Smart Effector issue
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Your mesh grid is right to the limits of the bed. I'd try M557 set inwards slightly - say
M557 R75 S15.If that doesn't work, how does it fail to reach a point? What fails? Does it not move far enough? Does it generate an error? Does it generate horrible grinding noises and a smell of burning? What actually happens when it cannot reach?
Also, can it reach teh point it seems to be failing if you just put those coordinates in a
G1? -
@tecno said in Smart Effector issue:
The rods and the adapter are original Dreammaker OverLord PRO, going back to a larger/wider effector (original adapter) made the situation better. Only trying to get this old Delta printer functional with a bit more modern parts.
I am in a process of building a large Delta of 1.4m height and ~550mm print diameter, Rods 610mm long directly to Smart Effector via magnets.This is extremely interesting as I'm still using my Overlord Pro, with the Dream maker hot end upgrade (V6 style) from some years ago.
The arm joints are getting tired and I have been considering fitting a spare Smart effector - but I'm still looking for appropriate arms etc., as the old ball joints are wear-prone and it seems daft to use new high accuracy parts with those.My larger machine has a smart effector on mag arms, which works superbly, the trigger distance near enough zero and amazing repeatability!
Back on topic:
If you want to retain the Overlord rods, I'd suggest using the Overlord effector plate and opening out the centre if required, so the Smart Effector fits through and is only attached at its original magball mounting holes.But, rather than screwing the two directly together, use long screws or threaded rod and commercial heavy wall tubular spacers or very precise printed blocks (for accuracy and rigidity) to offset the smart effector PCB upwards, so the nozzle offset below the plate is similar to the original overlord hot end.
It looks like spacers around 28 - 30mm long would be appropriate.
That will massively reduce the nozzle to effector leverage and tilt forces and increase accuracy, compared to having the entire hot end below the Overlord effector plate, with the rather flimsy arm joints.
(To reduce rod joint backlash on mine, I have a fairly strong rubber band around the centre of each pair of arms).
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@rjenkinsgb
Hi Robert,
This is my temporary setup with the original effector plate.
My studs are 15mm and I have been thinking about adding 15mm to mimic original head setup.
So I will do this now and see what it gives. -
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@tecno
The motor noise and "buzz" is very strong, it may be causing enough vibration to shake the smart effector?What Duet board are you using, and how are the motors configured?
(My Overlord is extremely noisy, but still using the original control board; the larger Duet controlled machine next to it is totally silent! )
Robert J.
Printers: Overlord pro, Kossel XL+ with Duet 6HC and "Frankentron", TronXY X5SA Pro converted to E3D toolchange with Duet 6HC and 1LC toolboards.
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@rjenkinsgb said in Smart Effector issue:
@tecno
The motor noise and "buzz" is very strong, it may be causing enough vibration to shake the smart effector?What Duet board are you using, and how are the motors configured?
(My Overlord is extremely noisy, but still using the original control board; the larger Duet controlled machine next to it is totally silent! )
SKR V1.4T with 2209's
; Drives
M569 P0 S0 ; physical drive 0 goes forwards using default driver timings
M569 P1 S0 ; physical drive 1 goes forwards using default driver timings
M569 P2 S0 ; physical drive 2 goes forwards using default driver timings
M569 P3 S1 ; physical drive 3 goes forwards using default driver timings
M584 X0 Y1 Z2 E3 ; set drive mapping
M92 X80.00 Y80.00 Z80.00 E80.00 ; set steps per mm
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M566 X1500.00 Y1500.00 Z1500.00 E1200.00 ; set maximum instantaneous speed changes (mm/min)
M203 X18000.00 Y18000.00 Z18000.00 E1200.00 ; set maximum speeds (mm/min)
M201 X1200.00 Y1200.00 Z1200.00 E1000.00 ; set accelerations (mm/s^2)
M906 X1200 Y1200 Z1200 E800 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout -
@rjenkinsgb said in Smart Effector issue:
My Overlord is extremely noisy
Yes it is, resonance box of worst kind as all parts are loose it sounds like.
