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  1. Attach the four rubber feet to the corners of the Base. M4 x 16mm Button M4 Nyloc Nut
    • Attach the four rubber feet to the corners of the Base.

    • M4 x 16mm Button

    • M4 Nyloc Nut

    • Photographed are 3D printed feet, however the ones included are injection moulded rubber.

    • The Feet are silicone rubber, pliers will be needed to help hold the nyloc nuts in place whilst fastening. This was an unfortunate oversight, and one we weren't able to correct due to the cost of tooling for these injection moulded parts.

    If you have a socket set with a 9/32 (imperial) or 7 (metric) bit, it can be used to hold the nut in place. Apply some force while driving the screw (clamping the base helps) and you should get a better outcome than with the pilers.

    Jordan Mele - Reply

    Trying to hold the nuts in place with pliers while installing was frustrating and slow. I came up with what I think is a better solution here:

    https://www.thingiverse.com/thing:526888...

    Note that the addition of these parts I designed might occlude access to the other holes in the base that are under the feet, so it might be wise to install them later. I’m not sure yet as I haven’t had time to get beyond this step; I’m just giving fair warning here.

    Josh Heiner - Reply

  2. If building the Proforge 3.5, skip this step. Fix the four metal brackets to the sides of the base. Bracket
    • If building the Proforge 3.5, skip this step.

    • Fix the four metal brackets to the sides of the base.

    • Bracket

    • M5 x 3mm Spacer

    • M5 x 16mm Button

    • M5 Nyloc Nut

    • Do not tighten yet, just hand fasten to leave the bracket fixed loosely.

    • Make sure the bolt on the bracket is facing outwards and away from the centre of the base panel.

  3. Install the electronics fan as shown: Make sure the sticker side of the fan points inwards.
    • Install the electronics fan as shown:

    • Make sure the sticker side of the fan points inwards.

    • Make sure the cable is also orientated as shown.

    • M3 x 20mm CAP

    • M3 Nyloc

    I cant find where to connect this fan. Pls give me proper image where i need connect this fan. In wiring I cant any remarks about this fan.

    Piratron.net - Reply

    Assembly’s process is maze, think you should spent more time to make it easier and label things in more organized packing. The only thing to know the correct fan is the shortest cable !

    Guys look to other brads assembly manuals and use their way!

    Also, I do recommend to upload the design files ( Stl ) for plastic parts or ant part could be printed in case of damage.

    Wadi Ramahi - Reply

    In case anyone else is wondering, the “electronics fan” is identified in the packing list as “40mm Fan (20CM)”

    The 20cm refers to the cable length.

    Josh Heiner - Reply

    Suggestion: “Make sure the sticked side…” ➔ “Make sure the side with the label…”

    Can’t say I’ve heard the word “sticked” before in reference to a label. Or in any context, really.

    Josh Heiner - Reply

  4. Fix four stand-offs to the base: M3 x 10mm threaded stand-off M3 x 6mm Button
    • Fix four stand-offs to the base:

    • M3 x 10mm threaded stand-off

    • M3 x 6mm Button

    • Before removing the control board from it's packaging, make sure that you are earthed, you can do this by touching a large metal object. This is to ensure a static shock doesn't damage the board.

    • Fix the board onto the mounts with four M3 x 6mm button head bolts.

    • Make sure the board is orientated as shown.

    • Plug the electronics fan into the control board as shown.

  5. Before mounting the PSU, check that it's voltage input is adjusted correctly for your location. The switch on the side of the unit should be set to your mains voltage. In the UK this would be 230v, in the USA it would be set 110v. Fix the PSU to the base with four M4 x 6mm button head bolts. An easy way to line up the holes is to place the PSU under the base and look through the holes from the top until they line up, and you can secure one of the bolts. The rest should then easily follow.
    • Before mounting the PSU, check that it's voltage input is adjusted correctly for your location. The switch on the side of the unit should be set to your mains voltage. In the UK this would be 230v, in the USA it would be set 110v.

    • Fix the PSU to the base with four M4 x 6mm button head bolts.

    • An easy way to line up the holes is to place the PSU under the base and look through the holes from the top until they line up, and you can secure one of the bolts. The rest should then easily follow.

    • Note the orientation of the PSU, it should match the third photo.

    Mine says 115V, assume that’s fine.

    Alexa Adams - Reply

    Yes, that is fine.

    Makertech 3D -

  6. Push the switch side of the assembly in through the rectangular cut-out at the back of the base. Push the socket in and and secure it in place with: M3 x 10mm Cap
    • Push the switch side of the assembly in through the rectangular cut-out at the back of the base.

    • Push the socket in and and secure it in place with:

    • M3 x 10mm Cap

    • M3 Nyloc

    • Again, match the orientation of the socket as shown in the second image.

