Hi all, im having trouble with my z-axis not cutting to the depth i want.
My son hand drew a picture that i scanned and converted to an svg file. I uploaded this file to easel and set it out as follows
Bit: 90° V CARVE
Feed rate: 760mm
Pass depth: 3mm
Safety height: 2.5mm
The problem is when sled moves to start position, z-axis lowers to work surface but does not penetrate timber. It also seems like z-axis is making micro movements up and down as it progresses.
I changed projects and was successful through the cut. I have also used the v carve bit on other projects.
Im wondering if its a problem with the design or g-code?
Any help very much appreciated
do you have a bungee cord holding down the router against the Z axis? if not,
the backlash is going to give you lots of problems.
Thank you for replying. My z-axis is mounted with 3d printed part with lead screw on a bosch router.
Everything functions properly on the z-axis normally. Would it be helpful to upload video or design file?
a video of it misbehaving and a copy of groundcontrol.ini would be good.
a servo system like the maslow (encoder + motor) does have a tendency to seek a
little bit, it’s not like steppers that can stay motionless (unless you
On a standard maslow, the resolution of the encoders is extremely high and so
wandering a little bit isn’t measurable. Since you are using a different setup,
it could be that the steps per mm for the Z axis just isn’t high enough and you
notice the wandering.
Thank you again. I will be able to get video in about 3hrs when i get home. Will upload both video and groundcontrol.ini
I just noticed probably the same thing today. It was my first time using a 90 degree V bit.
The problem is that the wide bit angle doesn’t fully dig into the wood before the AX moves start. You can actually see the sled tipping back and forth a little as the moves are started. I tried slowing down the feed rate to 400mm/min and it helped but didn’t eliminate the issue. I was only cutting 3mm deep. I also found that reducing to 2mm deep helped but again didn’t resolve the issue entirely.
I’m hoping to pick up a new bit to try tomorrow.
You may also need to account for calibrating the thread/lead screw pitch on your set up if it’s not the Ridgid.
In my case it’s the recommended Ridgid router.
Thank you for the advice much appreciated. Unfortunately ive been called to work and wont get a chance to get back to my maslow for about a week now so cant upload video or ini file
The more i think about it the more im convinced it is the design im trying to cut, along the lines of what @terry1769 has mentioned.
When I do get a chance to use the maslow again i will upload the design file along with video.
Again thank you wonderful forum members
Are you using a bungie to pull the router into the work?
Im in australia and the router that was most suited here is the bosch 1200 ae. It uses @Ned 3d printed coupler and a lead screw to pull the router down. So no bungie cord. I have measured z travel and adjusted step back when i calibrated machine. I have also checked z travel and have around 55mm.
These cuts were completed with out issue after i experienced the problem using the v carve bit.
@Bee, Yes, I’m using a bungee.
Got a new 1/4" vee bit and it definitely helped.
Can you share - before and after pics? That might help someone in the future.
I had the similar problem and after intensive trial and error I found that the bit was actually lifting the router away from the timber. The plywood had soft spots and hard spots so I had to change the angle to accommodate this. Good Luck!!
Ok sorry i have not had a chance to upload video for this problem. Im home now and have taken some video. It is hard to video the problem at the router unfortunately. If a different angle or video of something else will help let me know and i will try that
I feel like @terry1769 might have identified the problem. Maybe i need to tidy up design more?
Grr wont upload video, is there size limit?