Re: Folger Prusa i3 Kit from ebay September 20, 2014 05:36PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay September 20, 2014 07:05PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay September 20, 2014 07:59PM |
Registered: 10 years ago Posts: 477 |
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Waltermixx
i will also be googling prusa i3 mosfet coolers to see what others have done... but i definately want to put some kind of heat sync on it,
I did putchase a 12 volt fan, so just have to get a mount for it...
Re: Folger Prusa i3 Kit from ebay September 20, 2014 08:53PM |
Registered: 9 years ago Posts: 54 |
Re: Folger Prusa i3 Kit from ebay September 20, 2014 08:54PM |
Registered: 9 years ago Posts: 54 |
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Waltermixx
@dooms,
Hi there, did you end up posting your final Vref measurements? I checked the thread and saw the original ones, then you mentioned you changed them for better speed...
would you mind posting your settings? also I was wondering, the conifiguration.h file you attached to a message, are the extruder settings already done on it? or do I need to
adjust that? I ran some ABS though my extruder, and it seemed to come out fine... but not sure if it needs any fine tuning for printing?
Cheers.
Re: Folger Prusa i3 Kit from ebay September 21, 2014 10:32AM |
Registered: 9 years ago Posts: 208 |
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dooms101
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dooms101
A heads up to people who are also confused about what VRef to run with these motors. After much trial and error my settings are like this:
x axis: ~130mV
y axis: ~300mV
z axis: ~250mV
extruder: ~180mV
Your mileage may vary. I found these values by turning the VRef down to about 50mV and then using Pronterface to move the axis. I kept turning it up until I could get the speed I needed. Remember not to turn the trim pot on the controller unless the motors are off!
After a few more prints I think these values are too low for the speeds I'm running at. These values work well for slow prints (~80mm/s) and keep the motors nice and cool, but for higher speeds I had to increase the values, especially for the extruder. I'll post what I end up with along with the Marlin settings I'm using. I assume others will this to be useful info.
Re: Folger Prusa i3 Kit from ebay September 21, 2014 03:20PM |
Registered: 9 years ago Posts: 44 |
Re: Folger Prusa i3 Kit from ebay September 21, 2014 04:12PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay September 21, 2014 05:52PM |
Registered: 9 years ago Posts: 54 |
Re: Folger Prusa i3 Kit from ebay September 21, 2014 05:54PM |
Registered: 9 years ago Posts: 54 |
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Waltermixx
Okie doke so I printed a test cube 20x20x20 with 25% infill and it turned out pretty good...
it warped of course because I was not using Kapton tape. I printed a test cube before this one, and before adjusting the Vref ( which were totally wacked ).
I have to get me some kapton tape now.
[www.flickr.com]
@Dooms101: The lastest pics are in the link above, including some pictures of the RepRap Discount Full Graphics LCD. I do like having this alot, it allows me to work without a computer once the file is sliced and saved on the card.
I can start a print from the SD card, adjust the temperature and speed of the print while it's printing, pause, and change filament if I wanted to coloured layers...
I kind of think it's totally necessary. adjusting speed and temp (bed and extruder) on the fly alone is worth the $24.95 alone.
Re: Folger Prusa i3 Kit from ebay September 21, 2014 07:23PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay September 21, 2014 09:03PM |
Registered: 9 years ago Posts: 54 |
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Waltermixx
I had it added to my order from Folgertech guys...
[shop.folgertechnologies.com]
it was in their onine store for cheaper than their ebay listing...
so I purchased from the online store. Because my Prusa i3 Kit had not shipped yet,
I asked them if they could add the graphics LCD kit, and cut the rods to my Prusa purchase and then ship it...
hope this helps
Re: Folger Prusa i3 Kit from ebay September 21, 2014 09:18PM |
Registered: 9 years ago Posts: 54 |
Re: Folger Prusa i3 Kit from ebay September 21, 2014 10:01PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay September 21, 2014 10:32PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay September 21, 2014 10:56PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay September 22, 2014 12:13AM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay September 22, 2014 08:45AM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay September 22, 2014 09:00AM |
Registered: 9 years ago Posts: 1,159 |
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Waltermixx
hmmmm... as far as the fan is concerned there appears to be a space for an extruder fan not currently being used:
labeled extruder fan, i wonder if it's controllable, or is always on... this should do for the cooling fan if always on...
does anyone know if it's ok if the extruder fan (the one on the extruder) can always be on? instead of using D9 for the extruder fan, and use D9 to control a print fan for PLA?
just wondering what the consensus is for that?
Re: Folger Prusa i3 Kit from ebay September 22, 2014 10:00AM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay September 22, 2014 06:19PM |
Registered: 9 years ago Posts: 44 |
Re: Folger Prusa i3 Kit from ebay September 22, 2014 07:08PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay September 22, 2014 07:33PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay September 22, 2014 10:01PM |
Registered: 9 years ago Posts: 208 |
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Waltermixx
printed one of these 40mm fan mounts for the Ramps 1.4 board.
what a difference the fan makes on the heatbed mosfet.
Cheers.
Re: Folger Prusa i3 Kit from ebay September 23, 2014 01:10AM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay September 23, 2014 01:56PM |
Registered: 9 years ago Posts: 44 |
Re: Folger Prusa i3 Kit from ebay September 23, 2014 02:04PM |
Registered: 9 years ago Posts: 44 |
Re: Folger Prusa i3 Kit from ebay September 23, 2014 04:10PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay September 23, 2014 09:00PM |
Registered: 9 years ago Posts: 208 |
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sloppyprinter
Hi how do you find the people that you have commented on lol . anyhow I got some pics of mine now .
Re: Folger Prusa i3 Kit from ebay September 23, 2014 10:01PM |
Registered: 9 years ago Posts: 54 |
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Waltermixx
Well I did it... i printed something...
The challenge thus far has been getting stuff to stick... I did not have a chance to get hairspray, so I'm hoping i can sort this out.
I also want to try an ABS slurry.
Cheers.
White ABS. from www.filaments.ca (the stain on the top of the head is from crap stuck to the nozzle incorporating itself into the print... oh well
Cheers.