[quote=“VenHeelun”]Next month i have the money to buy the k8200 so then i can build the printer.
How long does it normaly take to build the thing?
I can solder a little bit but i’m not a technician.
I do like to order 2 of the trapezoidal spindels like in your build.
How much difference in printquality does the 13 mm spindel?
The once from Velleman are 8 mm i think.
Are the 8 mm once a poor investment?
What do you advice:
2 x 8mm from Velleman
2 x 8mm from Roeselare
Does it make any difference to use a toothbelt with finer tooth?[/quote]
I did not yet replace my z spindel, however I did order one that might be of interrest to you.
ebay.co.uk/itm/x1pce-Anti-Ba … OC:NL:3160
It has the same lead as the original velleman one, but it also features an anti backlash nut, which makes it a bit more expensive, but still cheaper than the velleman upgrade. Also this spindle (400 mm) is a bit longer than the velleman one which enables you make a stabilization joint on the end of the z axis, which the velleman upgrade has not.
I purchased the 400mm length.
I received it with excellent packaging and in excellent condition (= straight).
The delrin antibacklash nut fits very tight on the thread, and leaves (virtually has to move) no room for tolerance. Were some other trapezoid brass nuts left significant.
My mounting is a work in progress as I am also planning to fit a new steel motor bracket. I will need to do both at the same time as the motor bracket is slightly higher than the current one, so its a big thing.
This might be of interest, for leadscrew and belt calculations (and others)
I was also triggered by ichbinsnur to think about changing my belt.
Altought I do not quite comprehent all the inns and outs of the number of teeth, the above calculator shows that in terms of precision, less teeth = more precision…
Hope this helps,