rickmellor wrote:Yeah, I'd really only recommend the qu-bd to someone if they have a lathe handy and know how to use it. Between the PTFE mod and the Mk7 drive gear the qu-bd works great for the money but it's a pretty steep hill to climb to get there. If you're decent with metal working then it could be worth it.
I've used the MkV J-head with 3mm filament and it never missed a beat. I'm in the process of switching to E3D 1.75 hotends with the EZStruder and I expect these to perform really well. Too early to tell though.
For 12 vs. 24 volt... mine works fine at 12v. The bed takes a while to heat up but once it's there it stays where it's supposed be. I also don't have any torque issues with my machine. The Hadron is a great frame, but it's really not stable enough to handle too much jerk. Maybe that's just me, but I don't really care about speed anyway. Waiting an hour or more for a large part is still much faster than I can design it so I don't have any trouble feeding the machine. I'm mostly concerned about precision, not fine details or speed.
-Rick
JLG wrote:Thanks for your reply Rick, I appreciate the extrude into.
What did you mean precision instead of fine details? Aren't they the same?
As far as speed goes, I've read in a few places that the printer had the potential to run up to a meter /second. It sounds like bull to me, but is there any confirmation that it can run at faster speeds?
JLG wrote:Okay, so I'm going to try making a shopping list:
pre assembled mechanical kit including gears, pulleys, and stepper motors
http://item.mobileweb.ebay.com/viewitem ... 0981613057
Would it be beneficial / produce higher quality prints to switch these stepper motors to these?
https://www.sparkfun.com/products/10846
extruder, hotend, and 24v heat cartridge:
http://item.mobileweb.ebay.com/viewitem ... 1147396499
http://item.mobileweb.ebay.com/viewitem ... cmd=VIDESC
http://store.qu-bd.com/product.php?id_product=20
heat bed (it's 12v, but I could step down the voltage you said, right?):
http://www.panucatt.com/product_p/hbp200.htm
Or could you suggest an alternative?
Power Supply:
http://www.ebay.com/bhp/power-supply-24v-350w
controller + 4 stepper drivers with heat sinks (DRV8825)
http://www.panucatt.com/Azteeg_X3_repra ... ax33dp.htm
limit switches:
http://ca.mouser.com/Search/m_ProductDe ... 50F15CD1-Z
So how did I do? Anything missing or needing changes?
rickmellor wrote:Different version of the Wade's extruder: http://printrbot.com/shop/experimental- ... -extruder/
Molded gears for Printrbot's extruder: http://printrbot.com/shop/injection-mol ... -gear-set/
rickmellor wrote:I wouldn't bother swapping the steppers. With 1.8deg steppers you still get around .012mm resolution (x/y) with 16x microstepping.
rickmellor wrote:Well, precision at a given resolution, I suppose. I primarily print mechanical devices so I don't need 100 micron or better layers, .2 or .4 mm layers usually serve me well, but that's not really what most people would call 'fine detail'. I do need things to be very precise, however, so that parts that I design will interface properly with other parts that I've purchased.
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