Foshon's Big and Tall
- foshon
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Re: Foshon's Big and Tall
Poly, glad your here! Does a stripped (stripping) gearbox explain the issues I was having with this?
Purple = sarcasm
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Re: Foshon's Big and Tall
did you have all the bearings supporting the drive gear, I think there is 3 in extruder mount that support the drive gear. ultibots guy that sells these said if they aren't supported properly they tend to strip.
he says he uses these with no issues in his printers but i'll see for myself..
he says he uses these with no issues in his printers but i'll see for myself..
My rostock build log http://forum.seemecnc.com/viewtopic.php?f=42&t=1228
- Eaglezsoar
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Re: Foshon's Big and Tall
Please check that those gears are packed in white grease. The ones I have seen were not greased very well.cambo3d wrote:did you have all the bearings supporting the drive gear, I think there is 3 in extruder mount that support the drive gear. ultibots guy that sells these said if they aren't supported properly they tend to strip.
he says he uses these with no issues in his printers but i'll see for myself..
“ Do Not Regret Growing Older. It is a Privilege Denied to Many. ”
- foshon
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Re: Foshon's Big and Tall
cambo3d wrote:did you have all the bearings supporting the drive gear, I think there is 3 in extruder mount that support the drive gear. ultibots guy that sells these said if they aren't supported properly they tend to strip.
he says he uses these with no issues in his printers but i'll see for myself..
Yes, I used all three, there are two that set behind the drive gear and one in the idler assembly.
Purple = sarcasm
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- foshon
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Re: Foshon's Big and Tall
Eaglezsoar wrote:Please check that those gears are packed in white grease. The ones I have seen were not greased very well.cambo3d wrote:did you have all the bearings supporting the drive gear, I think there is 3 in extruder mount that support the drive gear. ultibots guy that sells these said if they aren't supported properly they tend to strip.
he says he uses these with no issues in his printers but i'll see for myself..
Will do, thank you.
Purple = sarcasm
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- foshon
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Re: Foshon's Big and Tall
Took the PG35L apart and cleaned it up. There is no visable damage, so maybe my ire was premature. Here's some pics of the guts.
[img]http://farm8.staticflickr.com/7281/8731484475_cf39417e0f_n.jpg[/img]
Untitled by foshon, on Flickr
[img]http://farm8.staticflickr.com/7287/8731485423_ce7679daa9_n.jpg[/img]
Untitled by foshon, on Flickr
[img]http://farm8.staticflickr.com/7282/8732607280_d85abb3ed8_n.jpg[/img]
Untitled by foshon, on Flickr
[img]http://farm8.staticflickr.com/7281/8732608416_b19c22cf0a_n.jpg[/img]
Untitled by foshon, on Flickr
[img]http://farm8.staticflickr.com/7281/8731484475_cf39417e0f_n.jpg[/img]
Untitled by foshon, on Flickr
[img]http://farm8.staticflickr.com/7287/8731485423_ce7679daa9_n.jpg[/img]
Untitled by foshon, on Flickr
[img]http://farm8.staticflickr.com/7282/8732607280_d85abb3ed8_n.jpg[/img]
Untitled by foshon, on Flickr
[img]http://farm8.staticflickr.com/7281/8732608416_b19c22cf0a_n.jpg[/img]
Untitled by foshon, on Flickr
Purple = sarcasm
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Re: Foshon's Big and Tall
that' doesn't look stripped at all from what i can see...
My rostock build log http://forum.seemecnc.com/viewtopic.php?f=42&t=1228
- Eaglezsoar
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Re: Foshon's Big and Tall
Bet there wasn't much grease in there from the factory. Be sure to pack it good with white grease.
I have several of those and each one came new with barely any grease. Those are good little motors
if you keep them cool with the fan and plenty of grease. Good luck with them.
I have several of those and each one came new with barely any grease. Those are good little motors
if you keep them cool with the fan and plenty of grease. Good luck with them.
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- foshon
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Re: Foshon's Big and Tall
I agree Cambo3d, there was absolutely no signs of anything being worn at all. That leaves me guessing as to why it wouldn't extrude. I think I possibly had my current set to low. I know I could have added more current as there was no sign of even a little heat when it was running. I think this little fella is going to go on junior.
Carl, it had grease in it. just enough to cover the gears, barely. I ended up using a fluoropolymer lube I had sitting around. Did all the research I could stand into if it would react with delrin, couldn't find anything.
Carl, it had grease in it. just enough to cover the gears, barely. I ended up using a fluoropolymer lube I had sitting around. Did all the research I could stand into if it would react with delrin, couldn't find anything.
Purple = sarcasm
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- Eaglezsoar
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Re: Foshon's Big and Tall
The grease you used should be fine. I agree on the current settings, these motors normally run hot, that's why
you must run the fan. Good luck with it Neil.
you must run the fan. Good luck with it Neil.
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- foshon
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Re: Foshon's Big and Tall
I wanted a way to purge and clean my nozzle automatically. So I made a thing. It attaches to one of the upright extrusions at bed level (I chose "Z"). It is in two pieces so I can pull the part that interferes with printable area off. The code I use (in theory, haven’t used it yet waiting for hardware) will drop the nozzle into the cup purge 3mm and then wiggle "X" back and forth. I'll probably repeat the process a couple times to be sure.
