Posts made by kre8

We have a Modix Big 60 printer and their customer support is less than stellar particularly their response time. I haven't found a community/forum for support, but since their machine uses the Duet WiFi board i know of this place and i've already gotten great support here with some issues we had with the Duet.

Anyways, it's a massive bed and the machine uses a BLtouch. However, if i print a single part that takes up the size of the platform, i find that the nozzle will be perfect in some spots, too far away in some and crashing into the build surface in others.

When i run the mesh, the overall variability is typically .5-.8mm which is well within what they spec for being "ok" to build. I don't have any sharp spikes anywhere in the heightmap that jumps out as a concern.

Initially i thought there might be a transition to quickly from one probe point to another that the machine couldn't compensate quickly enough while building, but i don't think that's the issue.

Any ideas where i can start troubleshooting or providing details so you guys can help?!

There has got to be something else contributing to my speed issue. Trying to send another file right now and i'm back down to 55KiB/s upload speeds.

@Phaedrux That was the ticket! It's on channel 1 now and the WiFi analyzer shows it's not competing with anything else on that channel. I'm uploading that 75mb file right now and i am getting 145KiB/s

I ordered the ethernet daughter card and ill have one of our electrical engineers modify that for me and we will just hardware to the printer. This should improve our transfer speeds dramatically...i hope!

@Phaedrux The printer is in the middle of a build so i'll need to wait till tomorrow to test this out. Thanks for your help so far!!!

@Phaedrux said in Duet 2 Wifi speeds:

What does it tell you when you send M589 by itself?

Own SSID: MODIX IP=192.168.1.100 GW=0.0.0.0 NM=0.0.0.0

@Phaedrux said in Duet 2 Wifi speeds:

Try C1 without quotes.

No dice!

@Phaedrux said in Duet 2 Wifi speeds:

Try including the C parameter when sending the M589 to create the access point mode.
M589 S"yourssid" P"password" C"1"

When i follow this sequence substituting my details, i get a error for bad or missing parameters

M589 S"MODIX" P"KRE8LABS" C"1" is what i entered.

So i've got the Duet set to channel 1 and then ran the analyzer. Signal looks good however im still on transferring at 70-100kbs....and actually now that i've spec'd a channel, it seems to constantly error out during a file upload.

@Phaedrux Got it...i'll give that a try.

Is there someplace to check that the channel was changed after i do that command?

Just tried sending a 75mb file to the printer using the duet wifi as an access point and i'm barely getting 100kbytes/sec

@dc42 I did the write test and it came back at 2.03Mbytes/sec for a 10.0 Mbyte file.

Thank you!

Awhile back, @tjschweizer did a post on doing just this. One question i had which i'm unable to ask due to the post being locked, is a different firmware required after you make this hardware change?

This article is ~3yrs old now and i have a Duet Wifi 2, but i assume it's still an option for me right?

@Phaedrux So so i just type M589 C, hit enter and then type in a channel number??

@dc42 On Friday we actually replaced the ~3" Modix antenna with one closer to ~11" long and that helped. I'll have to do the SD write test today and see what we get. As for the channels...i can try others once i know how to change it.

Ok, so i aborted the router altogether.

I setup the Duet 2 WiFi to be an access point like @Veti linked. Fortunately since that post was so old they apparently rolled that feature into the version of firmware that was already installed on the printer. Not sure why the printer manufacturer doesn't suggest this option.

So far my speeds have been in the ~100Kibs speeds which is better than where i was so. I'm still going to look into the Ethernet upgrade that @Veti also linked.

The router is about 7' from the printer.

The wifi speed per the M122 command is -42dBm....in that same command it says the SD card interface speed is 20mbytes/sec.

I wish there was a way to hardwire into this printer...the wifi thing has been a big pain!

Thank you for the link! I wonder why the 3D printer manufacturer hasn't told me about this option.

What sort of transfer speeds should i expect from the Duet with this method?

We purchased a Modix 3D printer which utilizes a Duet 2 WiFi. To keep things simple since this is installed in a corporate lab, we purchased a Netgear Nighthawk RAX20 router to act as an access point between the dedicated laptop and the 3D printer. The router is NOT connected to the internet, it's strictly for creating a wireless network between the laptop and printer.

We regularly upload files that are in the 40-80MB range, however, the upload speeds we are getting are in the 20-35kbs range....aka super slow! I realize the Duet 2 WiFi is only 2.4ghz compatible, but shouldn't we expect faster speeds than this??

I did try connecting the laptop directly to the router via the ethernet cable and sending files this way to isolate the speed to just the router and printer...it did get better, but not great. 60-75kbs range.

Any ideas? I'm not an IT person and i'm already pushing what i know about this stuff, so any help would be appreciated.