I will look at the step 9 again Tim. I was thinking something like this.
Yeah, don't go by me. I tend to not be able to leave well enough alone.
I ditched the bottom accent piece since as you can see in the second pic the bottom screws stripped out from torque so I did not include it after I fixed that. I may reconsider. The top plate serves as a good handle.
For now that two part hopper bashed into place on the studs and screwed together seems to provide a lot of twisted nipple prevention.
And note I am using a slotted spatula hose clamped to the nipple with the fan attached to that and the filament riding over the fan into a chopped off funnel to reduce friction and manage the flow. I use welders heat shield blanket for all insulation.
So you see it is held together with gorilla tape but it works 100% for now so no reason to mess with it again, yet.
The only issue I see is that it coils on the floor in sort of a clover leaf but the filament is usable.
I can send you a new (harder material) thrust plate if you email me, otherwise use a 1/2" washer from the hardware store to better spread the load.
Sorry about this guys! Looks like there was a mixup in the type of plywood used. I'll get parts to anyone affected for free.
]]>Reassemble with the motor a few mm backwards (because the wood has compressed), and you should be good to go. If the auger was bent as a result, shoot me an email (filastruder@gmail) and I'll get you a new one.
]]>so should i now re-assemble the system with the thrust bearing compressed and see what happens?
]]>I will look at the step 9 again Tim. I was thinking something like this.
The brace is fine to install, but it cannot carry any load - if it is, you are putting the motor bearings in compression, which they are not rated for.
There is no reason for that brace the way the Filastruder is designed. The motor generates pure torque, and only needs to be constrained at the base.
]]>i noticed that the thrust bearing is actually moving away(reverse motor direction) and towards (Correct forward motor direction) to wooden flange. The results are as per pics.
Of course it is, since in operation the feedscrew only experiences loading in one direction axially, so there is only one thrust bearing present. By running the motor in reverse, you are loading the feedscrew in a manner it was never designed to experience.
]]>I set up my filastruder as per 1.3 instructions and then after letting it heat it up, i switched the motor on, it extruded about 50cm of filament before the nipple started to rotate clockwise and the motor sounded under strain. i also noticed that the board the motor was mounted on was being pushed backwards away from the nozzle end.
Step 9 of the instructions explicitly states:
Slide the auger so that the thrust bearing is compressed during the future assembly steps.
If the thrust bearing is compressed, it will handle the thrust force from the pressurization of the polymer that is acting to push the feedscrew in the direction you describe.
I was thinking of adding a support from the motor board to the flange board.
Do NOT do this, the bearings in the motor are not rated for thrust loading. That is the whole point of the thrust bearing.
If the boards are being pushed apart then you did not assemble correctly (specifically, you did not follow step 9), and you may have bent the feedscrew/barrel as a result.
]]>
I also noticed that the board the motor was mounted on was being pushed backwards away from the nozzle end. I have had the same Issue. I was thinking of adding a support from the motor board to the flange board. The nipple also started to move at the start until my washer and dowel pins gave out. I have not got my Filastruder running because I havent had any time, but when I do ill post a pic. Can you let me know if you figure out what was causing the issue when you get your filastruder running.
]]>I seem to be having an issue similar the above mentioned problems, however i have tried the suggestions above with no luck.
I set up my filastruder as per 1.3 instructions and then after letting it heat it up, i switched the motor on, it extruded about 50cm of filament before the nipple started to rotate clockwise and the motor sounded under strain. i also noticed that the board the motor was mounted on was being pushed backwards away from the nozzle end.
It is not a problem with the shaft/motor pin/socket as that is still intact and installed tape as per the instructions.
My thoughts are that the auger is stuck in the nipple causing the nipple to rotate.
I tried holding the nipple with a wrench while running the motor clockwise and anticlockwise, this worked for a few seconds with the auger rotating, but while it did this, i noticed that the thrust bearing is actually moving away(reverse motor direction) and towards (Correct forward motor direction) to wooden flange. The results are as per pics.
I disassembled the system and i see that i cannot remove the auger from the nipple.
Any ideas?
Thanks in advance.
]]>To handle the barrel tightening, remove the 4 main bolts, run the motor in reverse, and reinstall the 4 main bolts.
Also make sure you're letting it heat soak (15 minutes after getting to temperature).
]]>