Limit Switches not engaging
Limit Switches not engaging
Hey everyone. I am a first time printer builder who just finished the V3 printer. Unfortunately I seem to be having an issue with the flat head screws on the carriages engaging the limit switches. I initially noticed the the screws were tilted back away from the carriages and suspected that might the issue but I have since fixed them and they still do not engage the actual switch.
This is the initial placement I had and below is my fix to try to solve the issue.
I know that the switch is not blocked as I can engage it with a screw driver. Has anyone else had this problem and found a good solution? If I don't plan on using the maximum height of the print with this end up causing my a problem?
Any suggestions are greatly appreciated.
This is the initial placement I had and below is my fix to try to solve the issue.
I know that the switch is not blocked as I can engage it with a screw driver. Has anyone else had this problem and found a good solution? If I don't plan on using the maximum height of the print with this end up causing my a problem?
Any suggestions are greatly appreciated.
- Jimustanguitar
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Re: Limit Switches not engaging
Can you take a picture of how the screws line up with the levers on the switches at the top?
Re: Limit Switches not engaging
I am not sure exactly of how to take that picture, there is almost no room and zero light that actually see whats happening but I will make some attempts.
Re: Limit Switches not engaging
I ended up getting some longer screws for mine and screwing them in further to make sure they were vertical.
Re: Limit Switches not engaging
The screw should be 3/4" long - if it's not, bug SeeMeCNC about it. Some of the early kits may have gone out using the pre-packed carriages for the v2, and those screws were only 3/8" or so.
g.
g.
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Re: Limit Switches not engaging
also make sure to remove the silver switch arms.
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Re: Limit Switches not engaging
Kevinvandeusen wrote:also make sure to remove the silver switch arms.
THIS. A million times, THIS.
I wasn't aware of that until AFTER my build was nearly done. I was highly annoyed when I found out I had to partially disassemble the machine to get at those stupid levers. I made sure to update the docs with an uppercase warning when I discovered this.
g.
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Re: Limit Switches not engaging
Why does the v3 even need those adjustment screws for?
Re: Limit Switches not engaging
Qdeathstar wrote:Why does the v3 even need those adjustment screws for?
I would assume it's cheaper to continue using a screw instead of redoing the carriages to have a protrusion that hits the switch as part of the mold.
If they did that they'd have to carry 2 version as spare parts and that increases costs.
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Re: Limit Switches not engaging
Autocalibration is nice,,, but when it doesn't work correctly on my Eris, I wish it had adjustment screws.Qdeathstar wrote:Why does the v3 even need those adjustment screws for?
R-Max V2
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Re: Limit Switches not engaging
Have you contacted support /directly/ about the problems you're having?Mac The Knife wrote:Autocalibration is nice,,, but when it doesn't work correctly on my Eris, I wish it had adjustment screws.Qdeathstar wrote:Why does the v3 even need those adjustment screws for?
g.
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Defeat the Cartesian Agenda!
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http://geneb.simpits.org - Technical and Simulator Projects
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Re: Limit Switches not engaging
In the beginning, after I overheated the accelerometer on the original board. Now I just print a test piece, measure, and adjust the offset in the eeprom.geneb wrote:Have you contacted support /directly/ about the problems you're having?Mac The Knife wrote:Autocalibration is nice,,, but when it doesn't work correctly on my Eris, I wish it had adjustment screws.Qdeathstar wrote:Why does the v3 even need those adjustment screws for?
g.
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Re: Limit Switches not engaging
yes, I put mine in, and saw that they were squashed down and jerked them off. the next day, I saw your manual revision!
geneb wrote:Kevinvandeusen wrote:also make sure to remove the silver switch arms.
THIS. A million times, THIS.
I wasn't aware of that until AFTER my build was nearly done. I was highly annoyed when I found out I had to partially disassemble the machine to get at those stupid levers. I made sure to update the docs with an uppercase warning when I discovered this.
g.
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Re: Limit Switches not engaging
Oh... I guess it doesn't matter so much in the v3 but with my v2 I had issues with the calibration changing, and I think that's cause I over torqued the screws originally trying to learn how to do it, causing the screws to sit a bit loose and vibrated out over time... I just took them out and made my adjustments in eeprom and I've printed for about 100 hrs with no adjustment necessary other than a .5mm difference in z-hieght between pla and abs...
Speaking on that, I'm getting the acceleration board and I thought I read that you do the calibration cold.... But how does it account for z-height differences when it's at temp? Does it just probe once in the center to set the hieght?
Speaking on that, I'm getting the acceleration board and I thought I read that you do the calibration cold.... But how does it account for z-height differences when it's at temp? Does it just probe once in the center to set the hieght?
Re: Limit Switches not engaging
I calibrated mine cold and then set the first layer height to be .450 - it works great.
That being said, you CAN calibrate it hot as long as you make sure the nozzle tip is squeaky clean and isn't drooling filament.
g.
That being said, you CAN calibrate it hot as long as you make sure the nozzle tip is squeaky clean and isn't drooling filament.
g.
Delta Power!
Defeat the Cartesian Agenda!
http://www.f15sim.com - 80-0007, The only one of its kind.
http://geneb.simpits.org - Technical and Simulator Projects
Defeat the Cartesian Agenda!
http://www.f15sim.com - 80-0007, The only one of its kind.
http://geneb.simpits.org - Technical and Simulator Projects
Re: Limit Switches not engaging
geneb wrote:The screw should be 3/4" long - if it's not, bug SeeMeCNC about it. Some of the early kits may have gone out using the pre-packed carriages for the v2, and those screws were only 3/8" or so.
g.
I did find the note to remove the silver tabs so that wasn't a problem I had to deal with. I managed to find a left over set of 3/4" flat head screws and those solved the problem perfectly.
Thanks!
Re: Limit Switches not engaging
I found that two of my limit switch screws would not enter the channel leading to the limit switchs. Rather than try to realign the screws or ream out the holes, I ground a bit off the screw heads. Now there is free movement through channel.