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u/3d-designs

r/Esphome r/MammotionTechnology r/homeassistant r/functionalprint r/mammotion r/3Dprinting
Image 1 — Connect a tube to an FA-400 soldering extractor
Image 2 — Connect a tube to an FA-400 soldering extractor
Image 3 — Connect a tube to an FA-400 soldering extractor
Image 4 — Connect a tube to an FA-400 soldering extractor
Image 5 — Connect a tube to an FA-400 soldering extractor
▲ 65 r/functionalprint

Connect a tube to an FA-400 soldering extractor

I have one of the, seemingly, ubiquitous FA-400 soldering extractors which I've had for some years. It's generally pretty good, but sometimes I find that it's sitting too far from the action and it would be very handy to have a more directed extraction tube.

So, I came up with this, which clips over the existing filter and allows a flexible extraction tube to be attached, providing a much more controllable aim.

If it might be helpful for you, you can find it here on Makerworld.

u/3d-designs — 10 days ago
▲ 3 r/mammotion+1 crossposts

Support questions

A few days ago my app stopped working, saying that my account had been deactivated.

I contacted support who asked me to send purchase information etc; all of which I sent. I then got a response saying that they'd fix the problem quickly.

This morning I got the following:

To help resolve this issue, could you please confirm the following:

Have you recently traveled to or stayed in China (including Hong Kong, Macau, or Taiwan)?

Once we have this information, we will do our best to resolve it for you as soon as possible.

WTF?

Firstly I can't see why it's relevant, but arguably it's also a privacy issue.

Of course, meanwhile my account is still deactivated with no explanation or means of my being able to resolve it.

reddit.com
u/3d-designs — 1 month ago
▲ 53 r/3Dprinting

Filament vacuum bags - much easier connection

I use and like the re-usable filament bags. The one downside is the faff involved in trying to get the pump onto the bag. I end up having to fiddle around, with the valve on the edge of the desk to allow for the thickness of the spool.

So, I've come up with this, which clips on to the bag and stays clipped on as the bag deflates. I'm using it with an external 24V vacuum pump, but I've also released a parametric model to allow it to be used with existing battery hand pumps.

It greatly simplifies the process and is simple to print. All you need to add, is a short length of cheap vacuum hose (8mm OD, 4mm ID).

While I'm discussing filament bags, I thought I'd offer some additional advice after having used them for a few years now.

  • Keep the original vacuum bags which came with the spool. Use this as a liner within the re-usable one. This is because they're not the thickest material and are easily punctured by a slightly rough spool, or filament. The liner of the thicker original bag can help a lot.
  • In the same vein: if you do have a bag which becomes unusable after being punctured, use it in the same way. cut off the sealing strip at the top and use it for double-bagging the spool.
  • Try to treat the bagged spools fairly gently. Again, this is to prevent damage. The edge of the spool against a shelf or, worse still, jammed against a neighbour, can easily cause abrasion.
  • Take heed of the maximum fill line. It's important to leave this top-right corner free.

I hope that this is helpful for some of you!

The models for the device itself are on Makerworld.

u/3d-designs — 1 month ago
▲ 24 r/Esphome+1 crossposts

Outdoor case for ESP32-C3 Supermini with SMA Antenna

In case it's helpful for anyone else, I have just completed the build of an outdoor case to house an ESP32C3 Supermini board, with SMA antenna.

I'm using this as a BT proxy and for BLE tracking. It's currently connecting well to my mower for local BT control and also detecting location for various BLE devices.

It uses the same TPU internal plate as my indoor design to fit the board itself and this just slides into the case which snaps together over it. There are no screws. There is a specific hex cut-out in the lid for the antenna and another hole in the base to take a grommet for the (USB) power.

The files are available on Makerworld, for download here.

Please let me know your thoughts (though, please be gentle - I'm a delicate soul ;-) ).

u/3d-designs — 2 months ago
▲ 35 r/Esphome+1 crossposts

Badly managed subnets

I've been skirting on running out of addresses on my /24 subnet for some time and as I'm adding more esphome devices, it was clear that I'd need to increase it.

So, I modified the subnet mask on the LAN from the /24 to /21, to give more a lot more space and avoid clashing with some separate VLANs I already have in place. Simple enough to do and, apart from some reboots, relatively painless - or so I thought!

After an annoying amount of unnecessary problems, I have discovered that a worrying number of manufacturers have simply ignored subnet masks and assumed everyone is using /24, it would appear.

Top of the naughty list appears to be Amazon. Many of my echo devices failed if they picked up an address outside a /24 range, as did a FireTV stick.

My Roborock vacuum suffered the same problem. I suspect that my Mammotion mower is seeing the same effect.

Now, it's easy enough to fix with some DHCP reservations, but it really shouldn't be necessary. Moreover, I would have thought it would be more work to deviate from a standard IP stack, than to standardise, but it seems not.

I mention this for two reasons.

  1. I just wanted to moan as it's pissed me off by creating unnecessary work.

  2. I can't imagine that I'll be alone in seeing this, so it may be useful for others to know.

Two further points for clarity:

  1. Of course, HA worked fine and was quite happy for me to change its subnet mask and it carried on perfectly.

  2. This problem is definitely real, as I subsequently found numerous discussions about the limitation in Amazon devices.

Why do something badly when doing it properly must surely be easier?

reddit.com
u/3d-designs — 2 months ago
▲ 2 r/Esphome

Must be an FAQ and I'm blind, but how do I link to a Github repository

My devices are getting quite numerous now and I'm making quite a number of tweaks as I go. I'm getting increasingly twitchy about version control and wanted to have something syncing to a private Github repository in case I need to refer to older versions etc.

I've spent quite some time trying to research this and have seen conflicting remarks ranging from "it's now built-in by default" (but with no reference on how/where it's set-up), to "there are reams on instructions to set it up" (AI - I know, I know).

I'm using the Esphome Builder app in HA for my builds and it works very well (I love the new UI), but how do I go about setting up a link?

I'm certain this must be an FAQ, so I apologise for that, but I can't find it!

TIA

reddit.com
u/3d-designs — 2 months ago
▲ 4 r/Esphome+1 crossposts

Requesting a feature augmentation to a component

Hello, I posted a feature request on Github a while ago. However, I've no idea whether my having done this will be seen, or if I've not posted it in the correct place.

It seems to me to be a very useful enhancement and (from having used the same facility in a third-party - now defunct - component) one which I know works.

What I wanted to know is whether I need to be posting elsewhere or in some other way. If it's simply not considered worthy of consideration, then I can live with that. My concern is that I may have simply not posted the request in the right place and it's just not being seen to even be considered.

Can anyone with any more experience than me, let me know one way or the other?

reddit.com
u/3d-designs — 4 months ago