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U225X / ENGINEERING UNWARRANTED

Printing Bushing Considerations

Public record / CHAT-0273 / Revision EXPORT-03

PUBLIC RECORD
U225X

A conversation-specific public summary of printing bushing considerations, distilled from the supplied export. The detailed excerpts remain available in the released note file.

STATUSRECOVERED / SPECIFIC NOTECLASSIFICATIONSYSMATERIALCHAT EXPORT / BUILD & TOOLSDATE2026.04.30

TECHNICAL NOTES

Conversation-specific knowledge extracted from the printing bushing considerations discussion.

EXTRACTED KNOWLEDGE / HOW-TO FROM CONVERSATION

QUESTION / CONTEXT: Do you see any issues with printing that size of bushing

  1. FDM printers usually make holes print undersized
  2. On a 0.4 nozzle, your .7495" ID (~19.04mm) could easily come out 0.010–0.020" tight
  3. If this needs to slide on a 3/4" shaft, it may need:
  4. ID modeled slightly oversized (+0.005 to +0.015")
  5. OR drill/sand after printing
  6. *With a 0.4 nozzle:
  7. ~3 perimeters = ideal
  8. 2 perimeters = workable but weaker

SPECIFICATION

SourceSupplied ChatGPT export
CategoryBuild & Tools
Conversation1 user turns / 1 assistant turns
Attachments6 references detected
Public detailExtracted knowledge + excerpts

DEVELOPMENT HISTORY

2026.04.30EXPORT-04Matched to the supplied export; key guidance is surfaced separately and the raw transcript remains unpublished.