Taulman3D Taulman TECH-G PETG Filament - 1.75mm (1kg)

Agree with the moderator response. Many materials are FDA and USDA approved and those approvals are helpful if you are using them to make PPE for medical workers. Every material or component I have ever purchased that come with some agency approval or compliance are understood (usually in the fine print) to be subject to end use (or misuse) and proper application.

@Tom Fountain Links for the mechanical properties of TECH-G PETG and MH Build PETG are embedded. If you have additional questions, feel free to submit them at support@matterhackers.com.

@Mike Gregory The PETG Tech-G is a good option. You may also choose traditional Nylon or ABS. All will meet your requirement.

At $32.00, the price per meter is between $.08 and $.10.

Actually you do want the nozzle to spread out all layers, but only up to about 1.5X the orifice diameter. Proper nozzles have a much larger dia flat face around the orifice. That face is designed to "smush out" the hot plastic. You don't want a round bead laid down since then its bonding surface is tiny. You want an oblong bead laid out. Max layer height about 80% of nozzle dia and layer width proportional to the height. We are using .4mm nozzle (e3DV6) with 0.32 mm layer height and 0.60 mm line width to make face shield headbands which are super strong and print quickly. You want the layers to stack up like bricks, not logs. Here's a good diagram: https://cdn.shopify.com/s/files/1/0714/6487/files/layer_height_pressure_c624b418-a82a-4576-a1ff-73c02bf122eb.jpg?9539932374891981164

Usually, small holes and blobs are a result of the hot end pausing intermittently during printing. I would need a little more information on how you are prepping your print file and controlling your printer. Send pics to support@matterhackers.com and we can take a deep dive.

I know this is a little late as a response, but I had problems printing PETG, not the Taulman brand, and the answer to a lot of PETG problems is do not squish your first layer, as you would with PLA or ABSD, instead allow it to lay down on the bed. When you squish, the nozzle is dragging through the layer and picking up blobs which causes imperfections throughout the whole part.

Thanks. I'll send you an email in a while

PETG is not as easy to use as PLA! Anyone who says so is being wildly optimistic. I say this pooling the results of a group of six of us having recently printed many kg of PETG from multiple reputable vendors. Hang in there and google or talk to someone who's figured it out.

If you send an email to support@matterhackers.com, with a little more description about what is happening, we may be able to help.

Tried again with 0.2 mm layers instead of 0.1 mm and is was much better. This stuff appears to have a fairly narrow temperature range for successful printing. Doesn't seem to set as fast as ABS so may be better on larger objects. I'll try that next. It's strong. It'll bend before it breaks.

Try a lower speed around 50mm/s or less and a faster travel speed to reduce stringing. The type of infill you are using is also very important PETG prints with gyroid infill all turn into a birds nest no matter what.

With petg it's shrinkage is super low but it's also super sticky as is also the reason you get stringing. Petg is notorious for tiny hairs that stick around. Lower zheight layers cause more issues because the nozzle will pick up material. 0.1 is harder to dial in. 0.2 or 0.3 is best.

I print almost exclusively in petg. Love it. Printing speeds at most shouldn't be 50mm/s if you are printing things where retraction matter like a benchy. Solid parts where strings don't matter cause travel is on infill is best with higher speeds.

Next petg has a decent print range I can use anything from 230 to 260. I do about 240.

As well dimensional accuracy is great. If you are getting stringing still, try outer walls with lower feed percentage like 70% with infill and inner walls at 80 to 90%.

I print items that are literally 0.1mm in needed accuracy for stuff that slides and needs notches etc. And I do it with a cheap as hell anet a8. So I know higher end printers have no issues.

Apologies on the error! This has been fixed, thank you for catching that and letting us know!