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General Category => General Discussion => Topic started by: dsrdave on August 05, 2021, 09:42:23 AM

Title: 3D printing rubber part ??
Post by: dsrdave on August 05, 2021, 09:42:23 AM
I’m having difficulty finding the rubber piece between the velocity stack and air cleaner on the stornello 125.  Is it possible to 3D print something like that??? Any help or advice is appreciated
Thx dave
Title: Re: 3D printing rubber part ??
Post by: blackcat on August 05, 2021, 10:13:27 AM
I'm also interested in a possible part print of #25:

(https://i.ibb.co/2WJx2Kd/fullsizeoutput-4601.jpg)

Just a small piece of gray plastic.
Title: Re: 3D printing rubber part ??
Post by: Bisbonian on August 05, 2021, 04:29:38 PM
You might be able to do it with TPU but I'm really not sure, there is likely a better filament to get the job done.

I've used TPU to print tires for my creeper wheels, pullies for my bicycle chain, and feet for my ladder but that's about it.

TPU is fairly flexible but I'm not sure how it would hold up long term to vibration and weather. I still have most of spool left and I'd give it a try if you have good dimensions of what you're looking for.
Title: Re: 3D printing rubber part ??
Post by: Bisbonian on August 05, 2021, 04:31:13 PM
I'm also interested in a possible part print of #25:

(https://i.ibb.co/2WJx2Kd/fullsizeoutput-4601.jpg)

Just a small piece of gray plastic.

I think there is any number of filaments that can be used for that. ABS might be best but I haven't tried that yet, I'd probably start with PLA+ and then maybe move on to PETG for outside use in the weather.
Title: Re: 3D printing rubber part ??
Post by: Rick4003 on August 06, 2021, 06:56:27 AM
I’m having difficulty finding the rubber piece between the velocity stack and air cleaner on the stornello 125.  Is it possible to 3D print something like that??? Any help or advice is appreciated
Thx dave
It should be quite possible to print in TPU. I have used it for several different parts. Do you have some good measurements or pictures of the part needed? it would likely need to be drawn up in CAD before you can print it. Unless someone have already made one and shared the parts, which is unlikely.
Title: Re: 3D printing rubber part solved!!
Post by: dsrdave on August 26, 2021, 05:50:23 PM
A BIG thank you to Adam for printing the velocity stack boot
It looks and fits great !!
(https://i.ibb.co/dbdqqGW/344-C2-C43-BA45-4-EAD-B92-B-D8-FD767-A4-B77.jpg) (https://ibb.co/dbdqqGW)

(https://i.ibb.co/72JmzdV/571-F4153-ECE3-4491-98-D3-6-BFC1-B05-ADA0.jpg) (https://ibb.co/72JmzdV)
Title: Re: 3D printing rubber part ??
Post by: Ncdan on August 26, 2021, 07:05:56 PM
Could you 3D guys possibly print the rubber piece that’s used in the turn signals on the EV style bikes? You know the ones that are always breaking due to the material getting hard and brittle. If so I’ll take 4👍
Title: Re: 3D printing rubber part ??
Post by: Wayne Orwig on August 26, 2021, 08:28:38 PM
Could you 3D guys possibly print the rubber piece that’s used in the turn signals on the EV style bikes? You know the ones that are always breaking due to the material getting hard and brittle. If so I’ll take 4👍

And I hear the spares are out of production.
Title: Re: 3D printing rubber part ??
Post by: dsrdave on August 26, 2021, 08:30:31 PM
Is the EV turn signal the same basic design as the griso and quota ones ??
If so I found a fix …….
Title: Re: 3D printing rubber part ??
Post by: Ncdan on August 26, 2021, 08:49:21 PM
Is the EV turn signal the same basic design as the griso and quota ones ??
If so I found a fix …….
Not sure about that Dave. I have an 02 Stone if that helps.
(https://i.ibb.co/qy3JHG2/15-BC048-C-41-D3-4140-8-AF4-DC97779-A276-F.jpg) (https://ibb.co/qy3JHG2)
Title: Re: 3D printing rubber part ??
Post by: Bisbonian on August 26, 2021, 10:18:48 PM
Could you 3D guys possibly print the rubber piece that’s used in the turn signals on the EV style bikes? You know the ones that are always breaking due to the material getting hard and brittle. If so I’ll take 4👍

You'd have to send a pic and diagram with dimensions. I'd be willing to give it a try.
Title: Re: 3D printing rubber part ??
Post by: dsrdave on August 27, 2021, 02:50:19 AM
Post a picture of the stone turn signal mount please
Thx dave
Title: Re: 3D printing rubber part ??
Post by: huub on August 27, 2021, 04:13:00 AM
at work we use something called ninjaflex to 3D print flexible parts.
amazingly solid stuff , would be perfectly suited for carb boots etc.
Title: Re: 3D printing rubber part ??
Post by: Wayne Orwig on August 27, 2021, 07:19:20 AM
Is the EV turn signal the same basic design as the griso and quota ones ??
If so I found a fix …….

I am pretty certain that it is not the same.
The EV turn signal rubber and a metal hook cast into the base of it. The rubber gets brittle and the hook comes out.
Title: Re: 3D printing rubber part ??
Post by: dsrdave on August 27, 2021, 09:28:18 AM
Yes, that sounds different.  The griso/quota and others have notches in the plastic extensions and when it dries out they break off
Title: Re: 3D printing rubber part ??
Post by: Ncdan on August 27, 2021, 10:20:17 AM

(https://i.ibb.co/61vS8m2/7-F69-D0-AC-F99-D-41-E5-8-AFA-B736022382-B9.jpg) (https://ibb.co/61vS8m2)

I can’t send any dimensions. Maybe if one could be sent to you, would that help?
Title: Re: 3D printing rubber part ??
Post by: Groover on August 27, 2021, 11:02:28 AM
Sort of related, this got me intrigued and found this on Youtube:


https://www.youtube.com/watch?v=uR_xVABJhig



Title: Re: 3D printing rubber part ??
Post by: dsrdave on August 27, 2021, 11:45:08 AM
That looks very similar to what I had. I took mine apart, cut the stem to reduce bouncing around and the lever arm. Sanded both surfaces flat, cleaned and expoxied them back together. I found some 1-1/8” shrink tube with hot melt glue on the inside. Slipped that over the stem and used the heat gun. So far it’s stood up well. I don’t know how long term this will be but, so far so good!!
Hope this helps
Dave
(https://i.ibb.co/b3D7B12/625-D751-E-3-F57-465-A-9-B2-F-36-F1-A316017-B.jpg) (https://ibb.co/b3D7B12)