Hey Everyone,
Sorry if this is a repost, but I have looked through several posts and have not been able to find this problem in anyone’s posts. I am using Fusion 360 and the UGSPlatform with the Longmill. No matter what feeds and speeds I change them to in 360, it still cuts them at the same speed no matter what. I tried cutting some letters out on some poplar wood and the detail was not there. I’ve attached a photo of what it looks like so you can better understand what is happening. Each of these cuts are at different feeds and speeds, but they all didn’t turn out. I’ve also attached a picture of my feeds and speeds for each of these cuts.Please let me know if anyone can help me out.
Thanks.
What router are you using on your longmill? Is the speed manually set and the feed is only controllable with your software perhaps?
Thanks for the reply. I’m using a Makita router with a manual speed and the feed is controlled by the machine/program. I’m curious if I need to change anything in the ugs platform to let fusion 360 determine the feed.
gwilki
April 12, 2021, 10:44pm
4
@VegasBuilds Welcome to the group Braeden. UGS does not determine the feed rate. In your case Fusion360 sends that information in the gcode to UGS. You can slow it down or speed it up on the fly in UGS from the preset by up to 200%.
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Thanks! I couldn’t upload the file because it wasn’t supported so I pasted the plain text below. This is the G code for Test 2. I know you don’t need all the code, but I’m not sure what is what so this is the first half of the text.
(1001)
(Engrave2)
gwilki
April 14, 2021, 12:08pm
6
@VegasBuilds The gcode shows that the feed rate is 28 inches/minute as your chart says. You mentioned that each test has a different feed and speed. However, your chart shows the same feed (40) and speed for tests 1, 3 and 5. Then a different feed (28) and speed for tests 2, 4 and 6.
You’ve only shown the gcode for test 2, but it’s likely safe to conclude that all the others would show the same thing; that is, the gcode does reflect what you are putting into F360.
It does not make sense, then, that there is no difference in the feed rate between the two groups of tests. You should see a difference in the feed rate between test 1 and test 2, for example.
I’m sorry,but, I can’t help any more. Maybe someone else here can jump in, but your gcode and your experience seem to contradict each other.
Hey Grant,
I really appreciate you taking the time to help me out. I am going to run some tests with much slower feed rates to see if they are all the same again. Something where it will be very obvious when it starts cutting. Thank you again for helping me out.
gwilki
April 14, 2021, 3:24pm
8
@VegasBuilds You’re very welcome, Braeden. Your speed should not be the problem. I run my 60° and 90° 1/2" vbits at between 80 and 100 ipm with the router at top speed and they cut well. Poplar can be gnarly and you are cutting along the grain, which adds to possible issues. You may want to try higher speeds, higher feeds, and cross grain, just to see how it looks. Your pass depths seem conservative, so I wouldn’t think that is an issue. Is your bit sharp?
I believe it is sharp but I will try a different bit to see if that is the issue.
Thank you for the help!
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Hey Grant,
I wanted to give you an update and let you know I was able to solve the issue. After becoming really frustrated with another cut I noticed my router was moving more than normal. I then started to check all the nuts and bolts and noticed that the router holder was loose. This was causing the router to cut close to what the image was but any resistance in the x direction caused the router to move. Here is a photo of an example of what I was talking about. I had to take some of the machine apart in-order to reach the screws, but after doing that, it worked great! Thanks again for helping me out!
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