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May 2015

Hi,

Yes, I do print, but whether or not I will be able to do this successfully, I’m not sure. What material/colours do you need these in?

I’m just having a quick play with the file you sent me on my machine in white ABS, but it’s so small and delicate, at least in these dimensions that I’m not sure it is printable, at least using FFF methods. You might need something more specialised, or someone with better kit than me.

Can I ask what the application is? Is there room to manoeuvre on sizing etc? I’m just playing with a larger version now to see what happens.

Mike

https://www.3dhubs.com/gloucester/hubs/mike

Hi,

I’ve attached a Jpeg to give you an idea of what I’m trying to achieve (the full model) - I’m making a much smaller prototype/exhibiton model. The seating part is around 45cm at its longest length across so the modules need to be ‘around’ the right size so there is bit of leeway.

how much bigger were you thinking?

Francesca

oops…i,m located in the netherlands…if id seen it sooner…

but won,t be able to get it there before thursday…

I’m down near Coventry and most likely could get them printed if they are able to be printed on fdm machines and posted to you by Wednesday/ Thursday.

That would be brilliant if you could ! did you read the below comments about the correct scaling etc?

Message me if you need more detail/info on the project!

I will, sorry my internet is so slow it’s taking ages to download the file. Also by how much can I upscale the design?

George

Ok I will try one now at 2500% original scale which is slightly over 4.5cm3 but will give us an indication. My gut instinct is that the poles may need to be thicker. I’ll see though.

Yes okay that probably would help as there would be less drooping on the overhangs. Also does this have to be finished up to a high standard or is it just a prototype?

Its a model for an exhibition so a relatively high standard would be preferred. It depends what you mean by a high standard?

Ok, well the thing is because my printer extrudes plastic it often struggles with overhangs as do all fdm printers. Therefore I would need to put in lots of support material for it to build onto, this is often hard to get rid of and can leave a rough surface. Anyway Ill see how this goes and get back to you.

Hi I’ve tried the print and unfortunately bad news. As feared the poles have lots of droop on them and are very week as they aren’t thick enough. Also some of the poles weren’t able to print as the overhang was too great with out support. I would recommend trying a resin printer. But if you must have it fdm printed you will need to make the poles thicker by at least 2-3mm I would think and add support in cad on pretty much all the overhangs. I will attach a picture of the failed print.

Ah thats a shame, I wouldn’t be able to make the pole thicknesses thicker quickly as it was a long process making the original model and I’m no expert in CAD! Thank you for the advice.

I suppose you could ask some people on here. There are some actual experts on here!

yes this one looks better, ill have a g at printing it tomorrow if you like.

Hi gabriela3D, unfortunatly i was the 1st person to let francesca down! i current have about 30-40hrs works cued up on my machine and was unable to get a new job going untill the end of the week!

Hi,

I have tried it again and I do not believe this will be printable on a fdm machine like mine. I would see if there is anyone near you with a resin machine as others have stated. It may be able to be printed if it is much bigger than 45mm3. It is just too small for my machine. I don’t know anyone that has a resin machine and could have it done by Thursday, unfortunately.

Sorry I couldn’t help.

If this is the model I uploaded you may have to check with Francesca that it is the right model. All I did was upscale it though.