A fork of HelixScreen that supports the U1's toolchanger and multiple ACE units
This is a fork of prestonbrown/helixscreen. Everything upstream HelixScreen does, this does — see upstream's README for the full feature tour. What follows is only what this fork adds on top, for the Snapmaker U1.
Upstream is merged in regularly, and U1 work goes back upstream where it fits.
Stock HelixScreen models the U1 as a four-head parallel toolchanger. This fork adds multiACE: one or more Snapmaker ACE units feeding the same machine, shown as separate units with their own slot counts, and a filament path that traces which spool actually feeds which tool.
Per-unit drying comes with it — live temperature and humidity, material presets, and auto-dry with its own thresholds:
The U1's firmware brokers pairing itself and delegates one step to the printer's screen: the approval tap. Replacing the stock screen means nothing answers, so Orca and the phone app hang at "requesting connection" until they time out.
This fork answers it:
Deny goes on the wire too, so a refused client fails immediately instead of waiting.
Details in docs/devel/LAN_CLIENT_AUTHORIZATION.md.
Upstream's release pipeline needs secrets a fork does not have. This fork ships its
own U1 workflow that cross-compiles, packages and publishes a working build from a
u1-v* tag — plus a fork-aware installer, so the printer is offered this repo's
releases as updates rather than upstream's.
On the printer, over SSH:
curl -fsSL https://github.com/physicsG/helixscreen/releases/latest/download/install-fork.sh | shThat is a thin front-end for upstream's installer — platform detection, service setup, backup/rollback and SHA256 verification are all the same code path. It only pins the repo to this fork and skips upstream's CDN, which would otherwise serve upstream's binary.
sh install-fork.sh --update # update in place
sh install-fork.sh --version u1-v0.99.116 # pin a specific build
sh install-fork.sh --local helixscreen-snapmaker-u1.zip # from a downloaded archiveSSH on the U1: Settings > Maintenance > Root Access, or the firmware-config web
page. Credentials are root / snapmaker.
| Branch | What it is |
|---|---|
develop/snapmaker-multiace |
Default. The U1 + multiACE work. Releases are cut from here |
main |
A clean mirror of upstream main — never committed to directly, so upstream merges stay conflict-free |
Release tags are u1-v<version> (e.g. u1-v0.99.116), deliberately not v*:
upstream's tag would start a release pipeline this fork cannot complete.
Features, supported printers, configuration, the user guide and troubleshooting are all upstream's and unchanged — start at upstream's README and the User Guide.
Bugs in U1 or multiACE behaviour belong here. Anything that reproduces without a U1 is better reported upstream.