# Collection thread：U1 Top-Cover Mod **URL:** \ **Category:** U1 Featured Showcase Collection\ **Tags:** Modification, U1, hardware\ **Created:** [November 22, 2025, 6:55am UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429 "2025-11-22T06:55:38Z")\ **Posts on this page:** 20\ **Page:** 3
**Author:** ![Simon\_Zhi](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/simon_zhi/32/30470_2.png) [@Simon\_Zhi](https://forum.snapmaker.com/u/Simon_Zhi)\ **Post date:** [May 27, 2026, 9:59am UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/43 "2026-05-27T09:59:43Z")
This is for plugging in a USB drive to copy the machine’s local time-lapse videos. ---
**Author:** ![mvall](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/mvall/32/32086_2.png) [@mvall](https://forum.snapmaker.com/u/mvall)\ **Post date:** [May 27, 2026, 2:18pm UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/44 "2026-05-27T14:18:41Z")
Ok thanks. The “Add-on” pinout as well, not just the USB port? I’m wondering if the “Add-on” pinout can be used to trigger a fan or other but I don’t see any specs on it. ---
**Author:** ![hssahin](https://avatars.discourse-cdn.com/v4/letter/h/bcef8e/32.png) [@hssahin](https://forum.snapmaker.com/u/hssahin)\ **Post date:** [June 3, 2026, 7:44pm UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/45 "2026-06-03T19:44:30Z")
I did everything you said, it activated, the RPM shows no problem, but my only issue is that the PWM speed adjustment doesn’t work. When I plug it in, the fan stops, and when I remove the blue PWM indicator, it only works at one speed. Do you have any information about this? Can you help me? ---
**Author:** ![刀锋2026](https://avatars.discourse-cdn.com/v4/letter/%E5%88%80/a587f6/32.png) [@刀锋2026](https://forum.snapmaker.com/u/%E5%88%80%E9%94%8B2026)\ **Post date:** [June 17, 2026, 9:36am UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/46 "2026-06-17T09:36:03Z")
I came across an interesting lid design on Bilibili that moves the four ingredient trays inside the lid. This means the lid needs to be sturdy, preferably made of aluminum alloy. The upside is that the filament no longer needs separate preheating, but the downside is that you’ll need to buy longer USB cables. It’s strange that no one has pursued this direction yet. I already have a concept in mind and plan to build it soon. ---
**Author:** ![RepairAndTinker](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/repairandtinker/32/32623_2.png) [@RepairAndTinker](https://forum.snapmaker.com/u/RepairAndTinker)\ **Post date:** [June 17, 2026, 9:48am UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/47 "2026-06-17T09:48:08Z")
Would you mind sharing a link to this design that you found? ---
**Author:** ![刀锋2026](https://avatars.discourse-cdn.com/v4/letter/%E5%88%80/a587f6/32.png) [@刀锋2026](https://forum.snapmaker.com/u/%E5%88%80%E9%94%8B2026)\ **Post date:** [June 17, 2026, 10:04am UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/48 "2026-06-17T10:04:14Z")
> **[SnapmakerU1 内置耗材封箱方案 省空间 可打印TUP\_哔哩哔哩\_bilibili](https://www.bilibili.com/video/BV1wBz3BeExR/)** > > 在makerworld国际站上搜索“SnapmakerU1封箱方案 内置耗材挂架”，导入到U1里直接打印。SnapmakerU1 自动进料gcode:https://pan.quark.cn/s/3071c27944d8, 视频播放量 2984、弹幕量 0、点赞数 41、投硬币枚数 2、收藏人数 34、转发人数 4, 视频作者 千象工造, 作者简介 ，相关视频：snapmaker u1自动进料器位置改造，Snapmaker U1... I think his design could be improved. The material frame could use 1515 aluminum alloy, and the filament feed could be changed to a top-cover slide-out style. If anyone has better ideas, feel free to share them. ---
**Author:** ![刀锋2026](https://avatars.discourse-cdn.com/v4/letter/%E5%88%80/a587f6/32.png) [@刀锋2026](https://forum.snapmaker.com/u/%E5%88%80%E9%94%8B2026)\ **Post date:** [June 17, 2026, 10:27am UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/49 "2026-06-17T10:27:37Z")
I don’t know why I can’t download the U1 3D model files. Could someone send me a copy? My email is [sdwssj1@qq.com](mailto:sdwssj1@qq.com) (please replace # with @). ---
