Subreddit rules check
r/mechanicalengineering
Can you promote here?
The rules prohibit promoting your own product here. You can still be genuinely useful in comments (which builds the account standing every other community checks), but any promotional post or link is likely to be removed and can earn a community ban.
From the rules · No advertising/self-promotion or direct product links — if you must discuss a product do it as a non-promotional self-post; low-effort and 'design this for me' posts are removed.
Links
Only specific link types are allowed (docs, papers, non-commercial). Commercial links are removal bait.
What this community rewards
Dominant post formats: showcase, discussion, question
Short, descriptive headline (showcase style: 'I simulated…', 'Is this possible to machine?'). Write in first person or neutral voice, include an image/diagram and a few paragraphs of technical context or data. Tone: constructive, curious, practical. Upvotes go to clear photos/sims, measurable results, and thoughtful career/salary threads; avoid low-effort or purely promotional posts.
Arriving in the local format matters: cross-posting the same text everywhere reads as tourist instantly. The wider method is in the Reddit playbook.
Classified mechanically from the community's published rules and recent top posts, last checked July 2026. Rules change and moderators have the final say: verify at r/mechanicalengineering's rules page before posting anything that matters.
Thread Otter checks this before every send
These profiles power the product: promo-banned communities never receive a promotional draft, drafts arrive in the local format, and a fact-check gate plus human pacing protect the account doing the talking.