After R2 to R3 on MK3 - Small debris?
Hello,
I upgraded my extruder to R3. Now I'm getting small black debris on the bed, is this coming from the R3 parts I printed? I thought it was the X belt coming apart but now I think it's the plastic. Do you think this is just an initial wear and tear thing, or something more serious?
Re: After R2 to R3 on MK3 - Small debris?
I've just done the upgrade myself over the weekend. No little black bits coming from my printer. Its either going to be belt dust or black plastic from the extruder housing.
It's worth slackening off the two tension spring screws and opening the access hatch on the right hand side to make sure the Bondtech idler pulley / cog has not come loose and fowling the surrounding plastic? Also, its an obvious one, but were all the little stringey hairs of plastic removed from the freshly printed extruder body? PETG tends to print with little hairs, so a knife and blow dry with the hot air gun works wonders!
Lastly, look down thru the side of the machine where the X axis belt runs between motor and idler. Are the belts straight and true when the extruder head is moved from left to right? If the belts are not tucked in nicely into the back of the extruder carriage, they can rub when the extruder head moves all the way to the left or right.
Re: After R2 to R3 on MK3 - Small debris?
I've just done the upgrade myself over the weekend. No little black bits coming from my printer. Its either going to be belt dust or black plastic from the extruder housing.
It's worth slackening off the two tension spring screws and opening the access hatch on the right hand side to make sure the Bondtech idler pulley / cog has not come loose and fowling the surrounding plastic? Also, its an obvious one, but were all the little stringey hairs of plastic removed from the freshly printed extruder body? PETG tends to print with little hairs, so a knife and blow dry with the hot air gun works wonders!
Lastly, look down thru the side of the machine where the X axis belt runs between motor and idler. Are the belts straight and true when the extruder head is moved from left to right? If the belts are not tucked in nicely into the back of the extruder carriage, they can rub when the extruder head moves all the way to the left or right.
Hello and thanks for your feedback. The problem did go away seemingly by itself. I removed the back cover of the housing, inspected to make sure it all looked fine, but in doing so, a bit more black residues fell down. I cleaned it all up with an air can, put back together and no more residues. I printed the new parts with ABS... was it cheap ABS? Yes, more than likely, but it did stop shedding pieces. The belt looks intact too. I did loosen it a little because it felt too tight.