Search found 39 matches: sag

Searched query: sag

by zemlin
Wed Jun 03, 2020 2:53 am
Forum: Hardware
Topic: Gantry sag as seen by a BLTouch
Replies: 2
Views: 111

Re: Gantry sag as seen by a BLTouch

i there anything that you lost by going to the duest? im thinking about doing the same thing to my pro 2 plus The touch screen. I tried to get it to boot up on Ubuntu so I could just run a web browser on it. I did get it to boot up from the SD card, but there were lots of issues that I'm not smart ...
by Ressegger
Tue Jun 02, 2020 11:55 pm
Forum: Hardware
Topic: Gantry sag as seen by a BLTouch
Replies: 2
Views: 111

Re: Gantry sag as seen by a BLTouch

i there anything that you lost by going to the duest? im thinking about doing the same thing to my pro 2 plus
by zemlin
Sat May 23, 2020 2:24 pm
Forum: Hardware
Topic: Gantry sag as seen by a BLTouch
Replies: 2
Views: 111

Gantry sag as seen by a BLTouch

... plate (except for the front 50mm where the probe can't reach). Assuming the MIC6 is quite flat, any deflection in the bed mesh is coming from the sag in the gantry. Here's what I got. 4 corners N2 Gantry Sag.JPG Full bed mesh N2 Bed Mesh 1.JPG
by zemlin
Fri Mar 27, 2020 6:33 pm
Forum: Pro2 Series
Topic: Print Plate deforms strongly
Replies: 9
Views: 1856

Re: Print Plate deforms strongly

... from flat would be huge. .2mm is still a lot, but more understandable. If you are seeing a rise in the center, I'm guessing it's actually slight sag of the cross rods supporting the print head. The simply supported rods of that length will sag slightly from the weight of the print head. My printer ...
by ACatesWWT
Tue Mar 03, 2020 2:20 pm
Forum: Pro2 Series
Topic: Bed Leveling Hardware
Replies: 6
Views: 1337

Re: Bed Leveling Hardware

mdana, I believe you're 100% correct about the rod sag issue. I've noticed that there can be a fair bit of flex when the print head is near the middle of the gantry. Again, another reason to incorporate an auto bed leveling solution (or at least give ...
by mdana
Tue Dec 24, 2019 7:15 pm
Forum: Pro2 Series
Topic: Top surface rough with raised edges
Replies: 6
Views: 714

Re: Top surface rough with raised edges

... near the center of the bed and have leveled the bed with a dial indicator and a load cell. It still isn’t perfectly leveled though due to rod sag and lack of a center adjustment. I’ll try printing on a raft and see if that makes a difference.
by Heckler
Mon Dec 23, 2019 10:48 pm
Forum: Pro2 Series
Topic: Liquid cooled heat sink for the Pro2
Replies: 56
Views: 12335

Re: Liquid cooled heat sink for the Pro2

OMG that's insane! Kind of seems like a lot of weight to add to the extruder assy, did you notice any negative affects from the additional weight? The linear rods sag as it is with it in stock form.
by cowtownam
Sun Dec 01, 2019 2:26 pm
Forum: N Series
Topic: *HELP* N2 and N2 Plus Calibration Issues
Replies: 4
Views: 1378

*HELP* N2 and N2 Plus Calibration Issues

... am no fool, I understand I have a desktop machine here and they are not perfect, material is not infinitely stiff, and that the extruder head will sag a little bit, perhaps the rods may have some sag. But not this bad?? Why did my printers work so amazing prior to this? Perhaps I am overlooking ...
by Jetguy
Tue Jun 18, 2019 5:08 am
Forum: Pro2 Series
Topic: Bed leveling?
Replies: 7
Views: 2056

Re: Bed leveling?

Do a couple of keyword searches (Sag and deflection) and a lot of reading, you slowly get the hint why this design has some limitations, why since the kickstarter different folks had different ideas on modifications. It's pathetic the pro2 ...
by PTXer
Fri May 17, 2019 12:04 pm
Forum: Pro2 Series
Topic: Bedplate Leveling
Replies: 5
Views: 1279

Re: Bedplate Leveling

What is your dial indicator mounted to? My guess is they left the adjusting screws off the center so that it "sags" a little to perhaps mimic the sag of the head/rods when its in the middle. If your indicator is mounted to the extruder, the extra weight may be sagging ...
by JohnSays
Sat Mar 16, 2019 1:18 am
Forum: Hardware
Topic: How I more than doubled my print speed while increasing accuracy
Replies: 20
Views: 5736

