.1198

>>1194
wont that just evolve it into magneton?

 No.1199

>>1198
just tap b during the evolution and it will stop…

 No.1222

update?

 No.1223

>>1222
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
Sorry

 No.1225

>>1223
you will ping me in next weeks nfl thread if any progress is made

 No.1226

>>1225
ok, i'll try and get you something to look at in the next week



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