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@tecno said in Smart Effector issue:
I GIVE UP SOON
https://youtu.be/nl0rSK4hzLc
https://youtu.be/UrhxmyiwaEEAre they intended to be answers to the questions you've been asked? From what I see, the effector reached all positions it would be expected to reach. It's false triggering before it hits the bed, but that's not what I'd call "can not reach all the points".
Does that video show the behaviour you are trying to correct and that you have described as "can not reach all the points", or is this supposed to be illustrating something else?
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@achrn said in Smart Effector issue:
@tecno said in Smart Effector issue:
I GIVE UP SOON
https://youtu.be/nl0rSK4hzLc
https://youtu.be/UrhxmyiwaEEAre they intended to be answers to the questions you've been asked? From what I see, the effector reached all positions it would be expected to reach. It's false triggering before it hits the bed, but that's not what I'd call "can not reach all the points".
Does that video show the behaviour you are trying to correct and that you have described as "can not reach all the points", or is this supposed to be illustrating something else?
The whole story started with false trig's and after a lot of tests it kinda worked OK then these can not reach started, now the points are reached and false trig pops up. This is a sensitivity issue as so many parameters can get to make issues like dive height I had yesterday. This is a bloody mess so I start to think there can be a problem with the board it self.
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@tecno said in Smart Effector issue:
SKR V1.4T with 2209's
OK, sorry I don't know that board. Presumably its running Reprap Firmware of some version, if the config is compatible with Duet boards??
The false triggers seem to only occur during movement, not when the machine is stationary? If so, it can only be either mechanical resonances or a wiring problem with crosstalk from a power cable to the sensor cable.
As an experiment, you could try putting some sponge rubber or wadded tissue between the sides of the heatsink and effector frame, to damp vibration without restricting the end movement on the smart effector too much, and see if that reduces or eliminates the false triggers?
If it does, the solution appears to be to try and improve the stepper driver settings or type, so they don't rattle the whole frame??
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False trig occurs when there is NO movement, can make longer delay with M672 still false trig.
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@tecno said in Smart Effector issue:
@phaedrux said in Smart Effector issue:
When and where was it purchased?
A few weeks ago via James
Sorry, I'm not familiar with James. Is that from a Duet reseller?
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@phaedrux said in Smart Effector issue:
@tecno said in Smart Effector issue:
@phaedrux said in Smart Effector issue:
When and where was it purchased?
A few weeks ago via James
Sorry, I'm not familiar with James. Is that from a Duet reseller?
jay_s_uk
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@phaedrux it's bought directly from Duet3D in the uk
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@tecno Please send an email to warranty@duet3d.com. Include a link to this forum thread and the details of your original purchase. You'll receive a reply with a form to fill out. It's possible there is a sensitivity issue with the Smart effector, swapping it will rule that out.
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@phaedrux said in Smart Effector issue:
@tecno Please send an email to warranty@duet3d.com. Include a link to this forum thread and the details of your original purchase. You'll receive a reply with a form to fill out. It's possible there is a sensitivity issue with the Smart effector, swapping it will rule that out.
Email sent
Cheers
Bengt -
@tecno
That sound is terrible...and beside lowering the sensivity of the smart effector i would say...get some new Linear bearings...just from that sound ever time it changes direction it could be vibrating bearings that affect the smart effector -
@barracuda72
The Overlord printers sound like that from new; the linear guides are pretty good as long as you keep them lubricated, twin rods with long bronze sleeve bushes.I've always thought the noise was due to a lack of or primitive microstepping in the control board & motor drivers, plus the long guide rod design means there can be some lateral resonances.
(The machines were launched on Kickstarter in late 2012 or early 2013, if I remember right, so the electronics are fairly primitive compared to a Duet).
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Time for an update
Awaiting new carbon fibre rods. (the old setup was/is to spongy)
