hello! Is there anyone that maybe could help me understand the calculations of the delta type printer?
Ive seen that there are different types of delta printers?
Rostock?
Kossel?
(Pros & Cons?)
(I want to build the type using smooth rod and gt2 belts) 500mm~ build height and 250mm Diameter heatbed āround/squareā and carbon fiber 8-10mm rods as arms (with M8 uniballs)
I canāt find any good information, that explains all the angles, length of rods and tower spacings and so on!
If I knew then it would be easy to design it in auto desk inventor. Iām stuck guys and really need your help!
Yes but itās still hard to know which dimensions and where? Base? Radius and so onā¦
Iāve tried using that but I donāt understand how itās measured or what itās messuring?
A few questionsā¦
Is this your first printer? Is this your first scratch build?
Just for knowledge and moving forwardā¦
Know that there is NO THEORETICAL DIFFERENCE in how any of the deltas operate. They all perform the SAME way, based on the SAME calculations. The difference, is simply the hardware delivery. Either itās using smooth rods, or linear rails, or some variation thereof. The critical (calculating) areas of ANY delta, are based around itās smooth rod offset, length of its arms, and the offset of the carriages for starters. Honestly, if this is your first scratch build, I wouldnāt recommend reinventing the wheel on your first try. Not saying that you arenāt capable, but the delta platform is rare amongst makers for a reasonā¦ itās very difficult to master. You could read all you want online, but experience will be your BEST teacher. You may want to consider using a prexisting design, then scaling up, once youāve mastered that.
Yes I understand that. I am capable of making one thatās for sure. I like the challenge to build stuff 
i already have one homemade 3D printer (pursa type) and itās a pretty simple and easy design.
The reason why I want to build my own delta is because Iām curious. And already have a pile of motors, controller boards on hand.
Feels like itās a big waste of money to buy a Kossel for $200-1000 to just learn and understand the physics of the delta type. And there is even more money into it if I buy a printer thatās suits my needs?
It seems like there are more people intested in building their own delta to?
Thats why Iām starting this thread about it,
So that other people also can get their hands dirty
Definitely understood, as all of my deltas are custom made by myself. But it seemed as if you were interested in starting with something non-standard, vs building/copying a delta from plans that are already out on the web. I was simply saying, start with whatās already made, then grow into something youāve designed for yourself.
Yeah 
Iāll probably build one later on,
bought one from aliexpress (Kossel K800 XL version) as a start to learn and understand the Delta style. Iām pretty new to 3D printing and looking forward to get started 
ive already built a 3D printer //build in progress
waiting for the last parts to arrive and then it should be ready 
The whole delta printer style looked pretty hard at the beginning but as you say, the dimensions / rules is what you design it to be.
There isnāt any ārulesā of building it, other than offsets and so on
i may or may not build another printer (depends on how this Ali printer is)
and if i do Iāll update this thread with information so that other people hopefully (newbies) like me can get started
there is for sure information about deltas on the internet but itās hard to find!
What information are you looking for specifically?
If you will have a working printer soon, once you really learn the process, youāll be able to print all your own parts. Then itās just a matter of sourcing your own parts.
I already got a Wanhao i3 and My other printer that im building,
just the general stuff about deltas,
Iāve seen that people talk about 80% rule (arm length) and so on.
And offsets to effector arm angles and such
I havenāt got time to do so much research.
And I donāt have any problem with designing and make a model/design neither to print the parts out from the CAD program.
Itās just that Iām afraid for doing a inefficient printer thatās big and bulky when it doesnāt need to?
My English isnāt the best, as you may have noticed XD
Iām trying to explain what I mean but itās hard to put the right words for it XD
Hi,
As I have started my 3D printer experience with a Rostock Delta, then built a Kossel mini. I can tell you these printers are great looking fast machines but can be quite challenging to calibrate them well.
Their design looks simple and nice but there is a lot of work behind for all the parts. Like the effector(this is the middle part where the rods connect and where the hotend is ) where its really counts how wide are the rods connections and their offsets from each other and from the center of the effector and related to this there is an ideal height position for the hotends nozzle, because the effector will tilt some degrees when reaching the edge of the build plate and this can be limited with good design.
If you want to know more about the delta printers there is a google group with lot of smart people including of course Johann the father of all our Delta printers.
Here is an article to read:
http://fab.cba.mit.edu/classes/863.15/section.CBA/people/Spielberg/Rostock_Delta_Kinematics_3.pdf
Here is the google group please read as much as you can its a long journey to understand things
https://groups.google.com/forum/#!forum/deltabot
Honz
12
Hi Tamas (@tpalagyi),
I have some questions regarding the delat 3D printer.
How can I contact you?
Thanks
Hi,
You can drop me an email to tpalagyi82 at gmail.com with your questions, or continue here the discussion.
Tamas
Hi,
Not received any mail from you yet.
T.
Honz
15
Hi, check your email now please. Thanks
