Questions or doubts

CeledaBcn

Questions or doubts
August 28, 2015 01:52PM

Registered: 8 years ago
Posts: 24

Hi

I'm near to start print the parts for my smartrap core, i have several questions or doubts about somethings.

For the moment, i'm not sure if use double lead screw or thread rod, or new belt system i see... i'm planing to have a 200x300 hotedbed of silicone with aluminium plate.

Hope can give me your opinion to start clarify doubts.

I will post other doubts in this topic in the future...

Thanks.

Reply Quote

smerrett79

Re: Questions or doubts
August 28, 2015 05:28PM

Registered: 9 years ago
Posts: 107

I'm about to print my second smartcore and I'm going to move to a double z screw. My first one had a M8 threaded rod and I quickly developed z ribbing. I changed it for a proper stainless steel lead screw and brass nut - much better. Mandrav says that the second lead screw made a big difference to his prints and I can see some slight vibration in my build plate during fast print head moves so either a second lead screw or more smooth z axis rods should help stop this.

Reply Quote

CeledaBcn

Re: Questions or doubts
August 29, 2015 01:35AM

Registered: 8 years ago
Posts: 24

Ok, i see.

Thanks for the answer.

And where you gonna place it? Both at the back side, or left and right? I been thinking of put both at the back, but i think they gonna lose efectivity...

Reply Quote

rcjoseb

Re: Questions or doubts
August 29, 2015 06:06PM

Registered: 9 years ago
Posts: 180

I am using two 5/16 threaded rods, one in the front and the other in the back. Works great! I used to use a dual belt system but the threaded rods produce better prints. My print bed is very large.

[www.youtube.com]

Reply Quote

CeledaBcn

Re: Questions or doubts
August 30, 2015 12:33PM

Registered: 8 years ago
Posts: 24

I follow your videos rcjoseb tongue sticking out smiley

But i will make the "classic" box, and only have the options of put it both at the back or at the sides.

But in the sides i have doubts about sizes to not touch the Y carriage... have to explore. And don't know how can affect the print height. If somebody can give some tips for it :-)

Reply Quote

smerrett79

Re: Questions or doubts
August 31, 2015 07:12PM

Registered: 9 years ago
Posts: 107

I'm going to go for the sides. Might have to get a bit clever about avoiding the y rods. I presume if you haven't cut the wood for your box yet you could account for this in the box design.

Reply Quote

CeledaBcn

Re: Questions or doubts
September 01, 2015 08:52AM

Registered: 8 years ago
Posts: 24

For the moment i'm on planing state.

And i was thinking. What about use the new Z belt system, but with a geared motor?

Reply Quote

smerrett79

Re: Questions or doubts
September 01, 2015 07:37PM

Registered: 9 years ago
Posts: 107

Sounds feasible to me - you might want to look for a pretty close ratio (I have seen 4:1). I've ben thinking about mounting the double z axis threaded rods outside the box as I'm planning on cutting out the centre of each box face. My current smartcore is really noisy. Looking to use the bushings that mandrav used to reduce noise too.

Reply Quote

jjazzyj

Re: Questions or doubts
September 02, 2015 11:59PM

Registered: 8 years ago
Posts: 13

Have you looked at the 20mm or 3/4 Alu tube builds people have done. I'm going to do that with dual Z screw like a few have done. Found a nice bracket for the tube or tslot on Thingiverse. Check out my Recycled MDF thread for what it looks like. I am stacked some short pieces of Alu tube to mount the Z stepper inside the box.

Reply Quote

smerrett79

Re: Questions or doubts
September 03, 2015 05:45PM

Registered: 9 years ago
Posts: 107

@jjazzyj - Yes, I saw your thread - looks good. I have plenty of MDF cut to the right size square panels (need to cut out centres) and, despite all the pictorial evidence to the contrary, I just don't trust the rigidity of the alu frames which are only attached at the corners. 8mm oil-less bushings arrived today so might start printing parts this weekend.

Reply Quote