Cherry Pi III Is Available
Posted by AndyCart
|
Re: Cherry Pi III Is Available March 16, 2015 03:32PM |
Looking good there Matt! 
|
Re: Cherry Pi III Is Available March 16, 2015 03:51PM |
Thanks Doug, but like I said without this forum and your guys helping out it would be an expensive paper weight 
|
Re: Cherry Pi III Is Available March 16, 2015 06:52PM |
Hi Andy,
I did a bit of reading around and supposedly you can get away with feeding more plastic types with a direct drive extruder. I know the down side is you need a bigger stepper motor (40N.cm torque+ ) to push the plastic but I thought I would give it ago. I purchased a high torque stepper motor for the job. Just looking for instructions to calibrate it now as 10mm extrudes about 46mm currently. I might be moving to the Greg's Wade if all goes wrong, I'll keep the forum unto date with my failures, sorry success with it
I did a bit of reading around and supposedly you can get away with feeding more plastic types with a direct drive extruder. I know the down side is you need a bigger stepper motor (40N.cm torque+ ) to push the plastic but I thought I would give it ago. I purchased a high torque stepper motor for the job. Just looking for instructions to calibrate it now as 10mm extrudes about 46mm currently. I might be moving to the Greg's Wade if all goes wrong, I'll keep the forum unto date with my failures, sorry success with it
|
Re: Cherry Pi III Is Available March 16, 2015 06:55PM |
Day 15
I've finished the electrical installation other than the hot bed and a calibration cable. I'll get that done tomorrow lunchtime, athough if the weather is good, I may grab the RC gear and go flying.
The filament is on order and should arrive in the next couple of days and I may order a right angled USB connector as the straight one is putting a lot of strain on the socket where it's jambed against the frame. Either way it should see some power before the week is out. I just need to read and re-read the calibration guide.
Andy, what settings should I use in Cura for the print volume and such?
Edited 1 time(s). Last edit at 03/16/2015 06:58PM by gowen.
I've finished the electrical installation other than the hot bed and a calibration cable. I'll get that done tomorrow lunchtime, athough if the weather is good, I may grab the RC gear and go flying.
The filament is on order and should arrive in the next couple of days and I may order a right angled USB connector as the straight one is putting a lot of strain on the socket where it's jambed against the frame. Either way it should see some power before the week is out. I just need to read and re-read the calibration guide.
Andy, what settings should I use in Cura for the print volume and such?
Edited 1 time(s). Last edit at 03/16/2015 06:58PM by gowen.
|
Re: Cherry Pi III Is Available March 16, 2015 08:32PM |
New head is doing nice prints but still getting slight jumps does anybody have any suggestions on what it could be.
On that print I was doing 0.1mmlayer,0.8mm shell thickness,0.6 bottom/top thickness,0 infill,195c temp,100% flow
retraction 35mm,4.5mm distance,initial layer 0.3,travel speed 80,bottom layer speed 20mm/s,bottom layer 20mm/s,all others 40mm/s
|
Re: Cherry Pi III Is Available March 16, 2015 08:43PM |
Quote
mrorange26
New head is doing nice prints but still getting slight jumps does anybody have any suggestions on what it could be.
On that print I was doing 0.1mmlayer,0.8mm shell thickness,0.6 bottom/top thickness,0 infill,195c temp,100% flow
retraction 35mm,4.5mm distance,initial layer 0.3,travel speed 80,bottom layer speed 20mm/s,bottom layer 20mm/s,all others 40mm/s
Wow man, that's looking great. Can't even see layers for the most part...
|
Re: Cherry Pi III Is Available March 17, 2015 04:18AM |
Quote
AndyCart
Love the colour Matt. I'm curious as to why you went with an Airtripper extruder. I tried one once as it was so compact but decided mine needed a geared stepper to drive it properly and they were quite expensive so I went back to a Greg's Wade. If you have success I'd love to hear as I love the design.
Guy's I went with a Mini Mendel extruder as supplied by RepRapPro which is a very compact geared extruder and the STL's are available for it.
I know it cost me a bit of cash but it did come with a motor so it wasn't to bad. The red bracket is my own design and I modified the extruder body by drilling out the feed end to 9mm and fitting a Bowden connector 4mm bore 1/8 bspp thread I also drilled the connector out to 4 mm at the rear so that the PTFE tube would fit all the way thru.
to do it yourself would need 4 plastic parts plus the bracket main thing is that the body/gears need to be printed quite finely.
If anyone wants the Red bracket in the print then I will upload the STL for it.
Doug
Sorry, only registered users may post in this forum.