From the bag with plastic parts, the SMALL GEAR with a small threaded hole on the side.
From the bag labelled 30, the SMALL LOCKING BOLT (M4x5).
Motor for the extruder
The problem.
From the manual:
Screw the small locking bolt (M4x5) in the small gear (do not screw it in completely).
Take a motor out of the package labelled with 9 and slide the small gear over the shaft.
Tighten the small locking bolt.
The above steps 1 and 2 are OK.
The above step 3 => PROBLEM.
The locking bolt can not be tightened, the gear cannot be “fixated” on the motor shaft.
I did not use force while tightening the locking bolt.
When tightening the locking bolt further into its threaded hole, it suddenly starts to “freewheel” before reaching/fixating the motor shaft.
It seems the threaded hole is not completely threaded down all the way…? Or the locking bolt is to short…?
When removing the gear from the shaft, the locking bolt falls through the “threaded” hole and can be retrieved by shaking the gear a bit after which the bolt fals out of the shaft-hole of the gear.
It seems to me the small gear is faulty?
Or am I missing something/doing something wrong?
NB.
Observing the mounted gear/motor picture in step 009 of the manual it looks like the (remaining small visible part of the) shaft of the motor looks a bit “rough”, like it has small “gear-teeth” (don’t know the proper english word for it), while my motor has a “smooth” shaft.
I did not notice these “small shaft-teeth” on my other (already mounted) motors either.
Should they be “teethed” a bit, or at least 1 of them?
NB2.
I noticed there 3 extra “small gears” in the package. According to the manual these are spare parts and should not be used here, since the have no threaded hole in them.
Questions
Anyone else has/had this problem?
Is there a simple solution/workaround I didn’t think of yet?
What are these 3 spare gears for (since the do not have the threaded hole in them).
Can I use one of these spares to solve my problem (and somehow make a threaded hole in them myself…)?
And the main question: Should I apply for a replacement of the small gear (and/or locking bolt)?
Are you sure you have used the correct bolt to fasten the gear?
The remaining gears can be used as a replacement, however, you will have to use an M4 instead of M3 bolt to fasten it.
[quote=“Harm”]Observing the mounted gear/motor picture in step 009 of the manual it looks like the (remaining small visible part of the) shaft of the motor looks a bit “rough”[/quote]presumably you mean this image, right? It’s just a reflection (black teeth against white background) on the motor shaft.
[quote=“VEL417”]Are you sure you have used the correct bolt to fasten the gear?
The remaining gears can be used as a replacement, however, you will have to use an M4 instead of M3 bolt to fasten it.[/quote]
Well, I have used the bolt as provided in bag 30.
Yesterday evening I took a closer look at this bolt.
Since I cannot see on sight if this is an M3 or M4 bolt, I can tell you it fits perfectly on a 2MM Allen key.
According to Google this means that it is an M3, right?.
So it seems that the wrong sized bolt was included in bag 30.
You received the correct bolt.
What I meant to explain: if you plan on using the spare gears WITHOUT thread, then you will have to use an M4 bolt.
This bolt is not supplied with the kit.
[quote=“VEL417”]You received the correct bolt.
What I meant to explain: if you plan on using the spare gears WITHOUT thread, then you will have to use an M4 bolt.
This bolt is not supplied with the kit.[/quote]
Aha, I see now what you mean.
But you got me confused now, since step 009 of the building manual clearly states the following :
[quote]Attention: there is one SMALL GEAR with a small threaded hole on the side this is the one you need, there are also 3 SMALL GEARS in a separate bag without the small threaded hole on the side, these are spare parts. Do not use one of these 3).
[/quote]
And further down in the manual it states:
[quote]Now screw the small locking bolt (M4 x 5) in the small gear. Do not screw it in completely.
[/quote]
So, in the manual it is mentioned to take de gear with the threaded hole and screw in the M4x5 locking bolt.
And you just answered that I received the correct bolt (which is the M3?) and no M4 locking bolt is provided.
Is the manual wrong …?
Anyway, thanks for the quick support.
I’ll try to find some locking bolts (M3/ M4/M5 …) near the place I live.
Otherwise I’ll apply for a replacement.
Sorry for the confusion, the original bolt should be M4.
If this is not the case and if you do not succeed to use one of the supplied gears, please let us know and we will mail you a spare gear and screw.
Also have a problem with this part. At the first test the motor didn’t rotate wel and now the thread is gone. I can try with a oversized m5 bolt. I was surprised that the spares don’t have a hole. Do i have to arrange that myself ?
