SoliForum - 3D Printing Community — Over my head with Triffid Hunter's Calibration Guide.

Re: Over my head with Triffid Hunter's Calibration Guide.

null@example.com (SnakeEyes) — Sat, 25 Jan 2014 14:57:55 +0000

auslander68 wrote:

Where can this calibration guide be found?

http://reprap.org/wiki/Triffid_Hunter%2 … tion_Guide

and I've already calibrated the extruder (found that vid already, thank you though), its pulling in exactly what I'm telling it to. But like i said, when i print the calibration cube its off a little, by .4 in some cases.

Re: Over my head with Triffid Hunter's Calibration Guide.

null@example.com (ronsii) — Sat, 25 Jan 2014 07:20:18 +0000

here you go http://www.youtube.com/watch?v=JZGdMc2ebPo this is for the extruder stepper calibration

Re: Over my head with Triffid Hunter's Calibration Guide.

null@example.com (satman49) — Sat, 25 Jan 2014 07:13:54 +0000

Take a look at http://www.youtube.com/watch?v=JZGdMc2ebPo

Re: Over my head with Triffid Hunter's Calibration Guide.

null@example.com (auslander68) — Sat, 25 Jan 2014 05:04:20 +0000

Where can this calibration guide be found?

Re: Over my head with Triffid Hunter's Calibration Guide.

null@example.com (SnakeEyes) — Thu, 23 Jan 2014 20:54:03 +0000

That's what I'm trying to do, and getting confused doing. I'm trying to take the existing data I have and figure it out from there. I.E. In the eeprom, x axis is set to 88 and the 5 mm calibration cube prints @ 5.42. so 5.42 / 88 = 0.0615909090909091. Than 5 / 0.0615909090909091 = with some rounding is 81.18. so x axis should be set to 81.18 ....... I think? Maybe? No idea........ Printing seems to be getting closer to 5 but I'm not sure what margin for error I should be expecting.

Re: Over my head with Triffid Hunter's Calibration Guide.

null@example.com (saymo606) — Thu, 23 Jan 2014 17:24:05 +0000

have you calibrated any of your printers stepper motors yet?

Re: Over my head with Triffid Hunter's Calibration Guide.

null@example.com (SnakeEyes) — Tue, 21 Jan 2014 21:31:45 +0000

SD 3. I'm testing a quarter circle

It's not perfect but I think that's pretty good. the other weird thing, which is why I went to that guide, is the quarter is 24.37 mm in diameter, but i had to make it 25 mm for the quarter to fit in. Also when I make the calibration cube, in the y axis it's 5.4, the x axis is 5.2, but z is fine at 5 give or take .02 mm.

Re: Over my head with Triffid Hunter's Calibration Guide.

null@example.com (satman49) — Tue, 21 Jan 2014 01:07:11 +0000

What 3d printer do you have?

Over my head with Triffid Hunter's Calibration Guide.

null@example.com (SnakeEyes) — Mon, 20 Jan 2014 17:46:14 +0000

Doing my best here but i feel im barely treading water when it comes to some of the more technical aspects of this. The guide says i need to

Know your stepper motors' full steps per revolution value. steps = 360 / angle, so 1.8° = 200 steps, 0.9° = 400 steps, etc.
(where do i find this?)

Know your stepper drivers' microsteps setting. Most Pololus are set to 16x. GEN3 driver 2.3 is fixed to 2 (half step). Some boards have 32x.
(........?)

Know the number of teeth on your pulleys. Standard printed pulleys have 8 teeth. Most machined pulleys have 10 or 12 teeth since 8 tooth is technically too small for T5 belt
(where do i find this?)

Know your belt pitch! XL and T5 belts /look/ the same, but the difference is important!
(what is this?)

Know the number of teeth on your extruder gears, or at least the gear ratio.
(where do i find this?)

Remove all sources of backlash. Your parts won't be usable as calibration pieces if you have lash!
(what is this?)

Open the Online RepRap Calculator to find XY and E steps, layer heights, and acceleration.
(help)

The issues i've been having are my circles are really bad, if i make a print that 25 mm circle, it makes one thats 23, and it seems my y axis is slightly off. Ive been printing the calibration cube and front to back the infill is off ever so slightly. Like i said doing my best to search out definitions but im kinda at a loss on this one.