Parts coming out different sizes

2635 Views 44 Replies 12 Participants Last post by wyzarddocbill, 9 mo ago

cncjones

Discussion Starter · 10 mo ago

Hello everyone, this is driving me crazy! I'm trying to make a small wood snowman, I have 2 parts that fit together and when routed out the main circles are perfect, the male and female parts are way off, 3/16" off. It makes the head area larger and the body smaller where they fit together. The router movements are perfect when making other parts it's just where they join
using aspire 3.09 old version, it also happens in Rhino, any words of advice or direction are appreciated. This is the drawing in Aspire

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cncjones

Discussion Starter · #2 · 10 mo ago

This is a pic of the test run from the drawing above

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gwilki

· #3 · 10 mo ago

Post your crv3d file and I will take a look at it. What size end mill are you using?

old55

· #4 · 10 mo ago

Welcome to the forum @cncjones

jw2170

· #5 · 10 mo ago

Welcome to the forum...

cncjones

Discussion Starter · #6 · 10 mo ago (Edited)

gwilki said:
Post your crv3d file and I will take a look at it. What size end mill are you using?

I'm using 1/4" end mill, it won't let me upload the crv file. Is there a certain method for uploading it?

cncjones

Discussion Starter · #7 · 10 mo ago

jw2170 said:
Welcome to the forum...

Thank you

cncjones

Discussion Starter · #8 · 10 mo ago

old55 said:
Welcome to the forum @cncjones

Thank you

Reactions: 1

difalkner

· #9 · 10 mo ago

cncjones said:
I'm using 1/4" end mill, it won't let me upload the crv file. Is there a certain method for uploading it?

Zip the file and see if you can upload it. If not then send a PM to @gwiki and see if he can assist. Alternatively you can put the file in Dropbox and post a link for download (or Google Drive, etc.). I don't use Vectric so I'm not much help.

cncjones

Discussion Starter · #10 · 10 mo ago

difalkner said:
Zip the file and see if you can upload it. If not then send a PM to @gwiki and see if he can assist. Alternatively you can put the file in Dropbox and post a link for download (or Google Drive, etc.). I don't use Vectric so I'm not much help.

Let me know if this works, thank you

Test pieces.crv3d

drive.google.com

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The Hobbyist

· #11 · 10 mo ago

I can easily draw this snowman, but I do not know what format YOU NEED in order to import it. What software are you using?

Joe

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The Hobbyist

· #12 · 10 mo ago

cncjones said:
Hello everyone, this is driving me crazy! I'm trying to make a small wood snowman, I have 2 parts that fit together and when routed out the main circles are perfect, the male and female parts are way off, 3/16" off. It makes the head area larger and the body smaller where they fit together. The router movements are perfect when making other parts it's just where they join
using aspire 3.09 old version, it also happens in Rhino, any words of advice or direction are appreciated. This is the drawing in Aspire View attachment 402257

It LOOKS like you have set the cut path for the router bit to 1/4" off of the design. The path must guide the CENTER of the bit, not the outer edge. Set the offseet to 1/8" for a 1/4" bit and try that.

Joe

The Hobbyist

· #13 · 10 mo ago

What software uses the cvr3d file format? I cannot open it with anything that I have

Joe

difalkner

· #14 · 10 mo ago

The Hobbyist said:
What software uses the cvr3d file format? I cannot open it with anything that I have

Joe

First post; he's using Aspire.

The Hobbyist

· #15 · 10 mo ago

Ahhh ... I should have caught that. I have not yet upgraded to Aspire.

Joe

Reactions: 1

cncjones

Discussion Starter · #16 · 10 mo ago

The Hobbyist said:
I can easily draw this snowman, but I do not know what format YOU NEED in order to import it. What software are you using?

Joe

View attachment 402259

Aspire or Rhino

cncjones

Discussion Starter · #17 · 10 mo ago

The Hobbyist said:
It LOOKS like you have set the cut path for the router bit to 1/4" off of the design. The path must guide the CENTER of the bit, not the outer edge. Set the offseet to 1/8" for a 1/4" bit and try that.

Joe

I have it to cut the outside of the part, from the center of the bit it measures .125, it cut all parts perfect but not the puzzle part. I've made a lot of things with Aspire and this router and this is the first time it has not worked

cncjones

Discussion Starter · #18 · 10 mo ago

This shows the bit on the outside of the work

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gwilki

· #19 · 10 mo ago

Sorry for the delay. I have not yet run the file in material. I did the visualization in aspire, as you did. In the visualization, measuring the pieces shows that they will fit together, EXCEPT, the bit you are using is too big for the "head tab"as you can see in your last post. That bit cannot get into the tight corner. However, the width of the "mortise" if I can call it that and the width of the "tenon" indicate that the two parts will fit together - with the issue of the tight corner.

I will try to get time to run it in 3/4" material later today and get back to you.

cncjones

Discussion Starter · #20 · 10 mo ago (Edited)

gwilki said:
Sorry for the delay. I have not yet run the file in material. I did the visualization in aspire, as you did. In the visualization, measuring the pieces shows that they will fit together, EXCEPT, the bit you are using is too big for the "head tab"as you can see in your last post. That bit cannot get into the tight corner. However, the width of the "mortise" if I can call it that and the width of the "tenon" indicate that the two parts will fit together - with the issue of the tight corner.

I will try to get time to run it in 3/4" material later today and get back to you.

Hi gwiki, when I route them the parts that fit together are 3/16 off, on my drawing it shows the parts 0.5183 on the widest point of both parts, when it cut the male part it becomes 0.584, the female part comes out to 0.410 and it should be 0.5183. the main body area is 3" perfect, so if the tool path shows it's cutting to the line on the puzzle piece why are they so different? I have done larger pieces and they come out the same way, could there be something in Mach3 that needs tweaking? I've gone in and rounded the corners off to the endmill size so there were no sharp corners and it keeps coming out 3/16" is the size on the puzzle pieces only. I can go in and make the pieces different sizes until they fit and after about 6 practice cuts it will work but I have not found a formula to go by. I've made round windows with keys and they fit perfectly but I haven't attempted a puzzle before, I don't understand it. I'll do it with an 1\8" bit today and post the results just for giggles
Thanks for your help

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