Re: How I more than doubled my print speed while increasing accuracy

... travelers? I turn the ends down to 8mm. Lastly, you don't need less moment. Again, read what I wrote. I was using hollow carbon fiber. It had no sag, weighed 1/2 the aluminum rods weight and got me no performance improvement. I did extensive testing of a variety of rods using a digital force ...
by JohnSays
Sun Mar 10, 2019 9:08 pm
Forum: Hardware
Topic: How I more than doubled my print speed while increasing accuracy
Replies: 20
Views: 5736

How I more than doubled my print speed while increasing accuracy

... entire moving XY print mechanism. There were other good reasons why CoreXY would be better. One is that the weight of the current gantry causes sag from its own weight. Thus it is literally impossible to print a flat object: The closer the printhead moves to the center, the more sag due to weight. ...
by Zoidsfan77
Mon Jan 07, 2019 7:37 pm
Forum: Pro2 Series
Topic: Bed Level Issues
Replies: 5
Views: 1356

Bed Level Issues

... have never been able to get the bed level. No matter what I do, there is a high spot in the center of the bed. At first I thought it was just rod sag due to the anemic 8mm rods (I'm sure that contributes to the issue). I placed a flat piece of machined steel on the center, and it does rock just ...
by zemlin
Mon Dec 24, 2018 3:03 am
Forum: Hardware
Topic: Another topic about a gap
Replies: 13
Views: 2232

Re: Another topic about a gap

... for 8mm diameter rods and an estimate of the weight of the gantry - I don't remember the exact numbers, but they were comparable to the gantry sag of the N2 printers. I don't, however, find that this leads to any warping of parts, as it's only very small amount of sag. With larger parts and ...
by Gwen44
Mon Nov 12, 2018 9:55 am
Forum: N Series
Topic: N1 Cable Chain Mod
Replies: 5
Views: 1400

Re: N1 Cable Chain Mod

... mounted on the Bondtech N2 kit and causes constraints. It also rests on the housing to alleviate the stress in the Z because the X and Y axes sag even with bondtech. It has been a long time since Raise should have increased the diameter of these 2 axes. I hope this has been done on the pro! ...
by OsoVerde
Wed Oct 24, 2018 6:50 am
Forum: Pro2 Series
Topic: Tramming screw missing on center point
Replies: 5
Views: 1149

Re: Tramming screw missing on center point

... the lower plate rather than changing the shape of the build plate surface. the "hump" you noticed in the middle is more likely caused by sag in the extruder rails than anything on the build plate. I leveled mine using a glass sheet (about as flat as you can get for non-lab environments) ...
by Jetguy
Tue Aug 28, 2018 3:27 pm
Forum: Pro2 Series
Topic: Cold nozzles reading 240° C
Replies: 95
Views: 21107

Re: Cold nozzles reading 240° C

... diode circuitry to limit voltages higher than 3.3V is applied. That leakage could explain why a 3.3V pullup high value resistor like a 1meg could sag and only pull up to about 2.4V, or, say they did use a 5V pullup and again, for whatever reason clamping to prevent ADC damage limits the voltage ...
by Prop-Fiction
Thu Jun 28, 2018 8:54 pm
Forum: Hardware
Topic: Where to get Spare Parts for Pro2
Replies: 24
Views: 3457

Re: Where to get Spare Parts for Pro2

Yes but only for USA Canada and brazil.
Cant Order from Germany :-(. Sales Team sag have to wait Till this araived in Germany.

Regurts Carsten
by EldRick
Wed Dec 13, 2017 4:52 pm
Forum: Hardware
Topic: glass bed can't be leveled because it's not flat :/
Replies: 13
Views: 4465

Re: glass bed can't be leveled because it's not flat :/

Or you could just get a Bondtech extruder, and save a kilogram that is making the rods sag, while getting more reliable and accurate extrusion.
by jmp
Mon Dec 11, 2017 12:53 am
Forum: Hardware
Topic: glass bed can't be leveled because it's not flat :/
Replies: 13
Views: 4465

Re: glass bed can't be leveled because it's not flat :/

... than ask for a replacement? There are 2 causes for high spot in the middle. One is your platform has a bulge in the center, the second is rod sag from the heavy extruder. Glass is almost always flat (you probably adjusted the platform so it bows down which is why the glass isn't flat on it) ...

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