I foresee the benefit being twofold; one, no more grabbing strings of filament and making a mess, two, the purge takes place about 46mm over and 115mm away from the center of the bed.
It is now here. http://www.thingiverse.com/thing:93820
[img]http://farm9.staticflickr.com/8394/8816550119_6e6a513a61_n.jpg[/img]
Untitled by foshon, on Flickr
[img]http://farm8.staticflickr.com/7396/8827156560_b4c8260e3c_n.jpg[/img]
Untitled by foshon, on Flickr
Edit: added thing
I foresee the benefit being twofold; one, no more grabbing strings of filament and making a mess, two, the purge takes place about 46mm over and 115mm away from the center of the bed.
It is now here. http://www.thingiverse.com/thing:93820
[img]http://farm9.staticflickr.com/8394/8816550119_6e6a513a61_n.jpg[/img]
Untitled by foshon, on Flickr
[img]http://farm8.staticflickr.com/7396/8827156560_b4c8260e3c_n.jpg[/img]
Untitled by foshon, on Flickr
Edit: added thing
Purple = sarcasm
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- Eaglezsoar
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Re: Foshon's Big and Tall
Now that is a great idea! Good job!
Please share the code once you get it working.
Once again, a great idea!
Please share the code once you get it working.
Once again, a great idea!
“ Do Not Regret Growing Older. It is a Privilege Denied to Many. ”
Re: Foshon's Big and Tall
after awhile you probably would still have to clean the brush.. kool idea though
My rostock build log http://forum.seemecnc.com/viewtopic.php?f=42&t=1228
Re: Foshon's Big and Tall
Man that is brilliant!foshon wrote:I wanted a way to purge and clean my nozzle automatically...
Re: Foshon's Big and Tall
be less burned fingertips thats for sure.
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- Eaglezsoar
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Re: Foshon's Big and Tall
Hey Neal, is that brush part of the Dremel collection?
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- foshon
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Re: Foshon's Big and Tall
Eaglezsoar wrote:Hey Neal, is that brush part of the Dremel collection?
Thanks all.
Sam, it just pulls out of the block, switching it out would be fairly easy, I hope.
Carl, I have no idea. It came in a large multi-piece kit I bought off ebay last year. The shaft is 3.16mm so 1/8th ish. I think that is standard Dremel chuck size.
Purple = sarcasm
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Re: Foshon's Big and Tall
What might work well is brass wool used to clean soldering irons. I bet jiggling the nozzle in this would leave it glistening
http://www.newark.com/xytronic/459/sold ... dp/15J6972
http://www.newark.com/xytronic/459/sold ... dp/15J6972
Re: Foshon's Big and Tall
I like your brush idea. You could stick the gcode for it in the "prefix" for prints and it would always do that before it starts.
- foshon
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Re: Foshon's Big and Tall
Here is the code I put into the start of my prints. I use relative extruder measurements for Slic3r and this is set up for that. It homes, dives the nozzle into the center of the cup, starts heating the noozle and waits for it. Then, it extrudes 5mm wiggles, extrudes 5mm wiggles again, retracts 3mm and puts Y at zero.
Code: Select all
G28 ; home all axes
G1 F6000 X3.30 Y115.0 Z45.60
M104 S205
M109
M83 ; use relative distances for extrusion
G1 F5040 E5.0000
G1 F1500 X-5.7
G1 F1500 X13.7
G1 F1500 X-5.7
G1 F1500 X13.7
G1 F1500 X3.3
G1 F5040 E5.000
G1 F1500 X-5.7
G1 F1500 X13.7
G1 F1500 X3.3
G1 F5040 E-3.000
G1 Y0
G92 E0
Purple = sarcasm
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Re: Foshon's Big and Tall
I'm curious why your running with relative distance/gcode setup rather than the standard 5D Absolute the majority of us run?
Some unknown advantage? Are you used to it from a previous piece of machinery?
?
Some unknown advantage? Are you used to it from a previous piece of machinery?
?
"Now you see why evil will always triumph! Because good is dumb." - Spaceballs
- foshon
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Re: Foshon's Big and Tall
Flateric wrote:I'm curious why your running with relative distance/gcode setup rather than the standard 5D Absolute the majority of us run?
Some unknown advantage? Are you used to it from a previous piece of machinery?
?
Well it started out as frustration when I would purge the nozzle manually only to watch the printer suck the filament out of the hot end at the start of the print. I also can't quite get my head around what happens when filament slips in absolute mode. If it slips on a retract for example, then it tries to rebuild pressure thinking that Xmm of filament isn't there, wouldn't it be prone to grinding the filament. No real reason I suppose, habit and making things like the code above easier.
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- foshon
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Re: Foshon's Big and Tall
Purple = sarcasm
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- foshon
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Re: Foshon's Big and Tall
A note on the micro extruder unit. I have it mounted on junior now, running like a dream. I have been a Wade's/Budda fanboy for so long, I am stunned at the clean lines of the Pg/j-head combo on there now.
Purple = sarcasm
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Re: Foshon's Big and Tall
Can you give us a pic of it mounted?foshon wrote:A note on the micro extruder unit. I have it mounted on junior now, running like a dream. I have been a Wade's/Budda fanboy for so long, I am stunned at the clean lines of the Pg/j-head combo on there now.
No problems with the additional weight?