**Author:** ![Simon\_Zhi](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/simon_zhi/32/30470_2.png) [@Simon\_Zhi](https://forum.snapmaker.com/u/Simon_Zhi)\ **Post date:** [June 17, 2026, 3:38pm UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/50 "2026-06-17T15:38:22Z")
Its ok！！ ---
**Author:** ![RepairAndTinker](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/repairandtinker/32/32623_2.png) [@RepairAndTinker](https://forum.snapmaker.com/u/RepairAndTinker)\ **Post date:** [June 18, 2026, 9:30am UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/51 "2026-06-18T09:30:11Z")
I actually didn’t know there were model files available for the U1. Is there an official place to get them? ---
**Author:** ![CrazyIvan](https://avatars.discourse-cdn.com/v4/letter/c/7bcc69/32.png) [@CrazyIvan](https://forum.snapmaker.com/u/CrazyIvan)\ **Post date:** [June 18, 2026, 11:12am UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/52 "2026-06-18T11:12:30Z")
> [@RepairAndTinker](#): > > Is there an official place to get them? I don’t think so, but if you search “snapmaker u1” in the usual 3D model libraries (eg Thingiverse, Makerworld…) you’ll find plenty of third-party designs for printable accessories, including top covers. ---
**Author:** ![RepairAndTinker](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/repairandtinker/32/32623_2.png) [@RepairAndTinker](https://forum.snapmaker.com/u/RepairAndTinker)\ **Post date:** [June 18, 2026, 11:50am UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/53 "2026-06-18T11:50:46Z")
But this is not at all what I asked for 🙂 I did a lot of searching for U1 models of the machine itself, which is what was discussed and haven’t found anything close to a U1 CAD file. The person I replied to implied they found a link but that it didn’t work for them. I’d like to try that link and see if it for some reason works for me. I don’t need printable upgrades, I can make my own. If I get my hands on the file. I know it exists as I’ve seen people discuss it a couple of weeks ago but forgot to ask. ---
**Author:** ![CrazyIvan](https://avatars.discourse-cdn.com/v4/letter/c/7bcc69/32.png) [@CrazyIvan](https://forum.snapmaker.com/u/CrazyIvan)\ **Post date:** [June 18, 2026, 3:16pm UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/54 "2026-06-18T15:16:52Z")
> [@RepairAndTinker](#): > > I did a lot of searching for U1 models of the machine itself, which is what was discussed and haven’t found anything close to a U1 CAD file. So you didn’t find this?: - If you want to design the top cover yourself, here’s the 3D model of the U1 enclosure and key structures I reverse-engineered, packed as an STP file. > [@U1 Top-Cover Mod](https://forum.snapmaker.com/t/u1-top-cover-mod/40421/18): > > My machine has arrived—time to start detailed planning for the top enclosure. Quick update： 1.What material should I use for the printed parts? I checked with the staff: the chamber temperature can go up to 60 °C, so PLA is out . Unless you plan to never print high-temp materials in winter. So pick a filament whose glass-transition temperature is above 60 °C. The cheap, easy choices are ABS, PC, or PETG. 2.Besides acrylic, are there any other options for the clear cover? I asked a few fri… ---
**Author:** ![RepairAndTinker](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/repairandtinker/32/32623_2.png) [@RepairAndTinker](https://forum.snapmaker.com/u/RepairAndTinker)\ **Post date:** [June 18, 2026, 3:42pm UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/55 "2026-06-18T15:42:43Z")
Champ! ---
**Author:** ![CrazyIvan](https://avatars.discourse-cdn.com/v4/letter/c/7bcc69/32.png) [@CrazyIvan](https://forum.snapmaker.com/u/CrazyIvan)\ **Post date:** [June 18, 2026, 4:49pm UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/56 "2026-06-18T16:49:05Z")
> [@RepairAndTinker](#): > > I don’t need printable upgrades, I can make my own Oh, the “not invented here” attitude. Why spend hours or days perfecting your own design when you can leverage somebody else’s contribution in 5 minutes? OK, not always exactly what you might want, but if it’s good enough it saves a great deal of time and mental energy to apply more usefully elsewhere. Pay forward. ---
