I was recommended roll pins from a response on this thread, and it looks like spring pins can be used as roll pins as well. As long as they fit tightly and don't wiggle, I am happy. I put the holes as 0.125 + 0.004 tolerance. All should be well then. Thanks guys!
Ah, that's a good point... But it's a 1'' thick plate, and the holes would go 0.5'' deep. Is that still too risky? I can do one of two things. Make the plate thicker or make the holes more shallow. Making the holes shallow would be cheaper than getting a thicker plate too.
Yes, I definitely need to get my hands on that book.... It's been recommended quite a bit.
So the arbor can only help when its widening the hole within the thousandths of an inch.
and here is what I'm probably getting...
Sure. I don't have access to the drawing so this is the best I can do right now. The blue rectangle is supposed to indicate the area that I would like to look different than the rest of the sheet. It's essentially a 0.5 by 4 inch rectangle used as guidelines for aligning samples accurately...
Thank you Mike, I will find a small arbor press, sounds like a better idea..
@tbuelna, if I am still giving the hole a tolerance of + 0.004, is there a certain process they still have to use? I thought drilling would leave lobes.
@jgKRI, I see. so, back to my earlier question, If I have a hole...
Hello,
I am designing a lab scale fixture consisting of a 1'' thick plate of aluminum. On this sheet of Aluminum, there is a rectangle (on the surface, not above the surface) that I would like to have a noticeably different visual look than the rest of the sheet. I want this because I'm using...
Excellent! I'm ordering plain steel finish spring pins. Pin diameter is between 0.135-0.131 and the recommended hole size is 0.129 to 0.125. If I have a hole that is 0.125 and a pin size of 0.135, can I still press fit that lightly with a hammer? Keep in mind it's a solid aluminum plate. Thank you!!
Thank you all for the detailed responses!! This is very helpful.
Before reading these, I actually came across the dowel pegs myself! So I changed the rod I was looking at on McMaster to dowel pegs to have a tighter tolerance. This is the one I am looking at to buy...
Thank you for the response.
I find it very odd how I can't use construction lines to define the geometrical location of something. Isn't that the point of construction lines in a lot of cases?
And if I want to get this machined, would they not think that these lines should also be machined...
Hello,
I am designing a simple sheet of aluminum that has multiple holes 0.5’’ deep in CATIA. After it is machined, the goal is to insert steel pegs of diameter 1/8’’ in these holes, and I don’t want it to wiggle around very much.
According to the ANSI standard for sliding fits, my desired...
Hello,
I drew a bunch of holes and constrained them to different lines. However, since I don't actually need the lines and I only need them for the geometric location of the holes, I converted them to construction lines. However, everytime I do that, CATIA says there are issues with my hole...
@rickyt,
Unfortunately, I believe I drew my top view on the wrong plane or something because it ends up labeling it as a front view instead. Is there any way I can change the planes so that it thinks that my 'front view' is actually my top view and so on? Sorry if I sound confusing..
Hello,
I've started using Catia quite recently. I've made a part that I would like to dimension in 2D drafting, but the holes that I have made are not showing on the side of my part. They're supposed to be 0.5'' holes, but it looks like they're just on the surface because I see no depth when...
