Should I wait for the DC42's PCB carriages or go Robotdigg?
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The OP mentions using 1.8 degree steppers on his delta uprights, but a 0.9 degree stepper for his extruder. I was curious as to whether there is a reason behind only changing the extruder over to 0.9 degrees?
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What are the pcb carriages going to do?
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The purpose of the PCB carriage adapters is simply to ensure that the magballs have precisely the same spacing at the carriages as they do at the effector, thereby eliminating one source of geometrical error. That's all.
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What Ball spacing have you gone for David?
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55mm.
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OK just interested I have gone with 64 on Water jet cut 3mm Alluminium Slider pieces that will accept the Robotdigg carriages and either Openbuilds full size Vee Wheels or fasten onto HIWIN Sliders?
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In for updates. I have RDG carriages with Haydn's magball arms on the way.
I'm upgrading to IGUS drylin N rails and preloaded slides- will let you know how I fair.
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you will need to do some form of adaptor to mount the Robotdigg carriages onto IGUS Drylin rails the hole spacing's are totally different the RD are a 20x20 pitch and the drylin I think is 20x15 but that depends on which rails you have ordered.
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There are two slider sizes for the type of linear rails we normally use in deltas, the standard ones with 20x15 mm fixing centres, and the 'long body' ones with 20x20mm (which is what everyone uses). I haven't looked to see whether Igus does the long body sort in their range.
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Looks to me like the Drylin N series only has 2 holes spaced at 28mm apart on the centre line.
Drylin T look interesting but they are huge
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The OP mentions using 1.8 degree steppers on his delta uprights, but a 0.9 degree stepper for his extruder. I was curious as to whether there is a reason behind only changing the extruder over to 0.9 degrees?
Well, I've read the documentation on the e3d titan extruder and it says that the new kits should come with a 0.9 degree stepper motor (they don't mention anything about 24v curiously).
My supplier only had the old kits on stock, so I bought the 0.9 degrees stepper separately from them to try. I had to cut the max speed on the extruder by half to get it working correctly (as expected from dc42 blog entries). I'm not sure If only the extruder made the prints better or that the 0.9 degrees stepper helped too (but then again have a 1.8 stepper on the side to see. If I want / need/ have time). I like to think so.I want to change the tower steppers to 0.9 degrees in the future but then want to change to 24v as well. Not cut my tower speeds by half.
However, I like a quiet machine (now 12v quiet corsair SF450 power supply and quiet 40mm noctua fans. Can't hear the power supply or fans, sitting next to it. Printer without enclosure) . So I am looking into those aspects before changing to 24v , preferably with blower fans since I had great results with those. But the cheap ones are noisy.Like everybody. Just tinkering along.
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Steppers are not defined 12v or 24v so good to go in both.
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However, I like a quiet machine (now 12v quiet corsair SF450 power supply and quiet 40mm noctua fans. Can't hear the power supply or fans, sitting next to it. Printer without enclosure) . So I am looking into those aspects before changing to 24v , preferably with blower fans since I had great results with those. But the cheap ones are noisy.
Changed to 24V with a set of 12V silent fans as well. You can get a small DC-DC converter and feed the 12V to the center pin on the fan selector jumper. Which allows you to run constantly on and pwm controlled fans from a different voltage.
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Changed to 24V with a set of 12V silent fans as well. You can get a small DC-DC converter and feed the 12V to the center pin on the fan selector jumper. Which allows you to run constantly on and pwm controlled fans from a different voltage.
Can you tell me what your quiet setup (power supply / fans /DC-DC converter) is? suppliers /links?
And thanks dc42 for clearing the specs of upgrade out
Jeroen
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Looks to me like the Drylin N series only has 2 holes spaced at 28mm apart on the centre line.
Drylin T look interesting but they are huge
Running NW-02-27-P, two 20mm single holes in line. Having a friend machine an adapter to 20mm x 4 M3 so I can use any standard robotdigg/long carriages. Ends up being about the same height as a standard MGN-12. Maybe a little shorter. http://www.igus.com/wpck/3592/drylin_n_NK_02_27
I have samples, I really like them.
I'm on 24V and everything is near silent other than the e3d v6 fan- I don't use a fan for PETG. Also my electronics stay very cool as it's typically cold as f**k in my office.
Other trick with 12v fans on 24v is just set the maximum PWM frequency to 50% and you've got right around 12v. That or wire them in series.