**Author:** ![Simon\_Zhi](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/simon_zhi/32/30470_2.png) [@Simon\_Zhi](https://forum.snapmaker.com/u/Simon_Zhi)\ **Post date:** [July 25, 2026, 9:37am UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/58 "2026-07-25T09:37:09Z")
> [@U1 Top-Cover Mod](https://forum.snapmaker.com/t/u1-top-cover-mod/40421/39): > > Here is the final version appearance effect that has been tested so far. [U1 TOP COVER - MakerWorld](https://makerworld.com/zh/models/2174986-u1-top-cover-gundam-color-scheme#profileId-2370643) This version uses magnetic door closure; apply a 1 mm-thick, 10 mm-wide strip of EVA tape to the frame. Here is 3MF：[U1 TOP\_COVER\_for SMOrca.zip](https://forum.snapmaker.com/uploads/short-url/oVdRsvzdXXnPAHqbsueUOBeDOoy.zip) (3.4 MB)(2026-01-01) Top Part STP：You can modify the STP file yourself. [Top part.zip](https://forum.snapmaker.com/uploads/short-url/mJETm4kppxpGuMvQBpGBkpWGSvG.zip) (512.6 KB) Door CAD :[PC\_Door\_3pcs\_CNC\_3.17mm.zip](https://forum.snapmaker.com/uploads/short-url/hrlj8pBmUjqKKtdT5qiKOaAoEMq.zip) (83.3 KB) Latest machine STP file with adjusted dimensions： [Product\_TOP\_COVE…](https://forum.snapmaker.com/uploads/short-url/z3ytF8fJhq8gk6VT2daX07aD0QX.zip) ![image](https://us1.discourse-cdn.com/flex022/uploads/snapmaker/original/3X/b/7/b7aa2ce5c63869056ae1c561d0be9d67ff90aec3.jpeg) ---
**Author:** ![Geri77at](https://avatars.discourse-cdn.com/v4/letter/g/74df32/32.png) [@Geri77at](https://forum.snapmaker.com/u/Geri77at)\ **Post date:** [September 4, 2026, 3:56pm UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/59 "2026-09-04T15:56:22Z")
Hi there, I’m not very experienced with communities and such, and I couldn’t really find what I was looking for. So, I’ve built a fully functional fan controller (controllable via a U1 display) for a DIY Top Hat. The special feature is that you can use all kinds of inexpensive 12V fans (2, 3, or 4-pin). All fans are PWM-controlled, including both the inner and outer fans. ---
**Author:** ![mvall](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/mvall/32/32086_2.png) [@mvall](https://forum.snapmaker.com/u/mvall)\ **Post date:** [September 4, 2026, 4:43pm UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/60 "2026-09-04T16:43:30Z")
Hello, I’m sure there would be some community interest in this. Do you have more details/photos to share or links to your project? I’m looking at DIY options myself. Thanks ---
**Author:** ![Geri77at](https://avatars.discourse-cdn.com/v4/letter/g/74df32/32.png) [@Geri77at](https://forum.snapmaker.com/u/Geri77at)\ **Post date:** [September 6, 2026, 12:04pm UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/62 "2026-09-06T12:04:11Z")
I still had to make some small changes to the .config; attached is the final version. I had issues with the internal fan when printing with PetG and ASA/ABS. Everything is now running smoothly. [Technische\_Dokumentation\_Snapmaker\_U1\_12V\_Lueftersteuerung-final.pdf](https://forum.snapmaker.com/uploads/short-url/4Rj2radKWs25TAjR5cH3KIvvUi4.pdf) (5.6 KB) ---
**Author:** ![xchrisd](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/xchrisd/32/1503_2.png) [@xchrisd](https://forum.snapmaker.com/u/xchrisd)\ **Post date:** [September 6, 2026, 7:12pm UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/63 "2026-09-06T19:12:18Z")
Thanks for sharing. I deleted your previous version to tidy up 😉 ---
**Author:** ![Geri77at](https://avatars.discourse-cdn.com/v4/letter/g/74df32/32.png) [@Geri77at](https://forum.snapmaker.com/u/Geri77at)\ **Post date:** [September 6, 2026, 7:24pm UTC](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429/64 "2026-09-06T19:24:32Z")
Thank you. It’s my 1st time in a Forum [Previous page](https://forum.snapmaker.com/t/collection-thread-u1-top-cover-mod/40429.md?page=2)