[FTC]: How to attach delrin to aluminum?

[chi-town-biker]

We’re talking about making a slider using 1/8” delrin sheets. But how do we attach it to aluminum channel? Normally I’d say glue it but the FTC rules only allow gluing plastic together. We could bolt it but the heads would extend above the delrin. Rivets?

Thanks

[Andrew Remmers]

Originally Posted by chi-town-biker

We’re talking about making a slider using 1/8” delrin sheets. But how do we attach it to aluminum channel? Normally I’d say glue it but the FTC rules only allow gluing plastic together. We could bolt it but the heads would extend above the delrin. Rivets?

Thanks

There are a number of ways to do this, but how exactly are you using it to slide?

I would drill a hole in the channel and the delrin and then just bolt it on, but it seems to me like you are not going to have space for a bolt.

I just read the rules on the Hardware rules and it doesn't seem legal But I would asked this on the Q&A anyway.

If you used counter-sinking screw heads you could get the flat surface your looking for if you machined the sheet a little more.

And one last thing I can think of is, you can bend the delrin around and attach on the sides of this mechanism if possible.

Thats what I got for now

- Andrew

[chi-town-biker]

Thanks for the reply. Let me clarify my original post.

We’re looking at using the slider as part of an elevator/forklift mechanism (ala http://www.chiefdelphi.com/forums/sh...Fforklifts%3F). I’m surprised that you think the rules do not allow delrin. I understand <R5> c. 1. (Any non‐reinforced polymer-based plastic sheet material may be used…) to allow delrin. The rule goes on to limit it to sheets 0.125” thick but does allow laminating it to form pieces up to 0.5” thick. We could laminate several sheets together and counter sink holes but we’re hoping there is a simpler solution that also avoids the bulk of laminated delrin.

Dave

[chi-town-biker]

Thanks for your response.

We are discussing using the slide to as part of an elevator/forklift assembly (ala http://www.chiefdelphi.com/forums/sh...s%2Fforklifts). I was surprised when you said the rules may not allow using delren. My reading of <R5> c. 1. (Any non-reinforced polymer-based plastic sheet material may be used …) would allow it. The rule goes on to limit the plastic sheets to a thickness of 0.125” though we may laminate them together to a thickness of up to 0.5”. I guess we could laminate the delrin and counter sink the bolt heads but we were hoping for a simpler way to attach the delrin to an aluminum frame without the bulk of laminated delrin. Does anyone have any suggestions?

Dave

[Kevin Thorp]

Is double-sided foam tape allowed?

[chi-town-biker]

Thanks for your response. I’ve been having trouble posting a reply. I think because I’m new to posting and I’m still in posting probation.

We are discussing using the slide to as part of an elevator/forklift assembly (ala http://www.chiefdelphi.com/forums/sh...s%2Fforklifts). I was surprised when you said the rules may not allow using delren. My reading of <R5> c. 1. (Any non-reinforced polymer-based plastic sheet material may be used …) would allow it. The rule goes on to limit the plastic sheets to a thickness of 0.125” though we may laminate them together to a thickness of up to 0.5”. Tape is not allowed to hold pieces together.

The team has come up with two suggestions. 1) laminate the delrin and counter sink the bolt heads but we were hoping for a simpler way to attach the delrin to an aluminum frame without the bulk of laminated delrin. 2) From the data sheet, delrin melts at 350 degrees Fahrenheit. Rough up the aluminum, heat the delrin until soft, press the delrin on the aluminum and see if it fuses—not exactly simple but a thinner solution.

Does anyone have any other suggestions?

Dave