  7. Disassemble the switch assembly by pulling the adaptor off the switch and undoing the nut. Push the switch in though the hole at the front of the base. Fix the switch in place by tightening the nut back onto it. DO NOT OVERTIGHTEN.
    • Disassemble the switch assembly by pulling the adaptor off the switch and undoing the nut.

    • Push the switch in though the hole at the front of the base.

    • Fix the switch in place by tightening the nut back onto it. DO NOT OVERTIGHTEN.

    • Plug the cable adapter back on, note the orientation, the side with the release lever should go on the side that has the tab on the switch housing.

    Is the switch spring loaded, meaning if pushed in, will it come back out with additional pressure ? Or does it only pop out if the printer is powered ?

    Bruce - Reply

  8. Fix the earth cable (shorter black cable) from the socket to the frame. M4 x 10mm Button
    • Fix the earth cable (shorter black cable) from the socket to the frame.

    • M4 x 10mm Button

    • M4 Nyloc

    • Scruff up the surface of the Base where the terminal makes contact here to get a better electrical contact with the frame.

    Also, hopefully this is obvious, but some people may not realize it: if you want your entire machine to be safely connected to earth ground, you’re also going to need to remove paint where the screws attach the base to other metal parts of the machine. Otherwise, only your base will be earthed!

    Josh Heiner - Reply

    The wire color will have no functional impact as long as everything is properly connected, but I wanted to point out that as far as I know, the international standard for a chassis ground (earth) wire is green with a yellow stripe. This should also be true in the UK where the printer originates. In the US, the black wire is typically hot, and it of course would be disastrous if someone got confused and miswired the black chassis ground conductor to AC hot! https://www.skillstg.co.uk/blog/guide-to...

    Josh Heiner - Reply

    Might want to put the scruff up part in red, as there is no electrical contact with the powder coat in the way. So its in no way just a recommendation just for “better” electrical contact.

    Gabriel Lambert - Reply

  9. Connect the longer black cable from the socket to the power supplies earth terminal. Connect the blue cable from the socket to the neutral terminal on the power supply.
    • Connect the longer black cable from the socket to the power supplies earth terminal.

    • Connect the blue cable from the socket to the neutral terminal on the power supply.

    • Connect the white cable from the switch to the live terminal on the power supply.

  10. Connect the red and blue cables from the switch to the terminal on the power supply as shown:
    • Connect the red and blue cables from the switch to the terminal on the power supply as shown:

    • Red to positive

    • Blue to negative

  11. Secure the black and red power cables to the control board as shown. On the power supply side, the red cable goes to positive and the black to negative. Double check that all the cables are connected correctly, as shown in the images. Incorrectly connecting the cables can cause irreversible damage.
    • Secure the black and red power cables to the control board as shown.

    • On the power supply side, the red cable goes to positive and the black to negative.

    • Double check that all the cables are connected correctly, as shown in the images. Incorrectly connecting the cables can cause irreversible damage.

  12. If building the Proforge 3.5, skip this step. Fix the two 1.8 degree NEMA 17 motors to the base. Serial No. 42BYGH438. M3 x 6mm Cap Head Bolt
    • If building the Proforge 3.5, skip this step.

    • Fix the two 1.8 degree NEMA 17 motors to the base. Serial No. 42BYGH438.

    • M3 x 6mm Cap Head Bolt

    • Make sure that the cable header, on the motor, is facing inwards.

Finish Line

9 other people completed this guide.

Makertech 3D

Member since: 03/09/2018

46,775 Reputation

119 Guides authored

3 Comments

The rubber feet don’t hold the nuts well enough to tighten the screws. I had to try and shove a socket wrench head in to hold it well enough. Tightening those 8 screws took over half the total build time for this part.

I couldn’t find the threaded standoffs in the BOM/Parts packing list.

Looking through the kits, I found only 2x m3 threaded spacers. The only 4x threaded spacers I can find are M2.5. I used PC motherboard standoffs to replace the parts.

Kenn Walker - Reply

The 2 motors plastic connectors were Brocken, but had to install them and HOD cable will not be loosen. The cable connectors are very weak and loose in the cartoon guess need better backings

Wadi Ramahi - Reply

This guide lists “M3 x 10mm threaded stand-off” in Step 4, but the packaging calls that “M3 x 10mm Threaded Spacer”

I don’t see anything in the directions indicating how to tell which motors are 1.8 degree motors. I googled the 2 model numbers on the motors, and didn’t see anything related. I did eventually find on Shengyang Motor’s website that the “42BYGH” series is 1.8 degrees, and “42BYGE” series is 0.9 degrees.

Greg Murnane - Reply

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