Controlling the engraver is done via LaserPecker App on your smartphone/tablet over Bluetooth. Don’t be put off by the low rating of the App in Play Store or App Store. People leave bad ratings when they encounter bugs but never update their ratings when the bugs are fixed.
The LaserPecker mobile app is updated frequently. The descriptions here may be slightly outdated. The latest version at the time of writing this article was v3.81 (Android).
Android Users
You generally install the LaserPecker app from Google Play Store and rely on Play Store auto update to stay current.
Roll Back: if you are experiencing a new bug in the latest LP app, you can uninstall it, and then download and install a previous version from https://m.apkpure.com/laserpecker/com.hingin.l1.hiprint/versions
Note that as you uninstall your LP app, you will lose your imported fonts, images/Gcode, and engraving history.
Android App – Why Require Location Permission?
To Android users, the App requires Location Permission because Google made it that way, not that LaserPecker wants to know where you are. For your reference, read this Android development documentation here. To summarise, it’s because by allowing an App to perform a Bluetooth scan, it can potentially identify your location. To force-make users aware of this risk, any App that needs to scan for BLE (Bluetooth Low Energy) devices is forced to request Location Permission. This is different to manually doing a Bluetooth scan in your phone’s Bluetooth settings.
Offline Engraving
Most people don’t realise that, once an engraving job is started, it is OK to quit the app or move your phone out of Bluetooth range. You will lose the timer and progress info, (L1/Pro only: also unable to carry on multi-pass engraving if you chose to engrave more than 1 pass,) but you are free to walk away with your phone/tablet while waiting for the engraving to finish.
Without the app, you can pause/resume an ongoing job by tapping on the circle button on the back of your L1/Pro or the Play button on the back of your LP2. Hold that button to cancel the job.
Access to Internet
Only required during initial registration and the first use of a fresh install of the LP app.
Registration & Safety PIN
The registration process changed in late Dec/2021, from Android app v3.74 and iOS app v???. This section has been updated for the new registration process.
The initial registration process works as below:
- Enter your email address and get a verification code sent to it. At the same time, the code is sent to the app in the background to be verified against.
- Wait for the verification email. Check your Spam/Junk folder. Do not repeatedly click on “Send Code” button in the app. You will end up getting multiple verification emails, but only the last one is valid. So it does not decrease your wait time but makes it worse.
- Once you get the verification code and set a safety PIN for your engraver, the safety PIN and the unique ID of your engraver are stored in your account on LP’s server as well as locally on your phone. (Previously, the safety PIN was stored in the engraver itself, which sometimes caused issues.) You can register multiple LP devices under one account. This is a very useful feature for users who have multiple LP engravers.
- When you start a fresh install of the LP app, you only need to log in once to retrieve all safety PINs for all your devices.
If you transfer your device to a different user, you do not need to disclose your account or safety PIN unless you want to. The new user can go through the registration process like you did and set their own safety PIN.
App (Mode) Settings
I’ll omit some options that are self-explanatory.
G-CODE Preview
- On: During the preview, the laser will trace the actual paths of the graphic. For example, a star.
- Off: During the preview, the laser will trace the rectangle that can contain the graphic. This is the same as the preview in Bin, Gray and other modes.
The third axis
This option can only be enabled when a 3rd axis is connected to an LP2/3.
To use the 3rd axis addon for engraving, you must enable it in app settings and select the desired mode.
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